CNGS Operation Results 2008 Edda Gschwendtner AB/ATB on behalf of the CNGS team.

35
CNGS Operation Results 2008 Edda Gschwendtner AB/ATB on behalf of the CNGS team
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Transcript of CNGS Operation Results 2008 Edda Gschwendtner AB/ATB on behalf of the CNGS team.

Page 1: CNGS Operation Results 2008 Edda Gschwendtner AB/ATB on behalf of the CNGS team.

CNGS Operation Results 2008

Edda Gschwendtner ABATB on behalf of the CNGS team

BENE08 2 Dec 2008E Gschwendtner ABATB

2

E Gschwendtner ABATB

2

bull Introductionbull CNGS Facility

ndash Layout and Main Parametersndash Startup Issuesndash 2008 Performance

bull Highlights from the OPERA Experimentbull Outlook for 2009bull Summary

Outline

BENE08 2 Dec 2008E Gschwendtner ABATB

3

CERN Neutrinos to Gran SassoIntroduction

Experiments OPERA (1200 ton) ICARUS (600 ton)

~1 observed interaction with 21019 pot

451019 potyear (200 days nominal intensity)

221017 potday ~1017 day ~1011 day at detector in Gran Sasso

3600 interactionsyear in OPERA (charged current interactions)

2-3 interactions detectedyear in OPERA

CNGS Run 2008 1781019 pot

long base-line appearance experimentbull Produce muon neutrino beam at CERNbull Measure tau neutrinos in Gran Sasso Italy (732km)

CERN

Gran Sasso

BENE08 2 Dec 2008E Gschwendtner ABATB

4

CNGS Timeline2000-2005

Civil Engineering amp Installation

CERN

10 July-27 Oct

2006

Beam Commissioning CERN

008 1019 potDetector electronics commissioning

Gran Sasso

Shutdown

2006-2007Reflector Water Leak RepairImprovement

CERN

17 Sept-20 Oct

2007

Beam Commissioning at high intensity

CERN

008 1019potDetector commissioning with 60000 bricks

Gran Sasso

Shutdown

2007-2008

Additional shielding and electronics re-arrangement

CERN

Finishing OPERA bricks Gran Sasso

18 June-3 Nov 2008

CNGS Physics Run 178 1019pot

Introduction

BENE08 2 Dec 2008E Gschwendtner ABATB

5

434m100m

1095m 18m 5m 5m67m

27m

TBID

CNGS Conventional Neutrino Beams

p + C (interactions) K+ (decay in flight)

Produce pions and Kaons to make neutrinos

CNGS Facility ndash Layout and Main Parameters

targetmagnetichorns

decay tunnel

hadron absorber

muon detector pit 1

muon detector pit 2

BENE08 2 Dec 2008E Gschwendtner ABATB

6

Beam parameters Nominal CNGS beam

Nominal energy [GeV] 400

Normalized emittance [m] H=12 V=7

Emittance [m] H=0028 V= 0016

Momentum spread pp 007 +- 20

extractions per cycle 2 separated by 50 ms

Batch length [s] 105

of bunches per pulse 2100

Intensity per extraction [1013 p] 24

Bunch length [ns] (4) 2

Bunch spacing [ns] 5

Beta at focus [m] hor 10 vert 20

Beam sizes at 400 GeV [mm] 05 mm

Beam divergence [mrad] hor 005 vert 003

CNGS Proton Beam Parameters

Expected beam performance 45 x 1019 protonsyear on target

500kW beam power

CNGS Facility ndash Layout and Main Parameters

BENE08 2 Dec 2008E Gschwendtner ABATB

7

CNGS Target13 graphite rods each 10cm long

Oslash = 5mm andor 4mm

27mm interaction length

Ten targets (+1 prototype) have been built Assembled in two magazines

Target magazine 1 unit used 4 in-situ spares CNGS Facility ndash Layout

BENE08 2 Dec 2008E Gschwendtner ABATB

8

CNGS Horn and Reflector

bull 150kA180kA pulsedbull 7m long inner conductor 18mm thickbull Designed for 2107 pulsesbull Water cooling to evacuate 26kWbull 1 spare horn (no reflector yet)

Design featuresbull Water cooling circuit

ndash In situ spare easy switchbull ltlt1mSv total dose after 1y beam 1w stop

ndash Remote water connectionbull Remote handling amp electrical connections

ndash ltlt 1mSv total dose after 1y beam 1m stopbull Remote and quick polarity change

035 m

inner conductor

CNGS Facility ndash Layout and Main Parameters

BENE08 2 Dec 2008E Gschwendtner ABATB

9

60cm

270cm

1125cm

bull 2 x 41 fixed monitors (Ionization Chambers)

bull 2 x 1 movable monitor

LHC type Beam Loss Monitorsbull Stainless steel cylinder bull Al electrodes 05cm separation

bull N2 gas filling

CNGS

bull Muon Intensityndash Up to 8 107 cm2105s

CNGS Facility ndash Layout and Main Parameters

Muon Monitors

BENE08 2 Dec 2008E Gschwendtner ABATB

10

Radiation Issues - 2007 CNGS Run

bull During CNGS run 2007 ndash Failure in ventilation system installed in the

CNGS Service gallery due to radiation effects in electronics (SEU ndash Single Event Upsets- due to high energy hadron fluence) radiation levels predicted by simulations too high for off the shelf components -COTS

High-energy (gt20MeV) hadrons fluence (hcm2) for 45E19 pots

CNGS no surface building above CNGS target area large fraction of electronics in tunnel area

Ventilation units in the service gallery

CNGS Facility ndash Startup Issues

A Ferrari L Sarchiapone et al FLUKA simulations 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

11

Modifications in Shutdown 200708 due to Radiation Issues

1 Move as much electronics as possible out of CNGS tunnel area2 Create radiation safe area for electronics which needs to stay in CNGS3 Add shielding concrete walls up to 6m thick in total ~53m3 concrete

ndash Movable shielding plugs in TSG4 and TSG41 remotely controlled connected to access system will be opened before any access to CNGS is granted

ndash Bypass of ventilation ducts decrease radiation by up to a factor 106

Side effectndash CNGS triggered a large campaign for rad-hardness for LHCndash CNGS serves as test bed for parasitic irradiations of LHC and others

Target Chamber

ServiceGallery

Proton Beam Line target horn He tube 1 reflector He tube 2 decay tube

hellipelectronics equipment

Radiation lsquosafersquo area for electronics

TCV4

Parasitic LHC Radiation Test Facility

CNGS Facility ndash Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

12

Photo Gallery- Motorized Shielding PlugsPPP-TSG415 tons moves on 6 slope

PPP-TSG4120 tons moves on flat surface

Plugs connected to access system and remotely controlledOpen before an access to CNGS is granted

CNGS Facility ndash Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

13

Junction to Target Chamber

2007

2008

View from ventilation chamber into target chamber

2008

CNGS Facility ndash Startup Issues ndash Photo Gallery

2008

BENE08 2 Dec 2008E Gschwendtner ABATB

14

ABMB 14 Oct 2008E Gschwendtner ABATB

14

target

muon detectors pit 1

muon detectors pit 2

BENE08 2 Dec 2008E Gschwendtner ABATB

15

CNGS Polarity Puzzle

bull Observation of asymmetry in horizontal direction between

ndash Neutrino (focusing of mesons with positive charge)

ndash Anti-neutrino (focusing of mesons with negative charge)

270cm

1125cm

Muon DetectorMuon detectors very sensitive to any beam change ndashgive online feedback for neutrino beam quality

CNGS Facility ndash Beam Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

16

CNGS Polarity PuzzleExplanation Earth magnetic field in 1km long decay tube

ndash calculate B components in CNGS reference systemndash Partially shielding of magnetic field due to decay tube steel Results in shifts of the observed magnitude Measurements and simulations agree very well (absolute comparison within

5 in first muon pit)

Lines simulated fluxPoints measurementsNormalized to max=1

NeutrinoFocusing on

positive charge

Anti-neutrino Focusing on

negative charge

FL

UK

A s

imu

lati

on

s P

Sal

a et

al 2

008

CNGS Facility ndash Beam Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

17

CNGS 2008 Performance and Results

BENE08 2 Dec 2008E Gschwendtner ABATB

18

CNGS Run 2008

Excellent performance of the CNGS FacilityCNGS modifications finished successfully

bull no radiation problemseffects in the electronics during the entire run 2008

bull excellent hornreflector performance during 2008 run

Beam line equipment bull Working well and stable (target horns detectorshellip)

18 June ndash 3 November 2008 178middot1019 protons on target

OPERA experimentndash 10100 on-time eventsndash 1700 candidate interactions in bricks

CNGS Facility ndash Performance 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

19

Supercycle48s supercycleNorth Area 3 CNGS 1LHC1MD 375 CNGS duty cycle

504s supercycle7 CNGS 1 LHC 83 CNGS duty cycle

SFTPRO 3xCNGS LHC MD 4x CNGS2xCNGS MTECNGS

LHC

CNGS Facility ndash Performance 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

20

CNGS Run 2008 18 June- 03 Nov 2008

0

2E+18

4E+18

6E+18

8E+18

1E+19

12E+19

14E+19

16E+19

18E+19

18-J

un

28-J

un

8-J

ul

18-J

ul

28-J

ul

7-A

ug

17-A

ug

27-A

ug

6-S

ep

16-S

ep

26-S

ep

6-O

ct

16-O

ct

26-O

ct

5-N

ov

inte

gra

ted

po

t

Total 1781019 pot

18kV cable repair

MD

PS magnet exchange septum bakeout

MD

SPS timing faultvacuum leak amp magnet exchange

CNGS maintenance

SPS extraction line Magnet ground fault MD

CNGS maintenance

CNGS Facility ndash Performance 2008

Nominal 45 1019 potyr for 5 years

Beam to CNGSLHC FT MD

Beam to CNGSLHC FT

Beam to CNGS MD

BENE08 2 Dec 2008E Gschwendtner ABATB

21

SPS Efficiency for CNGSCNGS Facility ndash Performance 2008

Integrated efficiency 6094

BENE08 2 Dec 2008E Gschwendtner ABATB

22

Beam Intensity

SPS beam intensityextraction

Error rms spread

RF problems

Number of extractions during 2008 run

Almost 1 million - 995000

Intensity limitsbull Losses in the PSbull SPS RF

Typical transmission of the CNGS beam through the SPS cycle ~ 92Injection losses ~ 6

CNGS Facility ndash Performance 2008

Proton beam data courtesy of J Wenninger

BENE08 2 Dec 2008E Gschwendtner ABATB

23

Beam StabilityTarget Beam Positionbull Excellent position stability ~50microns over entire runbull No active position feedback is necessary

ndash 1-2 small steeringsweek only

CNGS Facility ndash Performance 2008

Beam Stability seen in Muon Monitorsbull Position stability of muon beam in pit 2 is ~3cm rmsbull Beam position correlated to beam position on target

ndash Parallel displacement of primary beam on T40

-8

-7

-6

-5

-4

-3

-2

-1

0

1

2

3

10

29

00

0

10

29

02

8

10

29

05

7

10

29

12

6

10

29

15

5

10

29

22

4

10

29

25

2

10

29

32

1

10

29

35

0

10

29

41

9

10

29

44

8

10

29

51

6

10

29

54

5

10

29

61

4

10

29

64

3

cm

5cm shift of muon profile centroid

~80m parallel beam shift

Centroid of horizontal profile pit2

BENE08 2 Dec 2008E Gschwendtner ABATB

24

Muon Monitors Measurements vs Simulations

Excellent agreement

CNGS Facility ndash Performance 2008

pit 1 Horizontal

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 1

pit 1 Vertical

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Vertical Profile Pit 1 pit 2 Vertical

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Vertical Profile Pit 2

pit 2 Horizontal

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 2

P

Sal

a et

al

FLU

KA

sim

ulat

ion

s 20

08

MeasurementsSimulations

BENE08 2 Dec 2008E Gschwendtner ABATB

25

OPERA

BENE08 2 Dec 2008E Gschwendtner ABATB

26

bull Total target massndash 12 kton146621 emulsion-lead bricks

bull 2 super modules ndash Spectrometer 22 RPC planes in

magnetic field (15T) 6 Drift tube planes

ndash Target 27 lead emulsion brick walls alternated with scintillator planes

The OPERA DetectorOPERA Detector

BENE08 2 Dec 2008E Gschwendtner ABATB

27

OPERA Results 2008bull 10100 on-time eventsbull 1700 candidate interactions in bricks

Handling of 100 bricksweek

Up to 65 CSd scannedweek

CS delivered to the Scanning Stations

CS scanned

CS with a positive results

OPERA Results

Courtesy of D Autiero

BENE08 2 Dec 2008E Gschwendtner ABATB

28

Backward going charged particle(interesting as will allow to benchmark the MC simulation of back-scattering)

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

29

Outlook 2009bull 2009 Schedule CNGS physics start on 7 May 2009 total 175 days

Outlook

Protons on target in 2009 ~27middot1019 to ~5middot1019 potyr

Depends mainly on bull CNGS duty cyclebull beam intensityextraction

BENE08 2 Dec 2008E Gschwendtner ABATB

30

Multi-Turn-Extractionbull Novel extraction scheme from PS to SPS

ndash Beam is separated in the transverse phase space usingbull Nonlinear magnetic elements (sextupoles and octupoles) to create stable islandsbull Slow (adiabatic) tune-variation to cross an appropriate resonance

ndash Beneficial effectsbull No mechanical device to slice the beam losses are reducedbull The phase space matching is improved bull The beamlets have the same emittance and optical parameters

Five beamlets separated by 1 PS turn

Result of the first extraction test in the PS extraction line (TT2) with one bunch

Courtesy MTE project - M Giovannozzi et al

Evolution of the horizontal beam distribution during the splitting

MTE extracted beam has been provided to the SPS for the last night of CNGS run2009 Start with classical extraction parallel prepare MTE provide first SFTPRO then CNGS

Outlook

BENE08 2 Dec 2008E Gschwendtner ABATB

31

Summarybull Start-up issues of CNGS have been

overcomendash a lot of work

bull CNGS 2008 run was very successfulndash 178 1019 pot ndash 1700 candidate events in OPERAndash exploring limits of CNGS facility

bull 2009 ndash full year of high intensity operationndash First tau neutrino events

BENE08 2 Dec 2008E Gschwendtner ABATB

32

Thank You to all the colleagues for their effort to make CNGS a

success this year

AB Department TS Department SCRPCNGS Secondary Beam Working Group MTE Project Team

BENE08 2 Dec 2008E Gschwendtner ABATB

33

CNGS Radiation SimulationsHigh-E (gt20 MeV) hadron fluence for a nominal year (45 E19 pot)

A

Fe

rra

ri

L

Sa

rch

iap

on

e e

t a

l F

LU

KA

sim

ula

tio

ns

20

08

CNGS Facility ndash Startup Issues

Dose in Gray for a nominal year (45 E19 pot)

2007 no shielding

2008++lt 10 Gry

F 106

~10 Gry2007 no shielding

F 104

lt 106 hcm2yr2008++

~1010 hcm2yr

BENE08 2 Dec 2008E Gschwendtner ABATB

34

3 prong vertex in the bottom layer of the emulsion

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

35

kink=0204 rad

Event GalleryOPERA Results

Other particles with very short life-time Charmed mesons produced by interactions Can contribute to background in case the muon from charm decay is missed

21 expected charm events during 2007-2008Seen 2 charm-like topologies

D+

neutrals

- (undetected)

h+

  • CNGS Operation Results 2008
  • Slide 2
  • CERN Neutrinos to Gran Sasso
  • CNGS Timeline
  • CNGS Conventional Neutrino Beams
  • CNGS Proton Beam Parameters
  • CNGS Target
  • CNGS Horn and Reflector
  • Muon Monitors
  • Radiation Issues - 2007 CNGS Run
  • Modifications in Shutdown 200708 due to Radiation Issues
  • Photo Gallery- Motorized Shielding Plugs
  • Junction to Target Chamber
  • Slide 14
  • CNGS Polarity Puzzle
  • Slide 16
  • CNGS 2008 Performance and Results
  • CNGS Run 2008
  • Supercycle
  • CNGS Run 2008 18 June- 03 Nov 2008
  • SPS Efficiency for CNGS
  • Beam Intensity
  • Beam Stability
  • Muon Monitors Measurements vs Simulations
  • OPERA
  • The OPERA Detector
  • OPERA Results 2008
  • Slide 28
  • Outlook 2009
  • Multi-Turn-Extraction
  • Summary
  • Slide 32
  • CNGS Radiation Simulations
  • Event Gallery
  • Slide 35
Page 2: CNGS Operation Results 2008 Edda Gschwendtner AB/ATB on behalf of the CNGS team.

BENE08 2 Dec 2008E Gschwendtner ABATB

2

E Gschwendtner ABATB

2

bull Introductionbull CNGS Facility

ndash Layout and Main Parametersndash Startup Issuesndash 2008 Performance

bull Highlights from the OPERA Experimentbull Outlook for 2009bull Summary

Outline

BENE08 2 Dec 2008E Gschwendtner ABATB

3

CERN Neutrinos to Gran SassoIntroduction

Experiments OPERA (1200 ton) ICARUS (600 ton)

~1 observed interaction with 21019 pot

451019 potyear (200 days nominal intensity)

221017 potday ~1017 day ~1011 day at detector in Gran Sasso

3600 interactionsyear in OPERA (charged current interactions)

2-3 interactions detectedyear in OPERA

CNGS Run 2008 1781019 pot

long base-line appearance experimentbull Produce muon neutrino beam at CERNbull Measure tau neutrinos in Gran Sasso Italy (732km)

CERN

Gran Sasso

BENE08 2 Dec 2008E Gschwendtner ABATB

4

CNGS Timeline2000-2005

Civil Engineering amp Installation

CERN

10 July-27 Oct

2006

Beam Commissioning CERN

008 1019 potDetector electronics commissioning

Gran Sasso

Shutdown

2006-2007Reflector Water Leak RepairImprovement

CERN

17 Sept-20 Oct

2007

Beam Commissioning at high intensity

CERN

008 1019potDetector commissioning with 60000 bricks

Gran Sasso

Shutdown

2007-2008

Additional shielding and electronics re-arrangement

CERN

Finishing OPERA bricks Gran Sasso

18 June-3 Nov 2008

CNGS Physics Run 178 1019pot

Introduction

BENE08 2 Dec 2008E Gschwendtner ABATB

5

434m100m

1095m 18m 5m 5m67m

27m

TBID

CNGS Conventional Neutrino Beams

p + C (interactions) K+ (decay in flight)

Produce pions and Kaons to make neutrinos

CNGS Facility ndash Layout and Main Parameters

targetmagnetichorns

decay tunnel

hadron absorber

muon detector pit 1

muon detector pit 2

BENE08 2 Dec 2008E Gschwendtner ABATB

6

Beam parameters Nominal CNGS beam

Nominal energy [GeV] 400

Normalized emittance [m] H=12 V=7

Emittance [m] H=0028 V= 0016

Momentum spread pp 007 +- 20

extractions per cycle 2 separated by 50 ms

Batch length [s] 105

of bunches per pulse 2100

Intensity per extraction [1013 p] 24

Bunch length [ns] (4) 2

Bunch spacing [ns] 5

Beta at focus [m] hor 10 vert 20

Beam sizes at 400 GeV [mm] 05 mm

Beam divergence [mrad] hor 005 vert 003

CNGS Proton Beam Parameters

Expected beam performance 45 x 1019 protonsyear on target

500kW beam power

CNGS Facility ndash Layout and Main Parameters

BENE08 2 Dec 2008E Gschwendtner ABATB

7

CNGS Target13 graphite rods each 10cm long

Oslash = 5mm andor 4mm

27mm interaction length

Ten targets (+1 prototype) have been built Assembled in two magazines

Target magazine 1 unit used 4 in-situ spares CNGS Facility ndash Layout

BENE08 2 Dec 2008E Gschwendtner ABATB

8

CNGS Horn and Reflector

bull 150kA180kA pulsedbull 7m long inner conductor 18mm thickbull Designed for 2107 pulsesbull Water cooling to evacuate 26kWbull 1 spare horn (no reflector yet)

Design featuresbull Water cooling circuit

ndash In situ spare easy switchbull ltlt1mSv total dose after 1y beam 1w stop

ndash Remote water connectionbull Remote handling amp electrical connections

ndash ltlt 1mSv total dose after 1y beam 1m stopbull Remote and quick polarity change

035 m

inner conductor

CNGS Facility ndash Layout and Main Parameters

BENE08 2 Dec 2008E Gschwendtner ABATB

9

60cm

270cm

1125cm

bull 2 x 41 fixed monitors (Ionization Chambers)

bull 2 x 1 movable monitor

LHC type Beam Loss Monitorsbull Stainless steel cylinder bull Al electrodes 05cm separation

bull N2 gas filling

CNGS

bull Muon Intensityndash Up to 8 107 cm2105s

CNGS Facility ndash Layout and Main Parameters

Muon Monitors

BENE08 2 Dec 2008E Gschwendtner ABATB

10

Radiation Issues - 2007 CNGS Run

bull During CNGS run 2007 ndash Failure in ventilation system installed in the

CNGS Service gallery due to radiation effects in electronics (SEU ndash Single Event Upsets- due to high energy hadron fluence) radiation levels predicted by simulations too high for off the shelf components -COTS

High-energy (gt20MeV) hadrons fluence (hcm2) for 45E19 pots

CNGS no surface building above CNGS target area large fraction of electronics in tunnel area

Ventilation units in the service gallery

CNGS Facility ndash Startup Issues

A Ferrari L Sarchiapone et al FLUKA simulations 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

11

Modifications in Shutdown 200708 due to Radiation Issues

1 Move as much electronics as possible out of CNGS tunnel area2 Create radiation safe area for electronics which needs to stay in CNGS3 Add shielding concrete walls up to 6m thick in total ~53m3 concrete

ndash Movable shielding plugs in TSG4 and TSG41 remotely controlled connected to access system will be opened before any access to CNGS is granted

ndash Bypass of ventilation ducts decrease radiation by up to a factor 106

Side effectndash CNGS triggered a large campaign for rad-hardness for LHCndash CNGS serves as test bed for parasitic irradiations of LHC and others

Target Chamber

ServiceGallery

Proton Beam Line target horn He tube 1 reflector He tube 2 decay tube

hellipelectronics equipment

Radiation lsquosafersquo area for electronics

TCV4

Parasitic LHC Radiation Test Facility

CNGS Facility ndash Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

12

Photo Gallery- Motorized Shielding PlugsPPP-TSG415 tons moves on 6 slope

PPP-TSG4120 tons moves on flat surface

Plugs connected to access system and remotely controlledOpen before an access to CNGS is granted

CNGS Facility ndash Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

13

Junction to Target Chamber

2007

2008

View from ventilation chamber into target chamber

2008

CNGS Facility ndash Startup Issues ndash Photo Gallery

2008

BENE08 2 Dec 2008E Gschwendtner ABATB

14

ABMB 14 Oct 2008E Gschwendtner ABATB

14

target

muon detectors pit 1

muon detectors pit 2

BENE08 2 Dec 2008E Gschwendtner ABATB

15

CNGS Polarity Puzzle

bull Observation of asymmetry in horizontal direction between

ndash Neutrino (focusing of mesons with positive charge)

ndash Anti-neutrino (focusing of mesons with negative charge)

270cm

1125cm

Muon DetectorMuon detectors very sensitive to any beam change ndashgive online feedback for neutrino beam quality

CNGS Facility ndash Beam Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

16

CNGS Polarity PuzzleExplanation Earth magnetic field in 1km long decay tube

ndash calculate B components in CNGS reference systemndash Partially shielding of magnetic field due to decay tube steel Results in shifts of the observed magnitude Measurements and simulations agree very well (absolute comparison within

5 in first muon pit)

Lines simulated fluxPoints measurementsNormalized to max=1

NeutrinoFocusing on

positive charge

Anti-neutrino Focusing on

negative charge

FL

UK

A s

imu

lati

on

s P

Sal

a et

al 2

008

CNGS Facility ndash Beam Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

17

CNGS 2008 Performance and Results

BENE08 2 Dec 2008E Gschwendtner ABATB

18

CNGS Run 2008

Excellent performance of the CNGS FacilityCNGS modifications finished successfully

bull no radiation problemseffects in the electronics during the entire run 2008

bull excellent hornreflector performance during 2008 run

Beam line equipment bull Working well and stable (target horns detectorshellip)

18 June ndash 3 November 2008 178middot1019 protons on target

OPERA experimentndash 10100 on-time eventsndash 1700 candidate interactions in bricks

CNGS Facility ndash Performance 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

19

Supercycle48s supercycleNorth Area 3 CNGS 1LHC1MD 375 CNGS duty cycle

504s supercycle7 CNGS 1 LHC 83 CNGS duty cycle

SFTPRO 3xCNGS LHC MD 4x CNGS2xCNGS MTECNGS

LHC

CNGS Facility ndash Performance 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

20

CNGS Run 2008 18 June- 03 Nov 2008

0

2E+18

4E+18

6E+18

8E+18

1E+19

12E+19

14E+19

16E+19

18E+19

18-J

un

28-J

un

8-J

ul

18-J

ul

28-J

ul

7-A

ug

17-A

ug

27-A

ug

6-S

ep

16-S

ep

26-S

ep

6-O

ct

16-O

ct

26-O

ct

5-N

ov

inte

gra

ted

po

t

Total 1781019 pot

18kV cable repair

MD

PS magnet exchange septum bakeout

MD

SPS timing faultvacuum leak amp magnet exchange

CNGS maintenance

SPS extraction line Magnet ground fault MD

CNGS maintenance

CNGS Facility ndash Performance 2008

Nominal 45 1019 potyr for 5 years

Beam to CNGSLHC FT MD

Beam to CNGSLHC FT

Beam to CNGS MD

BENE08 2 Dec 2008E Gschwendtner ABATB

21

SPS Efficiency for CNGSCNGS Facility ndash Performance 2008

Integrated efficiency 6094

BENE08 2 Dec 2008E Gschwendtner ABATB

22

Beam Intensity

SPS beam intensityextraction

Error rms spread

RF problems

Number of extractions during 2008 run

Almost 1 million - 995000

Intensity limitsbull Losses in the PSbull SPS RF

Typical transmission of the CNGS beam through the SPS cycle ~ 92Injection losses ~ 6

CNGS Facility ndash Performance 2008

Proton beam data courtesy of J Wenninger

BENE08 2 Dec 2008E Gschwendtner ABATB

23

Beam StabilityTarget Beam Positionbull Excellent position stability ~50microns over entire runbull No active position feedback is necessary

ndash 1-2 small steeringsweek only

CNGS Facility ndash Performance 2008

Beam Stability seen in Muon Monitorsbull Position stability of muon beam in pit 2 is ~3cm rmsbull Beam position correlated to beam position on target

ndash Parallel displacement of primary beam on T40

-8

-7

-6

-5

-4

-3

-2

-1

0

1

2

3

10

29

00

0

10

29

02

8

10

29

05

7

10

29

12

6

10

29

15

5

10

29

22

4

10

29

25

2

10

29

32

1

10

29

35

0

10

29

41

9

10

29

44

8

10

29

51

6

10

29

54

5

10

29

61

4

10

29

64

3

cm

5cm shift of muon profile centroid

~80m parallel beam shift

Centroid of horizontal profile pit2

BENE08 2 Dec 2008E Gschwendtner ABATB

24

Muon Monitors Measurements vs Simulations

Excellent agreement

CNGS Facility ndash Performance 2008

pit 1 Horizontal

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 1

pit 1 Vertical

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Vertical Profile Pit 1 pit 2 Vertical

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Vertical Profile Pit 2

pit 2 Horizontal

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 2

P

Sal

a et

al

FLU

KA

sim

ulat

ion

s 20

08

MeasurementsSimulations

BENE08 2 Dec 2008E Gschwendtner ABATB

25

OPERA

BENE08 2 Dec 2008E Gschwendtner ABATB

26

bull Total target massndash 12 kton146621 emulsion-lead bricks

bull 2 super modules ndash Spectrometer 22 RPC planes in

magnetic field (15T) 6 Drift tube planes

ndash Target 27 lead emulsion brick walls alternated with scintillator planes

The OPERA DetectorOPERA Detector

BENE08 2 Dec 2008E Gschwendtner ABATB

27

OPERA Results 2008bull 10100 on-time eventsbull 1700 candidate interactions in bricks

Handling of 100 bricksweek

Up to 65 CSd scannedweek

CS delivered to the Scanning Stations

CS scanned

CS with a positive results

OPERA Results

Courtesy of D Autiero

BENE08 2 Dec 2008E Gschwendtner ABATB

28

Backward going charged particle(interesting as will allow to benchmark the MC simulation of back-scattering)

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

29

Outlook 2009bull 2009 Schedule CNGS physics start on 7 May 2009 total 175 days

Outlook

Protons on target in 2009 ~27middot1019 to ~5middot1019 potyr

Depends mainly on bull CNGS duty cyclebull beam intensityextraction

BENE08 2 Dec 2008E Gschwendtner ABATB

30

Multi-Turn-Extractionbull Novel extraction scheme from PS to SPS

ndash Beam is separated in the transverse phase space usingbull Nonlinear magnetic elements (sextupoles and octupoles) to create stable islandsbull Slow (adiabatic) tune-variation to cross an appropriate resonance

ndash Beneficial effectsbull No mechanical device to slice the beam losses are reducedbull The phase space matching is improved bull The beamlets have the same emittance and optical parameters

Five beamlets separated by 1 PS turn

Result of the first extraction test in the PS extraction line (TT2) with one bunch

Courtesy MTE project - M Giovannozzi et al

Evolution of the horizontal beam distribution during the splitting

MTE extracted beam has been provided to the SPS for the last night of CNGS run2009 Start with classical extraction parallel prepare MTE provide first SFTPRO then CNGS

Outlook

BENE08 2 Dec 2008E Gschwendtner ABATB

31

Summarybull Start-up issues of CNGS have been

overcomendash a lot of work

bull CNGS 2008 run was very successfulndash 178 1019 pot ndash 1700 candidate events in OPERAndash exploring limits of CNGS facility

bull 2009 ndash full year of high intensity operationndash First tau neutrino events

BENE08 2 Dec 2008E Gschwendtner ABATB

32

Thank You to all the colleagues for their effort to make CNGS a

success this year

AB Department TS Department SCRPCNGS Secondary Beam Working Group MTE Project Team

BENE08 2 Dec 2008E Gschwendtner ABATB

33

CNGS Radiation SimulationsHigh-E (gt20 MeV) hadron fluence for a nominal year (45 E19 pot)

A

Fe

rra

ri

L

Sa

rch

iap

on

e e

t a

l F

LU

KA

sim

ula

tio

ns

20

08

CNGS Facility ndash Startup Issues

Dose in Gray for a nominal year (45 E19 pot)

2007 no shielding

2008++lt 10 Gry

F 106

~10 Gry2007 no shielding

F 104

lt 106 hcm2yr2008++

~1010 hcm2yr

BENE08 2 Dec 2008E Gschwendtner ABATB

34

3 prong vertex in the bottom layer of the emulsion

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

35

kink=0204 rad

Event GalleryOPERA Results

Other particles with very short life-time Charmed mesons produced by interactions Can contribute to background in case the muon from charm decay is missed

21 expected charm events during 2007-2008Seen 2 charm-like topologies

D+

neutrals

- (undetected)

h+

  • CNGS Operation Results 2008
  • Slide 2
  • CERN Neutrinos to Gran Sasso
  • CNGS Timeline
  • CNGS Conventional Neutrino Beams
  • CNGS Proton Beam Parameters
  • CNGS Target
  • CNGS Horn and Reflector
  • Muon Monitors
  • Radiation Issues - 2007 CNGS Run
  • Modifications in Shutdown 200708 due to Radiation Issues
  • Photo Gallery- Motorized Shielding Plugs
  • Junction to Target Chamber
  • Slide 14
  • CNGS Polarity Puzzle
  • Slide 16
  • CNGS 2008 Performance and Results
  • CNGS Run 2008
  • Supercycle
  • CNGS Run 2008 18 June- 03 Nov 2008
  • SPS Efficiency for CNGS
  • Beam Intensity
  • Beam Stability
  • Muon Monitors Measurements vs Simulations
  • OPERA
  • The OPERA Detector
  • OPERA Results 2008
  • Slide 28
  • Outlook 2009
  • Multi-Turn-Extraction
  • Summary
  • Slide 32
  • CNGS Radiation Simulations
  • Event Gallery
  • Slide 35
Page 3: CNGS Operation Results 2008 Edda Gschwendtner AB/ATB on behalf of the CNGS team.

BENE08 2 Dec 2008E Gschwendtner ABATB

3

CERN Neutrinos to Gran SassoIntroduction

Experiments OPERA (1200 ton) ICARUS (600 ton)

~1 observed interaction with 21019 pot

451019 potyear (200 days nominal intensity)

221017 potday ~1017 day ~1011 day at detector in Gran Sasso

3600 interactionsyear in OPERA (charged current interactions)

2-3 interactions detectedyear in OPERA

CNGS Run 2008 1781019 pot

long base-line appearance experimentbull Produce muon neutrino beam at CERNbull Measure tau neutrinos in Gran Sasso Italy (732km)

CERN

Gran Sasso

BENE08 2 Dec 2008E Gschwendtner ABATB

4

CNGS Timeline2000-2005

Civil Engineering amp Installation

CERN

10 July-27 Oct

2006

Beam Commissioning CERN

008 1019 potDetector electronics commissioning

Gran Sasso

Shutdown

2006-2007Reflector Water Leak RepairImprovement

CERN

17 Sept-20 Oct

2007

Beam Commissioning at high intensity

CERN

008 1019potDetector commissioning with 60000 bricks

Gran Sasso

Shutdown

2007-2008

Additional shielding and electronics re-arrangement

CERN

Finishing OPERA bricks Gran Sasso

18 June-3 Nov 2008

CNGS Physics Run 178 1019pot

Introduction

BENE08 2 Dec 2008E Gschwendtner ABATB

5

434m100m

1095m 18m 5m 5m67m

27m

TBID

CNGS Conventional Neutrino Beams

p + C (interactions) K+ (decay in flight)

Produce pions and Kaons to make neutrinos

CNGS Facility ndash Layout and Main Parameters

targetmagnetichorns

decay tunnel

hadron absorber

muon detector pit 1

muon detector pit 2

BENE08 2 Dec 2008E Gschwendtner ABATB

6

Beam parameters Nominal CNGS beam

Nominal energy [GeV] 400

Normalized emittance [m] H=12 V=7

Emittance [m] H=0028 V= 0016

Momentum spread pp 007 +- 20

extractions per cycle 2 separated by 50 ms

Batch length [s] 105

of bunches per pulse 2100

Intensity per extraction [1013 p] 24

Bunch length [ns] (4) 2

Bunch spacing [ns] 5

Beta at focus [m] hor 10 vert 20

Beam sizes at 400 GeV [mm] 05 mm

Beam divergence [mrad] hor 005 vert 003

CNGS Proton Beam Parameters

Expected beam performance 45 x 1019 protonsyear on target

500kW beam power

CNGS Facility ndash Layout and Main Parameters

BENE08 2 Dec 2008E Gschwendtner ABATB

7

CNGS Target13 graphite rods each 10cm long

Oslash = 5mm andor 4mm

27mm interaction length

Ten targets (+1 prototype) have been built Assembled in two magazines

Target magazine 1 unit used 4 in-situ spares CNGS Facility ndash Layout

BENE08 2 Dec 2008E Gschwendtner ABATB

8

CNGS Horn and Reflector

bull 150kA180kA pulsedbull 7m long inner conductor 18mm thickbull Designed for 2107 pulsesbull Water cooling to evacuate 26kWbull 1 spare horn (no reflector yet)

Design featuresbull Water cooling circuit

ndash In situ spare easy switchbull ltlt1mSv total dose after 1y beam 1w stop

ndash Remote water connectionbull Remote handling amp electrical connections

ndash ltlt 1mSv total dose after 1y beam 1m stopbull Remote and quick polarity change

035 m

inner conductor

CNGS Facility ndash Layout and Main Parameters

BENE08 2 Dec 2008E Gschwendtner ABATB

9

60cm

270cm

1125cm

bull 2 x 41 fixed monitors (Ionization Chambers)

bull 2 x 1 movable monitor

LHC type Beam Loss Monitorsbull Stainless steel cylinder bull Al electrodes 05cm separation

bull N2 gas filling

CNGS

bull Muon Intensityndash Up to 8 107 cm2105s

CNGS Facility ndash Layout and Main Parameters

Muon Monitors

BENE08 2 Dec 2008E Gschwendtner ABATB

10

Radiation Issues - 2007 CNGS Run

bull During CNGS run 2007 ndash Failure in ventilation system installed in the

CNGS Service gallery due to radiation effects in electronics (SEU ndash Single Event Upsets- due to high energy hadron fluence) radiation levels predicted by simulations too high for off the shelf components -COTS

High-energy (gt20MeV) hadrons fluence (hcm2) for 45E19 pots

CNGS no surface building above CNGS target area large fraction of electronics in tunnel area

Ventilation units in the service gallery

CNGS Facility ndash Startup Issues

A Ferrari L Sarchiapone et al FLUKA simulations 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

11

Modifications in Shutdown 200708 due to Radiation Issues

1 Move as much electronics as possible out of CNGS tunnel area2 Create radiation safe area for electronics which needs to stay in CNGS3 Add shielding concrete walls up to 6m thick in total ~53m3 concrete

ndash Movable shielding plugs in TSG4 and TSG41 remotely controlled connected to access system will be opened before any access to CNGS is granted

ndash Bypass of ventilation ducts decrease radiation by up to a factor 106

Side effectndash CNGS triggered a large campaign for rad-hardness for LHCndash CNGS serves as test bed for parasitic irradiations of LHC and others

Target Chamber

ServiceGallery

Proton Beam Line target horn He tube 1 reflector He tube 2 decay tube

hellipelectronics equipment

Radiation lsquosafersquo area for electronics

TCV4

Parasitic LHC Radiation Test Facility

CNGS Facility ndash Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

12

Photo Gallery- Motorized Shielding PlugsPPP-TSG415 tons moves on 6 slope

PPP-TSG4120 tons moves on flat surface

Plugs connected to access system and remotely controlledOpen before an access to CNGS is granted

CNGS Facility ndash Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

13

Junction to Target Chamber

2007

2008

View from ventilation chamber into target chamber

2008

CNGS Facility ndash Startup Issues ndash Photo Gallery

2008

BENE08 2 Dec 2008E Gschwendtner ABATB

14

ABMB 14 Oct 2008E Gschwendtner ABATB

14

target

muon detectors pit 1

muon detectors pit 2

BENE08 2 Dec 2008E Gschwendtner ABATB

15

CNGS Polarity Puzzle

bull Observation of asymmetry in horizontal direction between

ndash Neutrino (focusing of mesons with positive charge)

ndash Anti-neutrino (focusing of mesons with negative charge)

270cm

1125cm

Muon DetectorMuon detectors very sensitive to any beam change ndashgive online feedback for neutrino beam quality

CNGS Facility ndash Beam Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

16

CNGS Polarity PuzzleExplanation Earth magnetic field in 1km long decay tube

ndash calculate B components in CNGS reference systemndash Partially shielding of magnetic field due to decay tube steel Results in shifts of the observed magnitude Measurements and simulations agree very well (absolute comparison within

5 in first muon pit)

Lines simulated fluxPoints measurementsNormalized to max=1

NeutrinoFocusing on

positive charge

Anti-neutrino Focusing on

negative charge

FL

UK

A s

imu

lati

on

s P

Sal

a et

al 2

008

CNGS Facility ndash Beam Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

17

CNGS 2008 Performance and Results

BENE08 2 Dec 2008E Gschwendtner ABATB

18

CNGS Run 2008

Excellent performance of the CNGS FacilityCNGS modifications finished successfully

bull no radiation problemseffects in the electronics during the entire run 2008

bull excellent hornreflector performance during 2008 run

Beam line equipment bull Working well and stable (target horns detectorshellip)

18 June ndash 3 November 2008 178middot1019 protons on target

OPERA experimentndash 10100 on-time eventsndash 1700 candidate interactions in bricks

CNGS Facility ndash Performance 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

19

Supercycle48s supercycleNorth Area 3 CNGS 1LHC1MD 375 CNGS duty cycle

504s supercycle7 CNGS 1 LHC 83 CNGS duty cycle

SFTPRO 3xCNGS LHC MD 4x CNGS2xCNGS MTECNGS

LHC

CNGS Facility ndash Performance 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

20

CNGS Run 2008 18 June- 03 Nov 2008

0

2E+18

4E+18

6E+18

8E+18

1E+19

12E+19

14E+19

16E+19

18E+19

18-J

un

28-J

un

8-J

ul

18-J

ul

28-J

ul

7-A

ug

17-A

ug

27-A

ug

6-S

ep

16-S

ep

26-S

ep

6-O

ct

16-O

ct

26-O

ct

5-N

ov

inte

gra

ted

po

t

Total 1781019 pot

18kV cable repair

MD

PS magnet exchange septum bakeout

MD

SPS timing faultvacuum leak amp magnet exchange

CNGS maintenance

SPS extraction line Magnet ground fault MD

CNGS maintenance

CNGS Facility ndash Performance 2008

Nominal 45 1019 potyr for 5 years

Beam to CNGSLHC FT MD

Beam to CNGSLHC FT

Beam to CNGS MD

BENE08 2 Dec 2008E Gschwendtner ABATB

21

SPS Efficiency for CNGSCNGS Facility ndash Performance 2008

Integrated efficiency 6094

BENE08 2 Dec 2008E Gschwendtner ABATB

22

Beam Intensity

SPS beam intensityextraction

Error rms spread

RF problems

Number of extractions during 2008 run

Almost 1 million - 995000

Intensity limitsbull Losses in the PSbull SPS RF

Typical transmission of the CNGS beam through the SPS cycle ~ 92Injection losses ~ 6

CNGS Facility ndash Performance 2008

Proton beam data courtesy of J Wenninger

BENE08 2 Dec 2008E Gschwendtner ABATB

23

Beam StabilityTarget Beam Positionbull Excellent position stability ~50microns over entire runbull No active position feedback is necessary

ndash 1-2 small steeringsweek only

CNGS Facility ndash Performance 2008

Beam Stability seen in Muon Monitorsbull Position stability of muon beam in pit 2 is ~3cm rmsbull Beam position correlated to beam position on target

ndash Parallel displacement of primary beam on T40

-8

-7

-6

-5

-4

-3

-2

-1

0

1

2

3

10

29

00

0

10

29

02

8

10

29

05

7

10

29

12

6

10

29

15

5

10

29

22

4

10

29

25

2

10

29

32

1

10

29

35

0

10

29

41

9

10

29

44

8

10

29

51

6

10

29

54

5

10

29

61

4

10

29

64

3

cm

5cm shift of muon profile centroid

~80m parallel beam shift

Centroid of horizontal profile pit2

BENE08 2 Dec 2008E Gschwendtner ABATB

24

Muon Monitors Measurements vs Simulations

Excellent agreement

CNGS Facility ndash Performance 2008

pit 1 Horizontal

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 1

pit 1 Vertical

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Vertical Profile Pit 1 pit 2 Vertical

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Vertical Profile Pit 2

pit 2 Horizontal

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 2

P

Sal

a et

al

FLU

KA

sim

ulat

ion

s 20

08

MeasurementsSimulations

BENE08 2 Dec 2008E Gschwendtner ABATB

25

OPERA

BENE08 2 Dec 2008E Gschwendtner ABATB

26

bull Total target massndash 12 kton146621 emulsion-lead bricks

bull 2 super modules ndash Spectrometer 22 RPC planes in

magnetic field (15T) 6 Drift tube planes

ndash Target 27 lead emulsion brick walls alternated with scintillator planes

The OPERA DetectorOPERA Detector

BENE08 2 Dec 2008E Gschwendtner ABATB

27

OPERA Results 2008bull 10100 on-time eventsbull 1700 candidate interactions in bricks

Handling of 100 bricksweek

Up to 65 CSd scannedweek

CS delivered to the Scanning Stations

CS scanned

CS with a positive results

OPERA Results

Courtesy of D Autiero

BENE08 2 Dec 2008E Gschwendtner ABATB

28

Backward going charged particle(interesting as will allow to benchmark the MC simulation of back-scattering)

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

29

Outlook 2009bull 2009 Schedule CNGS physics start on 7 May 2009 total 175 days

Outlook

Protons on target in 2009 ~27middot1019 to ~5middot1019 potyr

Depends mainly on bull CNGS duty cyclebull beam intensityextraction

BENE08 2 Dec 2008E Gschwendtner ABATB

30

Multi-Turn-Extractionbull Novel extraction scheme from PS to SPS

ndash Beam is separated in the transverse phase space usingbull Nonlinear magnetic elements (sextupoles and octupoles) to create stable islandsbull Slow (adiabatic) tune-variation to cross an appropriate resonance

ndash Beneficial effectsbull No mechanical device to slice the beam losses are reducedbull The phase space matching is improved bull The beamlets have the same emittance and optical parameters

Five beamlets separated by 1 PS turn

Result of the first extraction test in the PS extraction line (TT2) with one bunch

Courtesy MTE project - M Giovannozzi et al

Evolution of the horizontal beam distribution during the splitting

MTE extracted beam has been provided to the SPS for the last night of CNGS run2009 Start with classical extraction parallel prepare MTE provide first SFTPRO then CNGS

Outlook

BENE08 2 Dec 2008E Gschwendtner ABATB

31

Summarybull Start-up issues of CNGS have been

overcomendash a lot of work

bull CNGS 2008 run was very successfulndash 178 1019 pot ndash 1700 candidate events in OPERAndash exploring limits of CNGS facility

bull 2009 ndash full year of high intensity operationndash First tau neutrino events

BENE08 2 Dec 2008E Gschwendtner ABATB

32

Thank You to all the colleagues for their effort to make CNGS a

success this year

AB Department TS Department SCRPCNGS Secondary Beam Working Group MTE Project Team

BENE08 2 Dec 2008E Gschwendtner ABATB

33

CNGS Radiation SimulationsHigh-E (gt20 MeV) hadron fluence for a nominal year (45 E19 pot)

A

Fe

rra

ri

L

Sa

rch

iap

on

e e

t a

l F

LU

KA

sim

ula

tio

ns

20

08

CNGS Facility ndash Startup Issues

Dose in Gray for a nominal year (45 E19 pot)

2007 no shielding

2008++lt 10 Gry

F 106

~10 Gry2007 no shielding

F 104

lt 106 hcm2yr2008++

~1010 hcm2yr

BENE08 2 Dec 2008E Gschwendtner ABATB

34

3 prong vertex in the bottom layer of the emulsion

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

35

kink=0204 rad

Event GalleryOPERA Results

Other particles with very short life-time Charmed mesons produced by interactions Can contribute to background in case the muon from charm decay is missed

21 expected charm events during 2007-2008Seen 2 charm-like topologies

D+

neutrals

- (undetected)

h+

  • CNGS Operation Results 2008
  • Slide 2
  • CERN Neutrinos to Gran Sasso
  • CNGS Timeline
  • CNGS Conventional Neutrino Beams
  • CNGS Proton Beam Parameters
  • CNGS Target
  • CNGS Horn and Reflector
  • Muon Monitors
  • Radiation Issues - 2007 CNGS Run
  • Modifications in Shutdown 200708 due to Radiation Issues
  • Photo Gallery- Motorized Shielding Plugs
  • Junction to Target Chamber
  • Slide 14
  • CNGS Polarity Puzzle
  • Slide 16
  • CNGS 2008 Performance and Results
  • CNGS Run 2008
  • Supercycle
  • CNGS Run 2008 18 June- 03 Nov 2008
  • SPS Efficiency for CNGS
  • Beam Intensity
  • Beam Stability
  • Muon Monitors Measurements vs Simulations
  • OPERA
  • The OPERA Detector
  • OPERA Results 2008
  • Slide 28
  • Outlook 2009
  • Multi-Turn-Extraction
  • Summary
  • Slide 32
  • CNGS Radiation Simulations
  • Event Gallery
  • Slide 35
Page 4: CNGS Operation Results 2008 Edda Gschwendtner AB/ATB on behalf of the CNGS team.

BENE08 2 Dec 2008E Gschwendtner ABATB

4

CNGS Timeline2000-2005

Civil Engineering amp Installation

CERN

10 July-27 Oct

2006

Beam Commissioning CERN

008 1019 potDetector electronics commissioning

Gran Sasso

Shutdown

2006-2007Reflector Water Leak RepairImprovement

CERN

17 Sept-20 Oct

2007

Beam Commissioning at high intensity

CERN

008 1019potDetector commissioning with 60000 bricks

Gran Sasso

Shutdown

2007-2008

Additional shielding and electronics re-arrangement

CERN

Finishing OPERA bricks Gran Sasso

18 June-3 Nov 2008

CNGS Physics Run 178 1019pot

Introduction

BENE08 2 Dec 2008E Gschwendtner ABATB

5

434m100m

1095m 18m 5m 5m67m

27m

TBID

CNGS Conventional Neutrino Beams

p + C (interactions) K+ (decay in flight)

Produce pions and Kaons to make neutrinos

CNGS Facility ndash Layout and Main Parameters

targetmagnetichorns

decay tunnel

hadron absorber

muon detector pit 1

muon detector pit 2

BENE08 2 Dec 2008E Gschwendtner ABATB

6

Beam parameters Nominal CNGS beam

Nominal energy [GeV] 400

Normalized emittance [m] H=12 V=7

Emittance [m] H=0028 V= 0016

Momentum spread pp 007 +- 20

extractions per cycle 2 separated by 50 ms

Batch length [s] 105

of bunches per pulse 2100

Intensity per extraction [1013 p] 24

Bunch length [ns] (4) 2

Bunch spacing [ns] 5

Beta at focus [m] hor 10 vert 20

Beam sizes at 400 GeV [mm] 05 mm

Beam divergence [mrad] hor 005 vert 003

CNGS Proton Beam Parameters

Expected beam performance 45 x 1019 protonsyear on target

500kW beam power

CNGS Facility ndash Layout and Main Parameters

BENE08 2 Dec 2008E Gschwendtner ABATB

7

CNGS Target13 graphite rods each 10cm long

Oslash = 5mm andor 4mm

27mm interaction length

Ten targets (+1 prototype) have been built Assembled in two magazines

Target magazine 1 unit used 4 in-situ spares CNGS Facility ndash Layout

BENE08 2 Dec 2008E Gschwendtner ABATB

8

CNGS Horn and Reflector

bull 150kA180kA pulsedbull 7m long inner conductor 18mm thickbull Designed for 2107 pulsesbull Water cooling to evacuate 26kWbull 1 spare horn (no reflector yet)

Design featuresbull Water cooling circuit

ndash In situ spare easy switchbull ltlt1mSv total dose after 1y beam 1w stop

ndash Remote water connectionbull Remote handling amp electrical connections

ndash ltlt 1mSv total dose after 1y beam 1m stopbull Remote and quick polarity change

035 m

inner conductor

CNGS Facility ndash Layout and Main Parameters

BENE08 2 Dec 2008E Gschwendtner ABATB

9

60cm

270cm

1125cm

bull 2 x 41 fixed monitors (Ionization Chambers)

bull 2 x 1 movable monitor

LHC type Beam Loss Monitorsbull Stainless steel cylinder bull Al electrodes 05cm separation

bull N2 gas filling

CNGS

bull Muon Intensityndash Up to 8 107 cm2105s

CNGS Facility ndash Layout and Main Parameters

Muon Monitors

BENE08 2 Dec 2008E Gschwendtner ABATB

10

Radiation Issues - 2007 CNGS Run

bull During CNGS run 2007 ndash Failure in ventilation system installed in the

CNGS Service gallery due to radiation effects in electronics (SEU ndash Single Event Upsets- due to high energy hadron fluence) radiation levels predicted by simulations too high for off the shelf components -COTS

High-energy (gt20MeV) hadrons fluence (hcm2) for 45E19 pots

CNGS no surface building above CNGS target area large fraction of electronics in tunnel area

Ventilation units in the service gallery

CNGS Facility ndash Startup Issues

A Ferrari L Sarchiapone et al FLUKA simulations 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

11

Modifications in Shutdown 200708 due to Radiation Issues

1 Move as much electronics as possible out of CNGS tunnel area2 Create radiation safe area for electronics which needs to stay in CNGS3 Add shielding concrete walls up to 6m thick in total ~53m3 concrete

ndash Movable shielding plugs in TSG4 and TSG41 remotely controlled connected to access system will be opened before any access to CNGS is granted

ndash Bypass of ventilation ducts decrease radiation by up to a factor 106

Side effectndash CNGS triggered a large campaign for rad-hardness for LHCndash CNGS serves as test bed for parasitic irradiations of LHC and others

Target Chamber

ServiceGallery

Proton Beam Line target horn He tube 1 reflector He tube 2 decay tube

hellipelectronics equipment

Radiation lsquosafersquo area for electronics

TCV4

Parasitic LHC Radiation Test Facility

CNGS Facility ndash Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

12

Photo Gallery- Motorized Shielding PlugsPPP-TSG415 tons moves on 6 slope

PPP-TSG4120 tons moves on flat surface

Plugs connected to access system and remotely controlledOpen before an access to CNGS is granted

CNGS Facility ndash Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

13

Junction to Target Chamber

2007

2008

View from ventilation chamber into target chamber

2008

CNGS Facility ndash Startup Issues ndash Photo Gallery

2008

BENE08 2 Dec 2008E Gschwendtner ABATB

14

ABMB 14 Oct 2008E Gschwendtner ABATB

14

target

muon detectors pit 1

muon detectors pit 2

BENE08 2 Dec 2008E Gschwendtner ABATB

15

CNGS Polarity Puzzle

bull Observation of asymmetry in horizontal direction between

ndash Neutrino (focusing of mesons with positive charge)

ndash Anti-neutrino (focusing of mesons with negative charge)

270cm

1125cm

Muon DetectorMuon detectors very sensitive to any beam change ndashgive online feedback for neutrino beam quality

CNGS Facility ndash Beam Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

16

CNGS Polarity PuzzleExplanation Earth magnetic field in 1km long decay tube

ndash calculate B components in CNGS reference systemndash Partially shielding of magnetic field due to decay tube steel Results in shifts of the observed magnitude Measurements and simulations agree very well (absolute comparison within

5 in first muon pit)

Lines simulated fluxPoints measurementsNormalized to max=1

NeutrinoFocusing on

positive charge

Anti-neutrino Focusing on

negative charge

FL

UK

A s

imu

lati

on

s P

Sal

a et

al 2

008

CNGS Facility ndash Beam Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

17

CNGS 2008 Performance and Results

BENE08 2 Dec 2008E Gschwendtner ABATB

18

CNGS Run 2008

Excellent performance of the CNGS FacilityCNGS modifications finished successfully

bull no radiation problemseffects in the electronics during the entire run 2008

bull excellent hornreflector performance during 2008 run

Beam line equipment bull Working well and stable (target horns detectorshellip)

18 June ndash 3 November 2008 178middot1019 protons on target

OPERA experimentndash 10100 on-time eventsndash 1700 candidate interactions in bricks

CNGS Facility ndash Performance 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

19

Supercycle48s supercycleNorth Area 3 CNGS 1LHC1MD 375 CNGS duty cycle

504s supercycle7 CNGS 1 LHC 83 CNGS duty cycle

SFTPRO 3xCNGS LHC MD 4x CNGS2xCNGS MTECNGS

LHC

CNGS Facility ndash Performance 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

20

CNGS Run 2008 18 June- 03 Nov 2008

0

2E+18

4E+18

6E+18

8E+18

1E+19

12E+19

14E+19

16E+19

18E+19

18-J

un

28-J

un

8-J

ul

18-J

ul

28-J

ul

7-A

ug

17-A

ug

27-A

ug

6-S

ep

16-S

ep

26-S

ep

6-O

ct

16-O

ct

26-O

ct

5-N

ov

inte

gra

ted

po

t

Total 1781019 pot

18kV cable repair

MD

PS magnet exchange septum bakeout

MD

SPS timing faultvacuum leak amp magnet exchange

CNGS maintenance

SPS extraction line Magnet ground fault MD

CNGS maintenance

CNGS Facility ndash Performance 2008

Nominal 45 1019 potyr for 5 years

Beam to CNGSLHC FT MD

Beam to CNGSLHC FT

Beam to CNGS MD

BENE08 2 Dec 2008E Gschwendtner ABATB

21

SPS Efficiency for CNGSCNGS Facility ndash Performance 2008

Integrated efficiency 6094

BENE08 2 Dec 2008E Gschwendtner ABATB

22

Beam Intensity

SPS beam intensityextraction

Error rms spread

RF problems

Number of extractions during 2008 run

Almost 1 million - 995000

Intensity limitsbull Losses in the PSbull SPS RF

Typical transmission of the CNGS beam through the SPS cycle ~ 92Injection losses ~ 6

CNGS Facility ndash Performance 2008

Proton beam data courtesy of J Wenninger

BENE08 2 Dec 2008E Gschwendtner ABATB

23

Beam StabilityTarget Beam Positionbull Excellent position stability ~50microns over entire runbull No active position feedback is necessary

ndash 1-2 small steeringsweek only

CNGS Facility ndash Performance 2008

Beam Stability seen in Muon Monitorsbull Position stability of muon beam in pit 2 is ~3cm rmsbull Beam position correlated to beam position on target

ndash Parallel displacement of primary beam on T40

-8

-7

-6

-5

-4

-3

-2

-1

0

1

2

3

10

29

00

0

10

29

02

8

10

29

05

7

10

29

12

6

10

29

15

5

10

29

22

4

10

29

25

2

10

29

32

1

10

29

35

0

10

29

41

9

10

29

44

8

10

29

51

6

10

29

54

5

10

29

61

4

10

29

64

3

cm

5cm shift of muon profile centroid

~80m parallel beam shift

Centroid of horizontal profile pit2

BENE08 2 Dec 2008E Gschwendtner ABATB

24

Muon Monitors Measurements vs Simulations

Excellent agreement

CNGS Facility ndash Performance 2008

pit 1 Horizontal

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 1

pit 1 Vertical

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Vertical Profile Pit 1 pit 2 Vertical

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Vertical Profile Pit 2

pit 2 Horizontal

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 2

P

Sal

a et

al

FLU

KA

sim

ulat

ion

s 20

08

MeasurementsSimulations

BENE08 2 Dec 2008E Gschwendtner ABATB

25

OPERA

BENE08 2 Dec 2008E Gschwendtner ABATB

26

bull Total target massndash 12 kton146621 emulsion-lead bricks

bull 2 super modules ndash Spectrometer 22 RPC planes in

magnetic field (15T) 6 Drift tube planes

ndash Target 27 lead emulsion brick walls alternated with scintillator planes

The OPERA DetectorOPERA Detector

BENE08 2 Dec 2008E Gschwendtner ABATB

27

OPERA Results 2008bull 10100 on-time eventsbull 1700 candidate interactions in bricks

Handling of 100 bricksweek

Up to 65 CSd scannedweek

CS delivered to the Scanning Stations

CS scanned

CS with a positive results

OPERA Results

Courtesy of D Autiero

BENE08 2 Dec 2008E Gschwendtner ABATB

28

Backward going charged particle(interesting as will allow to benchmark the MC simulation of back-scattering)

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

29

Outlook 2009bull 2009 Schedule CNGS physics start on 7 May 2009 total 175 days

Outlook

Protons on target in 2009 ~27middot1019 to ~5middot1019 potyr

Depends mainly on bull CNGS duty cyclebull beam intensityextraction

BENE08 2 Dec 2008E Gschwendtner ABATB

30

Multi-Turn-Extractionbull Novel extraction scheme from PS to SPS

ndash Beam is separated in the transverse phase space usingbull Nonlinear magnetic elements (sextupoles and octupoles) to create stable islandsbull Slow (adiabatic) tune-variation to cross an appropriate resonance

ndash Beneficial effectsbull No mechanical device to slice the beam losses are reducedbull The phase space matching is improved bull The beamlets have the same emittance and optical parameters

Five beamlets separated by 1 PS turn

Result of the first extraction test in the PS extraction line (TT2) with one bunch

Courtesy MTE project - M Giovannozzi et al

Evolution of the horizontal beam distribution during the splitting

MTE extracted beam has been provided to the SPS for the last night of CNGS run2009 Start with classical extraction parallel prepare MTE provide first SFTPRO then CNGS

Outlook

BENE08 2 Dec 2008E Gschwendtner ABATB

31

Summarybull Start-up issues of CNGS have been

overcomendash a lot of work

bull CNGS 2008 run was very successfulndash 178 1019 pot ndash 1700 candidate events in OPERAndash exploring limits of CNGS facility

bull 2009 ndash full year of high intensity operationndash First tau neutrino events

BENE08 2 Dec 2008E Gschwendtner ABATB

32

Thank You to all the colleagues for their effort to make CNGS a

success this year

AB Department TS Department SCRPCNGS Secondary Beam Working Group MTE Project Team

BENE08 2 Dec 2008E Gschwendtner ABATB

33

CNGS Radiation SimulationsHigh-E (gt20 MeV) hadron fluence for a nominal year (45 E19 pot)

A

Fe

rra

ri

L

Sa

rch

iap

on

e e

t a

l F

LU

KA

sim

ula

tio

ns

20

08

CNGS Facility ndash Startup Issues

Dose in Gray for a nominal year (45 E19 pot)

2007 no shielding

2008++lt 10 Gry

F 106

~10 Gry2007 no shielding

F 104

lt 106 hcm2yr2008++

~1010 hcm2yr

BENE08 2 Dec 2008E Gschwendtner ABATB

34

3 prong vertex in the bottom layer of the emulsion

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

35

kink=0204 rad

Event GalleryOPERA Results

Other particles with very short life-time Charmed mesons produced by interactions Can contribute to background in case the muon from charm decay is missed

21 expected charm events during 2007-2008Seen 2 charm-like topologies

D+

neutrals

- (undetected)

h+

  • CNGS Operation Results 2008
  • Slide 2
  • CERN Neutrinos to Gran Sasso
  • CNGS Timeline
  • CNGS Conventional Neutrino Beams
  • CNGS Proton Beam Parameters
  • CNGS Target
  • CNGS Horn and Reflector
  • Muon Monitors
  • Radiation Issues - 2007 CNGS Run
  • Modifications in Shutdown 200708 due to Radiation Issues
  • Photo Gallery- Motorized Shielding Plugs
  • Junction to Target Chamber
  • Slide 14
  • CNGS Polarity Puzzle
  • Slide 16
  • CNGS 2008 Performance and Results
  • CNGS Run 2008
  • Supercycle
  • CNGS Run 2008 18 June- 03 Nov 2008
  • SPS Efficiency for CNGS
  • Beam Intensity
  • Beam Stability
  • Muon Monitors Measurements vs Simulations
  • OPERA
  • The OPERA Detector
  • OPERA Results 2008
  • Slide 28
  • Outlook 2009
  • Multi-Turn-Extraction
  • Summary
  • Slide 32
  • CNGS Radiation Simulations
  • Event Gallery
  • Slide 35
Page 5: CNGS Operation Results 2008 Edda Gschwendtner AB/ATB on behalf of the CNGS team.

BENE08 2 Dec 2008E Gschwendtner ABATB

5

434m100m

1095m 18m 5m 5m67m

27m

TBID

CNGS Conventional Neutrino Beams

p + C (interactions) K+ (decay in flight)

Produce pions and Kaons to make neutrinos

CNGS Facility ndash Layout and Main Parameters

targetmagnetichorns

decay tunnel

hadron absorber

muon detector pit 1

muon detector pit 2

BENE08 2 Dec 2008E Gschwendtner ABATB

6

Beam parameters Nominal CNGS beam

Nominal energy [GeV] 400

Normalized emittance [m] H=12 V=7

Emittance [m] H=0028 V= 0016

Momentum spread pp 007 +- 20

extractions per cycle 2 separated by 50 ms

Batch length [s] 105

of bunches per pulse 2100

Intensity per extraction [1013 p] 24

Bunch length [ns] (4) 2

Bunch spacing [ns] 5

Beta at focus [m] hor 10 vert 20

Beam sizes at 400 GeV [mm] 05 mm

Beam divergence [mrad] hor 005 vert 003

CNGS Proton Beam Parameters

Expected beam performance 45 x 1019 protonsyear on target

500kW beam power

CNGS Facility ndash Layout and Main Parameters

BENE08 2 Dec 2008E Gschwendtner ABATB

7

CNGS Target13 graphite rods each 10cm long

Oslash = 5mm andor 4mm

27mm interaction length

Ten targets (+1 prototype) have been built Assembled in two magazines

Target magazine 1 unit used 4 in-situ spares CNGS Facility ndash Layout

BENE08 2 Dec 2008E Gschwendtner ABATB

8

CNGS Horn and Reflector

bull 150kA180kA pulsedbull 7m long inner conductor 18mm thickbull Designed for 2107 pulsesbull Water cooling to evacuate 26kWbull 1 spare horn (no reflector yet)

Design featuresbull Water cooling circuit

ndash In situ spare easy switchbull ltlt1mSv total dose after 1y beam 1w stop

ndash Remote water connectionbull Remote handling amp electrical connections

ndash ltlt 1mSv total dose after 1y beam 1m stopbull Remote and quick polarity change

035 m

inner conductor

CNGS Facility ndash Layout and Main Parameters

BENE08 2 Dec 2008E Gschwendtner ABATB

9

60cm

270cm

1125cm

bull 2 x 41 fixed monitors (Ionization Chambers)

bull 2 x 1 movable monitor

LHC type Beam Loss Monitorsbull Stainless steel cylinder bull Al electrodes 05cm separation

bull N2 gas filling

CNGS

bull Muon Intensityndash Up to 8 107 cm2105s

CNGS Facility ndash Layout and Main Parameters

Muon Monitors

BENE08 2 Dec 2008E Gschwendtner ABATB

10

Radiation Issues - 2007 CNGS Run

bull During CNGS run 2007 ndash Failure in ventilation system installed in the

CNGS Service gallery due to radiation effects in electronics (SEU ndash Single Event Upsets- due to high energy hadron fluence) radiation levels predicted by simulations too high for off the shelf components -COTS

High-energy (gt20MeV) hadrons fluence (hcm2) for 45E19 pots

CNGS no surface building above CNGS target area large fraction of electronics in tunnel area

Ventilation units in the service gallery

CNGS Facility ndash Startup Issues

A Ferrari L Sarchiapone et al FLUKA simulations 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

11

Modifications in Shutdown 200708 due to Radiation Issues

1 Move as much electronics as possible out of CNGS tunnel area2 Create radiation safe area for electronics which needs to stay in CNGS3 Add shielding concrete walls up to 6m thick in total ~53m3 concrete

ndash Movable shielding plugs in TSG4 and TSG41 remotely controlled connected to access system will be opened before any access to CNGS is granted

ndash Bypass of ventilation ducts decrease radiation by up to a factor 106

Side effectndash CNGS triggered a large campaign for rad-hardness for LHCndash CNGS serves as test bed for parasitic irradiations of LHC and others

Target Chamber

ServiceGallery

Proton Beam Line target horn He tube 1 reflector He tube 2 decay tube

hellipelectronics equipment

Radiation lsquosafersquo area for electronics

TCV4

Parasitic LHC Radiation Test Facility

CNGS Facility ndash Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

12

Photo Gallery- Motorized Shielding PlugsPPP-TSG415 tons moves on 6 slope

PPP-TSG4120 tons moves on flat surface

Plugs connected to access system and remotely controlledOpen before an access to CNGS is granted

CNGS Facility ndash Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

13

Junction to Target Chamber

2007

2008

View from ventilation chamber into target chamber

2008

CNGS Facility ndash Startup Issues ndash Photo Gallery

2008

BENE08 2 Dec 2008E Gschwendtner ABATB

14

ABMB 14 Oct 2008E Gschwendtner ABATB

14

target

muon detectors pit 1

muon detectors pit 2

BENE08 2 Dec 2008E Gschwendtner ABATB

15

CNGS Polarity Puzzle

bull Observation of asymmetry in horizontal direction between

ndash Neutrino (focusing of mesons with positive charge)

ndash Anti-neutrino (focusing of mesons with negative charge)

270cm

1125cm

Muon DetectorMuon detectors very sensitive to any beam change ndashgive online feedback for neutrino beam quality

CNGS Facility ndash Beam Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

16

CNGS Polarity PuzzleExplanation Earth magnetic field in 1km long decay tube

ndash calculate B components in CNGS reference systemndash Partially shielding of magnetic field due to decay tube steel Results in shifts of the observed magnitude Measurements and simulations agree very well (absolute comparison within

5 in first muon pit)

Lines simulated fluxPoints measurementsNormalized to max=1

NeutrinoFocusing on

positive charge

Anti-neutrino Focusing on

negative charge

FL

UK

A s

imu

lati

on

s P

Sal

a et

al 2

008

CNGS Facility ndash Beam Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

17

CNGS 2008 Performance and Results

BENE08 2 Dec 2008E Gschwendtner ABATB

18

CNGS Run 2008

Excellent performance of the CNGS FacilityCNGS modifications finished successfully

bull no radiation problemseffects in the electronics during the entire run 2008

bull excellent hornreflector performance during 2008 run

Beam line equipment bull Working well and stable (target horns detectorshellip)

18 June ndash 3 November 2008 178middot1019 protons on target

OPERA experimentndash 10100 on-time eventsndash 1700 candidate interactions in bricks

CNGS Facility ndash Performance 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

19

Supercycle48s supercycleNorth Area 3 CNGS 1LHC1MD 375 CNGS duty cycle

504s supercycle7 CNGS 1 LHC 83 CNGS duty cycle

SFTPRO 3xCNGS LHC MD 4x CNGS2xCNGS MTECNGS

LHC

CNGS Facility ndash Performance 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

20

CNGS Run 2008 18 June- 03 Nov 2008

0

2E+18

4E+18

6E+18

8E+18

1E+19

12E+19

14E+19

16E+19

18E+19

18-J

un

28-J

un

8-J

ul

18-J

ul

28-J

ul

7-A

ug

17-A

ug

27-A

ug

6-S

ep

16-S

ep

26-S

ep

6-O

ct

16-O

ct

26-O

ct

5-N

ov

inte

gra

ted

po

t

Total 1781019 pot

18kV cable repair

MD

PS magnet exchange septum bakeout

MD

SPS timing faultvacuum leak amp magnet exchange

CNGS maintenance

SPS extraction line Magnet ground fault MD

CNGS maintenance

CNGS Facility ndash Performance 2008

Nominal 45 1019 potyr for 5 years

Beam to CNGSLHC FT MD

Beam to CNGSLHC FT

Beam to CNGS MD

BENE08 2 Dec 2008E Gschwendtner ABATB

21

SPS Efficiency for CNGSCNGS Facility ndash Performance 2008

Integrated efficiency 6094

BENE08 2 Dec 2008E Gschwendtner ABATB

22

Beam Intensity

SPS beam intensityextraction

Error rms spread

RF problems

Number of extractions during 2008 run

Almost 1 million - 995000

Intensity limitsbull Losses in the PSbull SPS RF

Typical transmission of the CNGS beam through the SPS cycle ~ 92Injection losses ~ 6

CNGS Facility ndash Performance 2008

Proton beam data courtesy of J Wenninger

BENE08 2 Dec 2008E Gschwendtner ABATB

23

Beam StabilityTarget Beam Positionbull Excellent position stability ~50microns over entire runbull No active position feedback is necessary

ndash 1-2 small steeringsweek only

CNGS Facility ndash Performance 2008

Beam Stability seen in Muon Monitorsbull Position stability of muon beam in pit 2 is ~3cm rmsbull Beam position correlated to beam position on target

ndash Parallel displacement of primary beam on T40

-8

-7

-6

-5

-4

-3

-2

-1

0

1

2

3

10

29

00

0

10

29

02

8

10

29

05

7

10

29

12

6

10

29

15

5

10

29

22

4

10

29

25

2

10

29

32

1

10

29

35

0

10

29

41

9

10

29

44

8

10

29

51

6

10

29

54

5

10

29

61

4

10

29

64

3

cm

5cm shift of muon profile centroid

~80m parallel beam shift

Centroid of horizontal profile pit2

BENE08 2 Dec 2008E Gschwendtner ABATB

24

Muon Monitors Measurements vs Simulations

Excellent agreement

CNGS Facility ndash Performance 2008

pit 1 Horizontal

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 1

pit 1 Vertical

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Vertical Profile Pit 1 pit 2 Vertical

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Vertical Profile Pit 2

pit 2 Horizontal

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 2

P

Sal

a et

al

FLU

KA

sim

ulat

ion

s 20

08

MeasurementsSimulations

BENE08 2 Dec 2008E Gschwendtner ABATB

25

OPERA

BENE08 2 Dec 2008E Gschwendtner ABATB

26

bull Total target massndash 12 kton146621 emulsion-lead bricks

bull 2 super modules ndash Spectrometer 22 RPC planes in

magnetic field (15T) 6 Drift tube planes

ndash Target 27 lead emulsion brick walls alternated with scintillator planes

The OPERA DetectorOPERA Detector

BENE08 2 Dec 2008E Gschwendtner ABATB

27

OPERA Results 2008bull 10100 on-time eventsbull 1700 candidate interactions in bricks

Handling of 100 bricksweek

Up to 65 CSd scannedweek

CS delivered to the Scanning Stations

CS scanned

CS with a positive results

OPERA Results

Courtesy of D Autiero

BENE08 2 Dec 2008E Gschwendtner ABATB

28

Backward going charged particle(interesting as will allow to benchmark the MC simulation of back-scattering)

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

29

Outlook 2009bull 2009 Schedule CNGS physics start on 7 May 2009 total 175 days

Outlook

Protons on target in 2009 ~27middot1019 to ~5middot1019 potyr

Depends mainly on bull CNGS duty cyclebull beam intensityextraction

BENE08 2 Dec 2008E Gschwendtner ABATB

30

Multi-Turn-Extractionbull Novel extraction scheme from PS to SPS

ndash Beam is separated in the transverse phase space usingbull Nonlinear magnetic elements (sextupoles and octupoles) to create stable islandsbull Slow (adiabatic) tune-variation to cross an appropriate resonance

ndash Beneficial effectsbull No mechanical device to slice the beam losses are reducedbull The phase space matching is improved bull The beamlets have the same emittance and optical parameters

Five beamlets separated by 1 PS turn

Result of the first extraction test in the PS extraction line (TT2) with one bunch

Courtesy MTE project - M Giovannozzi et al

Evolution of the horizontal beam distribution during the splitting

MTE extracted beam has been provided to the SPS for the last night of CNGS run2009 Start with classical extraction parallel prepare MTE provide first SFTPRO then CNGS

Outlook

BENE08 2 Dec 2008E Gschwendtner ABATB

31

Summarybull Start-up issues of CNGS have been

overcomendash a lot of work

bull CNGS 2008 run was very successfulndash 178 1019 pot ndash 1700 candidate events in OPERAndash exploring limits of CNGS facility

bull 2009 ndash full year of high intensity operationndash First tau neutrino events

BENE08 2 Dec 2008E Gschwendtner ABATB

32

Thank You to all the colleagues for their effort to make CNGS a

success this year

AB Department TS Department SCRPCNGS Secondary Beam Working Group MTE Project Team

BENE08 2 Dec 2008E Gschwendtner ABATB

33

CNGS Radiation SimulationsHigh-E (gt20 MeV) hadron fluence for a nominal year (45 E19 pot)

A

Fe

rra

ri

L

Sa

rch

iap

on

e e

t a

l F

LU

KA

sim

ula

tio

ns

20

08

CNGS Facility ndash Startup Issues

Dose in Gray for a nominal year (45 E19 pot)

2007 no shielding

2008++lt 10 Gry

F 106

~10 Gry2007 no shielding

F 104

lt 106 hcm2yr2008++

~1010 hcm2yr

BENE08 2 Dec 2008E Gschwendtner ABATB

34

3 prong vertex in the bottom layer of the emulsion

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

35

kink=0204 rad

Event GalleryOPERA Results

Other particles with very short life-time Charmed mesons produced by interactions Can contribute to background in case the muon from charm decay is missed

21 expected charm events during 2007-2008Seen 2 charm-like topologies

D+

neutrals

- (undetected)

h+

  • CNGS Operation Results 2008
  • Slide 2
  • CERN Neutrinos to Gran Sasso
  • CNGS Timeline
  • CNGS Conventional Neutrino Beams
  • CNGS Proton Beam Parameters
  • CNGS Target
  • CNGS Horn and Reflector
  • Muon Monitors
  • Radiation Issues - 2007 CNGS Run
  • Modifications in Shutdown 200708 due to Radiation Issues
  • Photo Gallery- Motorized Shielding Plugs
  • Junction to Target Chamber
  • Slide 14
  • CNGS Polarity Puzzle
  • Slide 16
  • CNGS 2008 Performance and Results
  • CNGS Run 2008
  • Supercycle
  • CNGS Run 2008 18 June- 03 Nov 2008
  • SPS Efficiency for CNGS
  • Beam Intensity
  • Beam Stability
  • Muon Monitors Measurements vs Simulations
  • OPERA
  • The OPERA Detector
  • OPERA Results 2008
  • Slide 28
  • Outlook 2009
  • Multi-Turn-Extraction
  • Summary
  • Slide 32
  • CNGS Radiation Simulations
  • Event Gallery
  • Slide 35
Page 6: CNGS Operation Results 2008 Edda Gschwendtner AB/ATB on behalf of the CNGS team.

BENE08 2 Dec 2008E Gschwendtner ABATB

6

Beam parameters Nominal CNGS beam

Nominal energy [GeV] 400

Normalized emittance [m] H=12 V=7

Emittance [m] H=0028 V= 0016

Momentum spread pp 007 +- 20

extractions per cycle 2 separated by 50 ms

Batch length [s] 105

of bunches per pulse 2100

Intensity per extraction [1013 p] 24

Bunch length [ns] (4) 2

Bunch spacing [ns] 5

Beta at focus [m] hor 10 vert 20

Beam sizes at 400 GeV [mm] 05 mm

Beam divergence [mrad] hor 005 vert 003

CNGS Proton Beam Parameters

Expected beam performance 45 x 1019 protonsyear on target

500kW beam power

CNGS Facility ndash Layout and Main Parameters

BENE08 2 Dec 2008E Gschwendtner ABATB

7

CNGS Target13 graphite rods each 10cm long

Oslash = 5mm andor 4mm

27mm interaction length

Ten targets (+1 prototype) have been built Assembled in two magazines

Target magazine 1 unit used 4 in-situ spares CNGS Facility ndash Layout

BENE08 2 Dec 2008E Gschwendtner ABATB

8

CNGS Horn and Reflector

bull 150kA180kA pulsedbull 7m long inner conductor 18mm thickbull Designed for 2107 pulsesbull Water cooling to evacuate 26kWbull 1 spare horn (no reflector yet)

Design featuresbull Water cooling circuit

ndash In situ spare easy switchbull ltlt1mSv total dose after 1y beam 1w stop

ndash Remote water connectionbull Remote handling amp electrical connections

ndash ltlt 1mSv total dose after 1y beam 1m stopbull Remote and quick polarity change

035 m

inner conductor

CNGS Facility ndash Layout and Main Parameters

BENE08 2 Dec 2008E Gschwendtner ABATB

9

60cm

270cm

1125cm

bull 2 x 41 fixed monitors (Ionization Chambers)

bull 2 x 1 movable monitor

LHC type Beam Loss Monitorsbull Stainless steel cylinder bull Al electrodes 05cm separation

bull N2 gas filling

CNGS

bull Muon Intensityndash Up to 8 107 cm2105s

CNGS Facility ndash Layout and Main Parameters

Muon Monitors

BENE08 2 Dec 2008E Gschwendtner ABATB

10

Radiation Issues - 2007 CNGS Run

bull During CNGS run 2007 ndash Failure in ventilation system installed in the

CNGS Service gallery due to radiation effects in electronics (SEU ndash Single Event Upsets- due to high energy hadron fluence) radiation levels predicted by simulations too high for off the shelf components -COTS

High-energy (gt20MeV) hadrons fluence (hcm2) for 45E19 pots

CNGS no surface building above CNGS target area large fraction of electronics in tunnel area

Ventilation units in the service gallery

CNGS Facility ndash Startup Issues

A Ferrari L Sarchiapone et al FLUKA simulations 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

11

Modifications in Shutdown 200708 due to Radiation Issues

1 Move as much electronics as possible out of CNGS tunnel area2 Create radiation safe area for electronics which needs to stay in CNGS3 Add shielding concrete walls up to 6m thick in total ~53m3 concrete

ndash Movable shielding plugs in TSG4 and TSG41 remotely controlled connected to access system will be opened before any access to CNGS is granted

ndash Bypass of ventilation ducts decrease radiation by up to a factor 106

Side effectndash CNGS triggered a large campaign for rad-hardness for LHCndash CNGS serves as test bed for parasitic irradiations of LHC and others

Target Chamber

ServiceGallery

Proton Beam Line target horn He tube 1 reflector He tube 2 decay tube

hellipelectronics equipment

Radiation lsquosafersquo area for electronics

TCV4

Parasitic LHC Radiation Test Facility

CNGS Facility ndash Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

12

Photo Gallery- Motorized Shielding PlugsPPP-TSG415 tons moves on 6 slope

PPP-TSG4120 tons moves on flat surface

Plugs connected to access system and remotely controlledOpen before an access to CNGS is granted

CNGS Facility ndash Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

13

Junction to Target Chamber

2007

2008

View from ventilation chamber into target chamber

2008

CNGS Facility ndash Startup Issues ndash Photo Gallery

2008

BENE08 2 Dec 2008E Gschwendtner ABATB

14

ABMB 14 Oct 2008E Gschwendtner ABATB

14

target

muon detectors pit 1

muon detectors pit 2

BENE08 2 Dec 2008E Gschwendtner ABATB

15

CNGS Polarity Puzzle

bull Observation of asymmetry in horizontal direction between

ndash Neutrino (focusing of mesons with positive charge)

ndash Anti-neutrino (focusing of mesons with negative charge)

270cm

1125cm

Muon DetectorMuon detectors very sensitive to any beam change ndashgive online feedback for neutrino beam quality

CNGS Facility ndash Beam Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

16

CNGS Polarity PuzzleExplanation Earth magnetic field in 1km long decay tube

ndash calculate B components in CNGS reference systemndash Partially shielding of magnetic field due to decay tube steel Results in shifts of the observed magnitude Measurements and simulations agree very well (absolute comparison within

5 in first muon pit)

Lines simulated fluxPoints measurementsNormalized to max=1

NeutrinoFocusing on

positive charge

Anti-neutrino Focusing on

negative charge

FL

UK

A s

imu

lati

on

s P

Sal

a et

al 2

008

CNGS Facility ndash Beam Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

17

CNGS 2008 Performance and Results

BENE08 2 Dec 2008E Gschwendtner ABATB

18

CNGS Run 2008

Excellent performance of the CNGS FacilityCNGS modifications finished successfully

bull no radiation problemseffects in the electronics during the entire run 2008

bull excellent hornreflector performance during 2008 run

Beam line equipment bull Working well and stable (target horns detectorshellip)

18 June ndash 3 November 2008 178middot1019 protons on target

OPERA experimentndash 10100 on-time eventsndash 1700 candidate interactions in bricks

CNGS Facility ndash Performance 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

19

Supercycle48s supercycleNorth Area 3 CNGS 1LHC1MD 375 CNGS duty cycle

504s supercycle7 CNGS 1 LHC 83 CNGS duty cycle

SFTPRO 3xCNGS LHC MD 4x CNGS2xCNGS MTECNGS

LHC

CNGS Facility ndash Performance 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

20

CNGS Run 2008 18 June- 03 Nov 2008

0

2E+18

4E+18

6E+18

8E+18

1E+19

12E+19

14E+19

16E+19

18E+19

18-J

un

28-J

un

8-J

ul

18-J

ul

28-J

ul

7-A

ug

17-A

ug

27-A

ug

6-S

ep

16-S

ep

26-S

ep

6-O

ct

16-O

ct

26-O

ct

5-N

ov

inte

gra

ted

po

t

Total 1781019 pot

18kV cable repair

MD

PS magnet exchange septum bakeout

MD

SPS timing faultvacuum leak amp magnet exchange

CNGS maintenance

SPS extraction line Magnet ground fault MD

CNGS maintenance

CNGS Facility ndash Performance 2008

Nominal 45 1019 potyr for 5 years

Beam to CNGSLHC FT MD

Beam to CNGSLHC FT

Beam to CNGS MD

BENE08 2 Dec 2008E Gschwendtner ABATB

21

SPS Efficiency for CNGSCNGS Facility ndash Performance 2008

Integrated efficiency 6094

BENE08 2 Dec 2008E Gschwendtner ABATB

22

Beam Intensity

SPS beam intensityextraction

Error rms spread

RF problems

Number of extractions during 2008 run

Almost 1 million - 995000

Intensity limitsbull Losses in the PSbull SPS RF

Typical transmission of the CNGS beam through the SPS cycle ~ 92Injection losses ~ 6

CNGS Facility ndash Performance 2008

Proton beam data courtesy of J Wenninger

BENE08 2 Dec 2008E Gschwendtner ABATB

23

Beam StabilityTarget Beam Positionbull Excellent position stability ~50microns over entire runbull No active position feedback is necessary

ndash 1-2 small steeringsweek only

CNGS Facility ndash Performance 2008

Beam Stability seen in Muon Monitorsbull Position stability of muon beam in pit 2 is ~3cm rmsbull Beam position correlated to beam position on target

ndash Parallel displacement of primary beam on T40

-8

-7

-6

-5

-4

-3

-2

-1

0

1

2

3

10

29

00

0

10

29

02

8

10

29

05

7

10

29

12

6

10

29

15

5

10

29

22

4

10

29

25

2

10

29

32

1

10

29

35

0

10

29

41

9

10

29

44

8

10

29

51

6

10

29

54

5

10

29

61

4

10

29

64

3

cm

5cm shift of muon profile centroid

~80m parallel beam shift

Centroid of horizontal profile pit2

BENE08 2 Dec 2008E Gschwendtner ABATB

24

Muon Monitors Measurements vs Simulations

Excellent agreement

CNGS Facility ndash Performance 2008

pit 1 Horizontal

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 1

pit 1 Vertical

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Vertical Profile Pit 1 pit 2 Vertical

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Vertical Profile Pit 2

pit 2 Horizontal

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 2

P

Sal

a et

al

FLU

KA

sim

ulat

ion

s 20

08

MeasurementsSimulations

BENE08 2 Dec 2008E Gschwendtner ABATB

25

OPERA

BENE08 2 Dec 2008E Gschwendtner ABATB

26

bull Total target massndash 12 kton146621 emulsion-lead bricks

bull 2 super modules ndash Spectrometer 22 RPC planes in

magnetic field (15T) 6 Drift tube planes

ndash Target 27 lead emulsion brick walls alternated with scintillator planes

The OPERA DetectorOPERA Detector

BENE08 2 Dec 2008E Gschwendtner ABATB

27

OPERA Results 2008bull 10100 on-time eventsbull 1700 candidate interactions in bricks

Handling of 100 bricksweek

Up to 65 CSd scannedweek

CS delivered to the Scanning Stations

CS scanned

CS with a positive results

OPERA Results

Courtesy of D Autiero

BENE08 2 Dec 2008E Gschwendtner ABATB

28

Backward going charged particle(interesting as will allow to benchmark the MC simulation of back-scattering)

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

29

Outlook 2009bull 2009 Schedule CNGS physics start on 7 May 2009 total 175 days

Outlook

Protons on target in 2009 ~27middot1019 to ~5middot1019 potyr

Depends mainly on bull CNGS duty cyclebull beam intensityextraction

BENE08 2 Dec 2008E Gschwendtner ABATB

30

Multi-Turn-Extractionbull Novel extraction scheme from PS to SPS

ndash Beam is separated in the transverse phase space usingbull Nonlinear magnetic elements (sextupoles and octupoles) to create stable islandsbull Slow (adiabatic) tune-variation to cross an appropriate resonance

ndash Beneficial effectsbull No mechanical device to slice the beam losses are reducedbull The phase space matching is improved bull The beamlets have the same emittance and optical parameters

Five beamlets separated by 1 PS turn

Result of the first extraction test in the PS extraction line (TT2) with one bunch

Courtesy MTE project - M Giovannozzi et al

Evolution of the horizontal beam distribution during the splitting

MTE extracted beam has been provided to the SPS for the last night of CNGS run2009 Start with classical extraction parallel prepare MTE provide first SFTPRO then CNGS

Outlook

BENE08 2 Dec 2008E Gschwendtner ABATB

31

Summarybull Start-up issues of CNGS have been

overcomendash a lot of work

bull CNGS 2008 run was very successfulndash 178 1019 pot ndash 1700 candidate events in OPERAndash exploring limits of CNGS facility

bull 2009 ndash full year of high intensity operationndash First tau neutrino events

BENE08 2 Dec 2008E Gschwendtner ABATB

32

Thank You to all the colleagues for their effort to make CNGS a

success this year

AB Department TS Department SCRPCNGS Secondary Beam Working Group MTE Project Team

BENE08 2 Dec 2008E Gschwendtner ABATB

33

CNGS Radiation SimulationsHigh-E (gt20 MeV) hadron fluence for a nominal year (45 E19 pot)

A

Fe

rra

ri

L

Sa

rch

iap

on

e e

t a

l F

LU

KA

sim

ula

tio

ns

20

08

CNGS Facility ndash Startup Issues

Dose in Gray for a nominal year (45 E19 pot)

2007 no shielding

2008++lt 10 Gry

F 106

~10 Gry2007 no shielding

F 104

lt 106 hcm2yr2008++

~1010 hcm2yr

BENE08 2 Dec 2008E Gschwendtner ABATB

34

3 prong vertex in the bottom layer of the emulsion

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

35

kink=0204 rad

Event GalleryOPERA Results

Other particles with very short life-time Charmed mesons produced by interactions Can contribute to background in case the muon from charm decay is missed

21 expected charm events during 2007-2008Seen 2 charm-like topologies

D+

neutrals

- (undetected)

h+

  • CNGS Operation Results 2008
  • Slide 2
  • CERN Neutrinos to Gran Sasso
  • CNGS Timeline
  • CNGS Conventional Neutrino Beams
  • CNGS Proton Beam Parameters
  • CNGS Target
  • CNGS Horn and Reflector
  • Muon Monitors
  • Radiation Issues - 2007 CNGS Run
  • Modifications in Shutdown 200708 due to Radiation Issues
  • Photo Gallery- Motorized Shielding Plugs
  • Junction to Target Chamber
  • Slide 14
  • CNGS Polarity Puzzle
  • Slide 16
  • CNGS 2008 Performance and Results
  • CNGS Run 2008
  • Supercycle
  • CNGS Run 2008 18 June- 03 Nov 2008
  • SPS Efficiency for CNGS
  • Beam Intensity
  • Beam Stability
  • Muon Monitors Measurements vs Simulations
  • OPERA
  • The OPERA Detector
  • OPERA Results 2008
  • Slide 28
  • Outlook 2009
  • Multi-Turn-Extraction
  • Summary
  • Slide 32
  • CNGS Radiation Simulations
  • Event Gallery
  • Slide 35
Page 7: CNGS Operation Results 2008 Edda Gschwendtner AB/ATB on behalf of the CNGS team.

BENE08 2 Dec 2008E Gschwendtner ABATB

7

CNGS Target13 graphite rods each 10cm long

Oslash = 5mm andor 4mm

27mm interaction length

Ten targets (+1 prototype) have been built Assembled in two magazines

Target magazine 1 unit used 4 in-situ spares CNGS Facility ndash Layout

BENE08 2 Dec 2008E Gschwendtner ABATB

8

CNGS Horn and Reflector

bull 150kA180kA pulsedbull 7m long inner conductor 18mm thickbull Designed for 2107 pulsesbull Water cooling to evacuate 26kWbull 1 spare horn (no reflector yet)

Design featuresbull Water cooling circuit

ndash In situ spare easy switchbull ltlt1mSv total dose after 1y beam 1w stop

ndash Remote water connectionbull Remote handling amp electrical connections

ndash ltlt 1mSv total dose after 1y beam 1m stopbull Remote and quick polarity change

035 m

inner conductor

CNGS Facility ndash Layout and Main Parameters

BENE08 2 Dec 2008E Gschwendtner ABATB

9

60cm

270cm

1125cm

bull 2 x 41 fixed monitors (Ionization Chambers)

bull 2 x 1 movable monitor

LHC type Beam Loss Monitorsbull Stainless steel cylinder bull Al electrodes 05cm separation

bull N2 gas filling

CNGS

bull Muon Intensityndash Up to 8 107 cm2105s

CNGS Facility ndash Layout and Main Parameters

Muon Monitors

BENE08 2 Dec 2008E Gschwendtner ABATB

10

Radiation Issues - 2007 CNGS Run

bull During CNGS run 2007 ndash Failure in ventilation system installed in the

CNGS Service gallery due to radiation effects in electronics (SEU ndash Single Event Upsets- due to high energy hadron fluence) radiation levels predicted by simulations too high for off the shelf components -COTS

High-energy (gt20MeV) hadrons fluence (hcm2) for 45E19 pots

CNGS no surface building above CNGS target area large fraction of electronics in tunnel area

Ventilation units in the service gallery

CNGS Facility ndash Startup Issues

A Ferrari L Sarchiapone et al FLUKA simulations 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

11

Modifications in Shutdown 200708 due to Radiation Issues

1 Move as much electronics as possible out of CNGS tunnel area2 Create radiation safe area for electronics which needs to stay in CNGS3 Add shielding concrete walls up to 6m thick in total ~53m3 concrete

ndash Movable shielding plugs in TSG4 and TSG41 remotely controlled connected to access system will be opened before any access to CNGS is granted

ndash Bypass of ventilation ducts decrease radiation by up to a factor 106

Side effectndash CNGS triggered a large campaign for rad-hardness for LHCndash CNGS serves as test bed for parasitic irradiations of LHC and others

Target Chamber

ServiceGallery

Proton Beam Line target horn He tube 1 reflector He tube 2 decay tube

hellipelectronics equipment

Radiation lsquosafersquo area for electronics

TCV4

Parasitic LHC Radiation Test Facility

CNGS Facility ndash Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

12

Photo Gallery- Motorized Shielding PlugsPPP-TSG415 tons moves on 6 slope

PPP-TSG4120 tons moves on flat surface

Plugs connected to access system and remotely controlledOpen before an access to CNGS is granted

CNGS Facility ndash Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

13

Junction to Target Chamber

2007

2008

View from ventilation chamber into target chamber

2008

CNGS Facility ndash Startup Issues ndash Photo Gallery

2008

BENE08 2 Dec 2008E Gschwendtner ABATB

14

ABMB 14 Oct 2008E Gschwendtner ABATB

14

target

muon detectors pit 1

muon detectors pit 2

BENE08 2 Dec 2008E Gschwendtner ABATB

15

CNGS Polarity Puzzle

bull Observation of asymmetry in horizontal direction between

ndash Neutrino (focusing of mesons with positive charge)

ndash Anti-neutrino (focusing of mesons with negative charge)

270cm

1125cm

Muon DetectorMuon detectors very sensitive to any beam change ndashgive online feedback for neutrino beam quality

CNGS Facility ndash Beam Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

16

CNGS Polarity PuzzleExplanation Earth magnetic field in 1km long decay tube

ndash calculate B components in CNGS reference systemndash Partially shielding of magnetic field due to decay tube steel Results in shifts of the observed magnitude Measurements and simulations agree very well (absolute comparison within

5 in first muon pit)

Lines simulated fluxPoints measurementsNormalized to max=1

NeutrinoFocusing on

positive charge

Anti-neutrino Focusing on

negative charge

FL

UK

A s

imu

lati

on

s P

Sal

a et

al 2

008

CNGS Facility ndash Beam Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

17

CNGS 2008 Performance and Results

BENE08 2 Dec 2008E Gschwendtner ABATB

18

CNGS Run 2008

Excellent performance of the CNGS FacilityCNGS modifications finished successfully

bull no radiation problemseffects in the electronics during the entire run 2008

bull excellent hornreflector performance during 2008 run

Beam line equipment bull Working well and stable (target horns detectorshellip)

18 June ndash 3 November 2008 178middot1019 protons on target

OPERA experimentndash 10100 on-time eventsndash 1700 candidate interactions in bricks

CNGS Facility ndash Performance 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

19

Supercycle48s supercycleNorth Area 3 CNGS 1LHC1MD 375 CNGS duty cycle

504s supercycle7 CNGS 1 LHC 83 CNGS duty cycle

SFTPRO 3xCNGS LHC MD 4x CNGS2xCNGS MTECNGS

LHC

CNGS Facility ndash Performance 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

20

CNGS Run 2008 18 June- 03 Nov 2008

0

2E+18

4E+18

6E+18

8E+18

1E+19

12E+19

14E+19

16E+19

18E+19

18-J

un

28-J

un

8-J

ul

18-J

ul

28-J

ul

7-A

ug

17-A

ug

27-A

ug

6-S

ep

16-S

ep

26-S

ep

6-O

ct

16-O

ct

26-O

ct

5-N

ov

inte

gra

ted

po

t

Total 1781019 pot

18kV cable repair

MD

PS magnet exchange septum bakeout

MD

SPS timing faultvacuum leak amp magnet exchange

CNGS maintenance

SPS extraction line Magnet ground fault MD

CNGS maintenance

CNGS Facility ndash Performance 2008

Nominal 45 1019 potyr for 5 years

Beam to CNGSLHC FT MD

Beam to CNGSLHC FT

Beam to CNGS MD

BENE08 2 Dec 2008E Gschwendtner ABATB

21

SPS Efficiency for CNGSCNGS Facility ndash Performance 2008

Integrated efficiency 6094

BENE08 2 Dec 2008E Gschwendtner ABATB

22

Beam Intensity

SPS beam intensityextraction

Error rms spread

RF problems

Number of extractions during 2008 run

Almost 1 million - 995000

Intensity limitsbull Losses in the PSbull SPS RF

Typical transmission of the CNGS beam through the SPS cycle ~ 92Injection losses ~ 6

CNGS Facility ndash Performance 2008

Proton beam data courtesy of J Wenninger

BENE08 2 Dec 2008E Gschwendtner ABATB

23

Beam StabilityTarget Beam Positionbull Excellent position stability ~50microns over entire runbull No active position feedback is necessary

ndash 1-2 small steeringsweek only

CNGS Facility ndash Performance 2008

Beam Stability seen in Muon Monitorsbull Position stability of muon beam in pit 2 is ~3cm rmsbull Beam position correlated to beam position on target

ndash Parallel displacement of primary beam on T40

-8

-7

-6

-5

-4

-3

-2

-1

0

1

2

3

10

29

00

0

10

29

02

8

10

29

05

7

10

29

12

6

10

29

15

5

10

29

22

4

10

29

25

2

10

29

32

1

10

29

35

0

10

29

41

9

10

29

44

8

10

29

51

6

10

29

54

5

10

29

61

4

10

29

64

3

cm

5cm shift of muon profile centroid

~80m parallel beam shift

Centroid of horizontal profile pit2

BENE08 2 Dec 2008E Gschwendtner ABATB

24

Muon Monitors Measurements vs Simulations

Excellent agreement

CNGS Facility ndash Performance 2008

pit 1 Horizontal

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 1

pit 1 Vertical

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Vertical Profile Pit 1 pit 2 Vertical

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Vertical Profile Pit 2

pit 2 Horizontal

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 2

P

Sal

a et

al

FLU

KA

sim

ulat

ion

s 20

08

MeasurementsSimulations

BENE08 2 Dec 2008E Gschwendtner ABATB

25

OPERA

BENE08 2 Dec 2008E Gschwendtner ABATB

26

bull Total target massndash 12 kton146621 emulsion-lead bricks

bull 2 super modules ndash Spectrometer 22 RPC planes in

magnetic field (15T) 6 Drift tube planes

ndash Target 27 lead emulsion brick walls alternated with scintillator planes

The OPERA DetectorOPERA Detector

BENE08 2 Dec 2008E Gschwendtner ABATB

27

OPERA Results 2008bull 10100 on-time eventsbull 1700 candidate interactions in bricks

Handling of 100 bricksweek

Up to 65 CSd scannedweek

CS delivered to the Scanning Stations

CS scanned

CS with a positive results

OPERA Results

Courtesy of D Autiero

BENE08 2 Dec 2008E Gschwendtner ABATB

28

Backward going charged particle(interesting as will allow to benchmark the MC simulation of back-scattering)

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

29

Outlook 2009bull 2009 Schedule CNGS physics start on 7 May 2009 total 175 days

Outlook

Protons on target in 2009 ~27middot1019 to ~5middot1019 potyr

Depends mainly on bull CNGS duty cyclebull beam intensityextraction

BENE08 2 Dec 2008E Gschwendtner ABATB

30

Multi-Turn-Extractionbull Novel extraction scheme from PS to SPS

ndash Beam is separated in the transverse phase space usingbull Nonlinear magnetic elements (sextupoles and octupoles) to create stable islandsbull Slow (adiabatic) tune-variation to cross an appropriate resonance

ndash Beneficial effectsbull No mechanical device to slice the beam losses are reducedbull The phase space matching is improved bull The beamlets have the same emittance and optical parameters

Five beamlets separated by 1 PS turn

Result of the first extraction test in the PS extraction line (TT2) with one bunch

Courtesy MTE project - M Giovannozzi et al

Evolution of the horizontal beam distribution during the splitting

MTE extracted beam has been provided to the SPS for the last night of CNGS run2009 Start with classical extraction parallel prepare MTE provide first SFTPRO then CNGS

Outlook

BENE08 2 Dec 2008E Gschwendtner ABATB

31

Summarybull Start-up issues of CNGS have been

overcomendash a lot of work

bull CNGS 2008 run was very successfulndash 178 1019 pot ndash 1700 candidate events in OPERAndash exploring limits of CNGS facility

bull 2009 ndash full year of high intensity operationndash First tau neutrino events

BENE08 2 Dec 2008E Gschwendtner ABATB

32

Thank You to all the colleagues for their effort to make CNGS a

success this year

AB Department TS Department SCRPCNGS Secondary Beam Working Group MTE Project Team

BENE08 2 Dec 2008E Gschwendtner ABATB

33

CNGS Radiation SimulationsHigh-E (gt20 MeV) hadron fluence for a nominal year (45 E19 pot)

A

Fe

rra

ri

L

Sa

rch

iap

on

e e

t a

l F

LU

KA

sim

ula

tio

ns

20

08

CNGS Facility ndash Startup Issues

Dose in Gray for a nominal year (45 E19 pot)

2007 no shielding

2008++lt 10 Gry

F 106

~10 Gry2007 no shielding

F 104

lt 106 hcm2yr2008++

~1010 hcm2yr

BENE08 2 Dec 2008E Gschwendtner ABATB

34

3 prong vertex in the bottom layer of the emulsion

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

35

kink=0204 rad

Event GalleryOPERA Results

Other particles with very short life-time Charmed mesons produced by interactions Can contribute to background in case the muon from charm decay is missed

21 expected charm events during 2007-2008Seen 2 charm-like topologies

D+

neutrals

- (undetected)

h+

  • CNGS Operation Results 2008
  • Slide 2
  • CERN Neutrinos to Gran Sasso
  • CNGS Timeline
  • CNGS Conventional Neutrino Beams
  • CNGS Proton Beam Parameters
  • CNGS Target
  • CNGS Horn and Reflector
  • Muon Monitors
  • Radiation Issues - 2007 CNGS Run
  • Modifications in Shutdown 200708 due to Radiation Issues
  • Photo Gallery- Motorized Shielding Plugs
  • Junction to Target Chamber
  • Slide 14
  • CNGS Polarity Puzzle
  • Slide 16
  • CNGS 2008 Performance and Results
  • CNGS Run 2008
  • Supercycle
  • CNGS Run 2008 18 June- 03 Nov 2008
  • SPS Efficiency for CNGS
  • Beam Intensity
  • Beam Stability
  • Muon Monitors Measurements vs Simulations
  • OPERA
  • The OPERA Detector
  • OPERA Results 2008
  • Slide 28
  • Outlook 2009
  • Multi-Turn-Extraction
  • Summary
  • Slide 32
  • CNGS Radiation Simulations
  • Event Gallery
  • Slide 35
Page 8: CNGS Operation Results 2008 Edda Gschwendtner AB/ATB on behalf of the CNGS team.

BENE08 2 Dec 2008E Gschwendtner ABATB

8

CNGS Horn and Reflector

bull 150kA180kA pulsedbull 7m long inner conductor 18mm thickbull Designed for 2107 pulsesbull Water cooling to evacuate 26kWbull 1 spare horn (no reflector yet)

Design featuresbull Water cooling circuit

ndash In situ spare easy switchbull ltlt1mSv total dose after 1y beam 1w stop

ndash Remote water connectionbull Remote handling amp electrical connections

ndash ltlt 1mSv total dose after 1y beam 1m stopbull Remote and quick polarity change

035 m

inner conductor

CNGS Facility ndash Layout and Main Parameters

BENE08 2 Dec 2008E Gschwendtner ABATB

9

60cm

270cm

1125cm

bull 2 x 41 fixed monitors (Ionization Chambers)

bull 2 x 1 movable monitor

LHC type Beam Loss Monitorsbull Stainless steel cylinder bull Al electrodes 05cm separation

bull N2 gas filling

CNGS

bull Muon Intensityndash Up to 8 107 cm2105s

CNGS Facility ndash Layout and Main Parameters

Muon Monitors

BENE08 2 Dec 2008E Gschwendtner ABATB

10

Radiation Issues - 2007 CNGS Run

bull During CNGS run 2007 ndash Failure in ventilation system installed in the

CNGS Service gallery due to radiation effects in electronics (SEU ndash Single Event Upsets- due to high energy hadron fluence) radiation levels predicted by simulations too high for off the shelf components -COTS

High-energy (gt20MeV) hadrons fluence (hcm2) for 45E19 pots

CNGS no surface building above CNGS target area large fraction of electronics in tunnel area

Ventilation units in the service gallery

CNGS Facility ndash Startup Issues

A Ferrari L Sarchiapone et al FLUKA simulations 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

11

Modifications in Shutdown 200708 due to Radiation Issues

1 Move as much electronics as possible out of CNGS tunnel area2 Create radiation safe area for electronics which needs to stay in CNGS3 Add shielding concrete walls up to 6m thick in total ~53m3 concrete

ndash Movable shielding plugs in TSG4 and TSG41 remotely controlled connected to access system will be opened before any access to CNGS is granted

ndash Bypass of ventilation ducts decrease radiation by up to a factor 106

Side effectndash CNGS triggered a large campaign for rad-hardness for LHCndash CNGS serves as test bed for parasitic irradiations of LHC and others

Target Chamber

ServiceGallery

Proton Beam Line target horn He tube 1 reflector He tube 2 decay tube

hellipelectronics equipment

Radiation lsquosafersquo area for electronics

TCV4

Parasitic LHC Radiation Test Facility

CNGS Facility ndash Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

12

Photo Gallery- Motorized Shielding PlugsPPP-TSG415 tons moves on 6 slope

PPP-TSG4120 tons moves on flat surface

Plugs connected to access system and remotely controlledOpen before an access to CNGS is granted

CNGS Facility ndash Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

13

Junction to Target Chamber

2007

2008

View from ventilation chamber into target chamber

2008

CNGS Facility ndash Startup Issues ndash Photo Gallery

2008

BENE08 2 Dec 2008E Gschwendtner ABATB

14

ABMB 14 Oct 2008E Gschwendtner ABATB

14

target

muon detectors pit 1

muon detectors pit 2

BENE08 2 Dec 2008E Gschwendtner ABATB

15

CNGS Polarity Puzzle

bull Observation of asymmetry in horizontal direction between

ndash Neutrino (focusing of mesons with positive charge)

ndash Anti-neutrino (focusing of mesons with negative charge)

270cm

1125cm

Muon DetectorMuon detectors very sensitive to any beam change ndashgive online feedback for neutrino beam quality

CNGS Facility ndash Beam Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

16

CNGS Polarity PuzzleExplanation Earth magnetic field in 1km long decay tube

ndash calculate B components in CNGS reference systemndash Partially shielding of magnetic field due to decay tube steel Results in shifts of the observed magnitude Measurements and simulations agree very well (absolute comparison within

5 in first muon pit)

Lines simulated fluxPoints measurementsNormalized to max=1

NeutrinoFocusing on

positive charge

Anti-neutrino Focusing on

negative charge

FL

UK

A s

imu

lati

on

s P

Sal

a et

al 2

008

CNGS Facility ndash Beam Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

17

CNGS 2008 Performance and Results

BENE08 2 Dec 2008E Gschwendtner ABATB

18

CNGS Run 2008

Excellent performance of the CNGS FacilityCNGS modifications finished successfully

bull no radiation problemseffects in the electronics during the entire run 2008

bull excellent hornreflector performance during 2008 run

Beam line equipment bull Working well and stable (target horns detectorshellip)

18 June ndash 3 November 2008 178middot1019 protons on target

OPERA experimentndash 10100 on-time eventsndash 1700 candidate interactions in bricks

CNGS Facility ndash Performance 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

19

Supercycle48s supercycleNorth Area 3 CNGS 1LHC1MD 375 CNGS duty cycle

504s supercycle7 CNGS 1 LHC 83 CNGS duty cycle

SFTPRO 3xCNGS LHC MD 4x CNGS2xCNGS MTECNGS

LHC

CNGS Facility ndash Performance 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

20

CNGS Run 2008 18 June- 03 Nov 2008

0

2E+18

4E+18

6E+18

8E+18

1E+19

12E+19

14E+19

16E+19

18E+19

18-J

un

28-J

un

8-J

ul

18-J

ul

28-J

ul

7-A

ug

17-A

ug

27-A

ug

6-S

ep

16-S

ep

26-S

ep

6-O

ct

16-O

ct

26-O

ct

5-N

ov

inte

gra

ted

po

t

Total 1781019 pot

18kV cable repair

MD

PS magnet exchange septum bakeout

MD

SPS timing faultvacuum leak amp magnet exchange

CNGS maintenance

SPS extraction line Magnet ground fault MD

CNGS maintenance

CNGS Facility ndash Performance 2008

Nominal 45 1019 potyr for 5 years

Beam to CNGSLHC FT MD

Beam to CNGSLHC FT

Beam to CNGS MD

BENE08 2 Dec 2008E Gschwendtner ABATB

21

SPS Efficiency for CNGSCNGS Facility ndash Performance 2008

Integrated efficiency 6094

BENE08 2 Dec 2008E Gschwendtner ABATB

22

Beam Intensity

SPS beam intensityextraction

Error rms spread

RF problems

Number of extractions during 2008 run

Almost 1 million - 995000

Intensity limitsbull Losses in the PSbull SPS RF

Typical transmission of the CNGS beam through the SPS cycle ~ 92Injection losses ~ 6

CNGS Facility ndash Performance 2008

Proton beam data courtesy of J Wenninger

BENE08 2 Dec 2008E Gschwendtner ABATB

23

Beam StabilityTarget Beam Positionbull Excellent position stability ~50microns over entire runbull No active position feedback is necessary

ndash 1-2 small steeringsweek only

CNGS Facility ndash Performance 2008

Beam Stability seen in Muon Monitorsbull Position stability of muon beam in pit 2 is ~3cm rmsbull Beam position correlated to beam position on target

ndash Parallel displacement of primary beam on T40

-8

-7

-6

-5

-4

-3

-2

-1

0

1

2

3

10

29

00

0

10

29

02

8

10

29

05

7

10

29

12

6

10

29

15

5

10

29

22

4

10

29

25

2

10

29

32

1

10

29

35

0

10

29

41

9

10

29

44

8

10

29

51

6

10

29

54

5

10

29

61

4

10

29

64

3

cm

5cm shift of muon profile centroid

~80m parallel beam shift

Centroid of horizontal profile pit2

BENE08 2 Dec 2008E Gschwendtner ABATB

24

Muon Monitors Measurements vs Simulations

Excellent agreement

CNGS Facility ndash Performance 2008

pit 1 Horizontal

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 1

pit 1 Vertical

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Vertical Profile Pit 1 pit 2 Vertical

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Vertical Profile Pit 2

pit 2 Horizontal

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 2

P

Sal

a et

al

FLU

KA

sim

ulat

ion

s 20

08

MeasurementsSimulations

BENE08 2 Dec 2008E Gschwendtner ABATB

25

OPERA

BENE08 2 Dec 2008E Gschwendtner ABATB

26

bull Total target massndash 12 kton146621 emulsion-lead bricks

bull 2 super modules ndash Spectrometer 22 RPC planes in

magnetic field (15T) 6 Drift tube planes

ndash Target 27 lead emulsion brick walls alternated with scintillator planes

The OPERA DetectorOPERA Detector

BENE08 2 Dec 2008E Gschwendtner ABATB

27

OPERA Results 2008bull 10100 on-time eventsbull 1700 candidate interactions in bricks

Handling of 100 bricksweek

Up to 65 CSd scannedweek

CS delivered to the Scanning Stations

CS scanned

CS with a positive results

OPERA Results

Courtesy of D Autiero

BENE08 2 Dec 2008E Gschwendtner ABATB

28

Backward going charged particle(interesting as will allow to benchmark the MC simulation of back-scattering)

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

29

Outlook 2009bull 2009 Schedule CNGS physics start on 7 May 2009 total 175 days

Outlook

Protons on target in 2009 ~27middot1019 to ~5middot1019 potyr

Depends mainly on bull CNGS duty cyclebull beam intensityextraction

BENE08 2 Dec 2008E Gschwendtner ABATB

30

Multi-Turn-Extractionbull Novel extraction scheme from PS to SPS

ndash Beam is separated in the transverse phase space usingbull Nonlinear magnetic elements (sextupoles and octupoles) to create stable islandsbull Slow (adiabatic) tune-variation to cross an appropriate resonance

ndash Beneficial effectsbull No mechanical device to slice the beam losses are reducedbull The phase space matching is improved bull The beamlets have the same emittance and optical parameters

Five beamlets separated by 1 PS turn

Result of the first extraction test in the PS extraction line (TT2) with one bunch

Courtesy MTE project - M Giovannozzi et al

Evolution of the horizontal beam distribution during the splitting

MTE extracted beam has been provided to the SPS for the last night of CNGS run2009 Start with classical extraction parallel prepare MTE provide first SFTPRO then CNGS

Outlook

BENE08 2 Dec 2008E Gschwendtner ABATB

31

Summarybull Start-up issues of CNGS have been

overcomendash a lot of work

bull CNGS 2008 run was very successfulndash 178 1019 pot ndash 1700 candidate events in OPERAndash exploring limits of CNGS facility

bull 2009 ndash full year of high intensity operationndash First tau neutrino events

BENE08 2 Dec 2008E Gschwendtner ABATB

32

Thank You to all the colleagues for their effort to make CNGS a

success this year

AB Department TS Department SCRPCNGS Secondary Beam Working Group MTE Project Team

BENE08 2 Dec 2008E Gschwendtner ABATB

33

CNGS Radiation SimulationsHigh-E (gt20 MeV) hadron fluence for a nominal year (45 E19 pot)

A

Fe

rra

ri

L

Sa

rch

iap

on

e e

t a

l F

LU

KA

sim

ula

tio

ns

20

08

CNGS Facility ndash Startup Issues

Dose in Gray for a nominal year (45 E19 pot)

2007 no shielding

2008++lt 10 Gry

F 106

~10 Gry2007 no shielding

F 104

lt 106 hcm2yr2008++

~1010 hcm2yr

BENE08 2 Dec 2008E Gschwendtner ABATB

34

3 prong vertex in the bottom layer of the emulsion

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

35

kink=0204 rad

Event GalleryOPERA Results

Other particles with very short life-time Charmed mesons produced by interactions Can contribute to background in case the muon from charm decay is missed

21 expected charm events during 2007-2008Seen 2 charm-like topologies

D+

neutrals

- (undetected)

h+

  • CNGS Operation Results 2008
  • Slide 2
  • CERN Neutrinos to Gran Sasso
  • CNGS Timeline
  • CNGS Conventional Neutrino Beams
  • CNGS Proton Beam Parameters
  • CNGS Target
  • CNGS Horn and Reflector
  • Muon Monitors
  • Radiation Issues - 2007 CNGS Run
  • Modifications in Shutdown 200708 due to Radiation Issues
  • Photo Gallery- Motorized Shielding Plugs
  • Junction to Target Chamber
  • Slide 14
  • CNGS Polarity Puzzle
  • Slide 16
  • CNGS 2008 Performance and Results
  • CNGS Run 2008
  • Supercycle
  • CNGS Run 2008 18 June- 03 Nov 2008
  • SPS Efficiency for CNGS
  • Beam Intensity
  • Beam Stability
  • Muon Monitors Measurements vs Simulations
  • OPERA
  • The OPERA Detector
  • OPERA Results 2008
  • Slide 28
  • Outlook 2009
  • Multi-Turn-Extraction
  • Summary
  • Slide 32
  • CNGS Radiation Simulations
  • Event Gallery
  • Slide 35
Page 9: CNGS Operation Results 2008 Edda Gschwendtner AB/ATB on behalf of the CNGS team.

BENE08 2 Dec 2008E Gschwendtner ABATB

9

60cm

270cm

1125cm

bull 2 x 41 fixed monitors (Ionization Chambers)

bull 2 x 1 movable monitor

LHC type Beam Loss Monitorsbull Stainless steel cylinder bull Al electrodes 05cm separation

bull N2 gas filling

CNGS

bull Muon Intensityndash Up to 8 107 cm2105s

CNGS Facility ndash Layout and Main Parameters

Muon Monitors

BENE08 2 Dec 2008E Gschwendtner ABATB

10

Radiation Issues - 2007 CNGS Run

bull During CNGS run 2007 ndash Failure in ventilation system installed in the

CNGS Service gallery due to radiation effects in electronics (SEU ndash Single Event Upsets- due to high energy hadron fluence) radiation levels predicted by simulations too high for off the shelf components -COTS

High-energy (gt20MeV) hadrons fluence (hcm2) for 45E19 pots

CNGS no surface building above CNGS target area large fraction of electronics in tunnel area

Ventilation units in the service gallery

CNGS Facility ndash Startup Issues

A Ferrari L Sarchiapone et al FLUKA simulations 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

11

Modifications in Shutdown 200708 due to Radiation Issues

1 Move as much electronics as possible out of CNGS tunnel area2 Create radiation safe area for electronics which needs to stay in CNGS3 Add shielding concrete walls up to 6m thick in total ~53m3 concrete

ndash Movable shielding plugs in TSG4 and TSG41 remotely controlled connected to access system will be opened before any access to CNGS is granted

ndash Bypass of ventilation ducts decrease radiation by up to a factor 106

Side effectndash CNGS triggered a large campaign for rad-hardness for LHCndash CNGS serves as test bed for parasitic irradiations of LHC and others

Target Chamber

ServiceGallery

Proton Beam Line target horn He tube 1 reflector He tube 2 decay tube

hellipelectronics equipment

Radiation lsquosafersquo area for electronics

TCV4

Parasitic LHC Radiation Test Facility

CNGS Facility ndash Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

12

Photo Gallery- Motorized Shielding PlugsPPP-TSG415 tons moves on 6 slope

PPP-TSG4120 tons moves on flat surface

Plugs connected to access system and remotely controlledOpen before an access to CNGS is granted

CNGS Facility ndash Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

13

Junction to Target Chamber

2007

2008

View from ventilation chamber into target chamber

2008

CNGS Facility ndash Startup Issues ndash Photo Gallery

2008

BENE08 2 Dec 2008E Gschwendtner ABATB

14

ABMB 14 Oct 2008E Gschwendtner ABATB

14

target

muon detectors pit 1

muon detectors pit 2

BENE08 2 Dec 2008E Gschwendtner ABATB

15

CNGS Polarity Puzzle

bull Observation of asymmetry in horizontal direction between

ndash Neutrino (focusing of mesons with positive charge)

ndash Anti-neutrino (focusing of mesons with negative charge)

270cm

1125cm

Muon DetectorMuon detectors very sensitive to any beam change ndashgive online feedback for neutrino beam quality

CNGS Facility ndash Beam Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

16

CNGS Polarity PuzzleExplanation Earth magnetic field in 1km long decay tube

ndash calculate B components in CNGS reference systemndash Partially shielding of magnetic field due to decay tube steel Results in shifts of the observed magnitude Measurements and simulations agree very well (absolute comparison within

5 in first muon pit)

Lines simulated fluxPoints measurementsNormalized to max=1

NeutrinoFocusing on

positive charge

Anti-neutrino Focusing on

negative charge

FL

UK

A s

imu

lati

on

s P

Sal

a et

al 2

008

CNGS Facility ndash Beam Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

17

CNGS 2008 Performance and Results

BENE08 2 Dec 2008E Gschwendtner ABATB

18

CNGS Run 2008

Excellent performance of the CNGS FacilityCNGS modifications finished successfully

bull no radiation problemseffects in the electronics during the entire run 2008

bull excellent hornreflector performance during 2008 run

Beam line equipment bull Working well and stable (target horns detectorshellip)

18 June ndash 3 November 2008 178middot1019 protons on target

OPERA experimentndash 10100 on-time eventsndash 1700 candidate interactions in bricks

CNGS Facility ndash Performance 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

19

Supercycle48s supercycleNorth Area 3 CNGS 1LHC1MD 375 CNGS duty cycle

504s supercycle7 CNGS 1 LHC 83 CNGS duty cycle

SFTPRO 3xCNGS LHC MD 4x CNGS2xCNGS MTECNGS

LHC

CNGS Facility ndash Performance 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

20

CNGS Run 2008 18 June- 03 Nov 2008

0

2E+18

4E+18

6E+18

8E+18

1E+19

12E+19

14E+19

16E+19

18E+19

18-J

un

28-J

un

8-J

ul

18-J

ul

28-J

ul

7-A

ug

17-A

ug

27-A

ug

6-S

ep

16-S

ep

26-S

ep

6-O

ct

16-O

ct

26-O

ct

5-N

ov

inte

gra

ted

po

t

Total 1781019 pot

18kV cable repair

MD

PS magnet exchange septum bakeout

MD

SPS timing faultvacuum leak amp magnet exchange

CNGS maintenance

SPS extraction line Magnet ground fault MD

CNGS maintenance

CNGS Facility ndash Performance 2008

Nominal 45 1019 potyr for 5 years

Beam to CNGSLHC FT MD

Beam to CNGSLHC FT

Beam to CNGS MD

BENE08 2 Dec 2008E Gschwendtner ABATB

21

SPS Efficiency for CNGSCNGS Facility ndash Performance 2008

Integrated efficiency 6094

BENE08 2 Dec 2008E Gschwendtner ABATB

22

Beam Intensity

SPS beam intensityextraction

Error rms spread

RF problems

Number of extractions during 2008 run

Almost 1 million - 995000

Intensity limitsbull Losses in the PSbull SPS RF

Typical transmission of the CNGS beam through the SPS cycle ~ 92Injection losses ~ 6

CNGS Facility ndash Performance 2008

Proton beam data courtesy of J Wenninger

BENE08 2 Dec 2008E Gschwendtner ABATB

23

Beam StabilityTarget Beam Positionbull Excellent position stability ~50microns over entire runbull No active position feedback is necessary

ndash 1-2 small steeringsweek only

CNGS Facility ndash Performance 2008

Beam Stability seen in Muon Monitorsbull Position stability of muon beam in pit 2 is ~3cm rmsbull Beam position correlated to beam position on target

ndash Parallel displacement of primary beam on T40

-8

-7

-6

-5

-4

-3

-2

-1

0

1

2

3

10

29

00

0

10

29

02

8

10

29

05

7

10

29

12

6

10

29

15

5

10

29

22

4

10

29

25

2

10

29

32

1

10

29

35

0

10

29

41

9

10

29

44

8

10

29

51

6

10

29

54

5

10

29

61

4

10

29

64

3

cm

5cm shift of muon profile centroid

~80m parallel beam shift

Centroid of horizontal profile pit2

BENE08 2 Dec 2008E Gschwendtner ABATB

24

Muon Monitors Measurements vs Simulations

Excellent agreement

CNGS Facility ndash Performance 2008

pit 1 Horizontal

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 1

pit 1 Vertical

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Vertical Profile Pit 1 pit 2 Vertical

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Vertical Profile Pit 2

pit 2 Horizontal

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 2

P

Sal

a et

al

FLU

KA

sim

ulat

ion

s 20

08

MeasurementsSimulations

BENE08 2 Dec 2008E Gschwendtner ABATB

25

OPERA

BENE08 2 Dec 2008E Gschwendtner ABATB

26

bull Total target massndash 12 kton146621 emulsion-lead bricks

bull 2 super modules ndash Spectrometer 22 RPC planes in

magnetic field (15T) 6 Drift tube planes

ndash Target 27 lead emulsion brick walls alternated with scintillator planes

The OPERA DetectorOPERA Detector

BENE08 2 Dec 2008E Gschwendtner ABATB

27

OPERA Results 2008bull 10100 on-time eventsbull 1700 candidate interactions in bricks

Handling of 100 bricksweek

Up to 65 CSd scannedweek

CS delivered to the Scanning Stations

CS scanned

CS with a positive results

OPERA Results

Courtesy of D Autiero

BENE08 2 Dec 2008E Gschwendtner ABATB

28

Backward going charged particle(interesting as will allow to benchmark the MC simulation of back-scattering)

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

29

Outlook 2009bull 2009 Schedule CNGS physics start on 7 May 2009 total 175 days

Outlook

Protons on target in 2009 ~27middot1019 to ~5middot1019 potyr

Depends mainly on bull CNGS duty cyclebull beam intensityextraction

BENE08 2 Dec 2008E Gschwendtner ABATB

30

Multi-Turn-Extractionbull Novel extraction scheme from PS to SPS

ndash Beam is separated in the transverse phase space usingbull Nonlinear magnetic elements (sextupoles and octupoles) to create stable islandsbull Slow (adiabatic) tune-variation to cross an appropriate resonance

ndash Beneficial effectsbull No mechanical device to slice the beam losses are reducedbull The phase space matching is improved bull The beamlets have the same emittance and optical parameters

Five beamlets separated by 1 PS turn

Result of the first extraction test in the PS extraction line (TT2) with one bunch

Courtesy MTE project - M Giovannozzi et al

Evolution of the horizontal beam distribution during the splitting

MTE extracted beam has been provided to the SPS for the last night of CNGS run2009 Start with classical extraction parallel prepare MTE provide first SFTPRO then CNGS

Outlook

BENE08 2 Dec 2008E Gschwendtner ABATB

31

Summarybull Start-up issues of CNGS have been

overcomendash a lot of work

bull CNGS 2008 run was very successfulndash 178 1019 pot ndash 1700 candidate events in OPERAndash exploring limits of CNGS facility

bull 2009 ndash full year of high intensity operationndash First tau neutrino events

BENE08 2 Dec 2008E Gschwendtner ABATB

32

Thank You to all the colleagues for their effort to make CNGS a

success this year

AB Department TS Department SCRPCNGS Secondary Beam Working Group MTE Project Team

BENE08 2 Dec 2008E Gschwendtner ABATB

33

CNGS Radiation SimulationsHigh-E (gt20 MeV) hadron fluence for a nominal year (45 E19 pot)

A

Fe

rra

ri

L

Sa

rch

iap

on

e e

t a

l F

LU

KA

sim

ula

tio

ns

20

08

CNGS Facility ndash Startup Issues

Dose in Gray for a nominal year (45 E19 pot)

2007 no shielding

2008++lt 10 Gry

F 106

~10 Gry2007 no shielding

F 104

lt 106 hcm2yr2008++

~1010 hcm2yr

BENE08 2 Dec 2008E Gschwendtner ABATB

34

3 prong vertex in the bottom layer of the emulsion

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

35

kink=0204 rad

Event GalleryOPERA Results

Other particles with very short life-time Charmed mesons produced by interactions Can contribute to background in case the muon from charm decay is missed

21 expected charm events during 2007-2008Seen 2 charm-like topologies

D+

neutrals

- (undetected)

h+

  • CNGS Operation Results 2008
  • Slide 2
  • CERN Neutrinos to Gran Sasso
  • CNGS Timeline
  • CNGS Conventional Neutrino Beams
  • CNGS Proton Beam Parameters
  • CNGS Target
  • CNGS Horn and Reflector
  • Muon Monitors
  • Radiation Issues - 2007 CNGS Run
  • Modifications in Shutdown 200708 due to Radiation Issues
  • Photo Gallery- Motorized Shielding Plugs
  • Junction to Target Chamber
  • Slide 14
  • CNGS Polarity Puzzle
  • Slide 16
  • CNGS 2008 Performance and Results
  • CNGS Run 2008
  • Supercycle
  • CNGS Run 2008 18 June- 03 Nov 2008
  • SPS Efficiency for CNGS
  • Beam Intensity
  • Beam Stability
  • Muon Monitors Measurements vs Simulations
  • OPERA
  • The OPERA Detector
  • OPERA Results 2008
  • Slide 28
  • Outlook 2009
  • Multi-Turn-Extraction
  • Summary
  • Slide 32
  • CNGS Radiation Simulations
  • Event Gallery
  • Slide 35
Page 10: CNGS Operation Results 2008 Edda Gschwendtner AB/ATB on behalf of the CNGS team.

BENE08 2 Dec 2008E Gschwendtner ABATB

10

Radiation Issues - 2007 CNGS Run

bull During CNGS run 2007 ndash Failure in ventilation system installed in the

CNGS Service gallery due to radiation effects in electronics (SEU ndash Single Event Upsets- due to high energy hadron fluence) radiation levels predicted by simulations too high for off the shelf components -COTS

High-energy (gt20MeV) hadrons fluence (hcm2) for 45E19 pots

CNGS no surface building above CNGS target area large fraction of electronics in tunnel area

Ventilation units in the service gallery

CNGS Facility ndash Startup Issues

A Ferrari L Sarchiapone et al FLUKA simulations 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

11

Modifications in Shutdown 200708 due to Radiation Issues

1 Move as much electronics as possible out of CNGS tunnel area2 Create radiation safe area for electronics which needs to stay in CNGS3 Add shielding concrete walls up to 6m thick in total ~53m3 concrete

ndash Movable shielding plugs in TSG4 and TSG41 remotely controlled connected to access system will be opened before any access to CNGS is granted

ndash Bypass of ventilation ducts decrease radiation by up to a factor 106

Side effectndash CNGS triggered a large campaign for rad-hardness for LHCndash CNGS serves as test bed for parasitic irradiations of LHC and others

Target Chamber

ServiceGallery

Proton Beam Line target horn He tube 1 reflector He tube 2 decay tube

hellipelectronics equipment

Radiation lsquosafersquo area for electronics

TCV4

Parasitic LHC Radiation Test Facility

CNGS Facility ndash Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

12

Photo Gallery- Motorized Shielding PlugsPPP-TSG415 tons moves on 6 slope

PPP-TSG4120 tons moves on flat surface

Plugs connected to access system and remotely controlledOpen before an access to CNGS is granted

CNGS Facility ndash Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

13

Junction to Target Chamber

2007

2008

View from ventilation chamber into target chamber

2008

CNGS Facility ndash Startup Issues ndash Photo Gallery

2008

BENE08 2 Dec 2008E Gschwendtner ABATB

14

ABMB 14 Oct 2008E Gschwendtner ABATB

14

target

muon detectors pit 1

muon detectors pit 2

BENE08 2 Dec 2008E Gschwendtner ABATB

15

CNGS Polarity Puzzle

bull Observation of asymmetry in horizontal direction between

ndash Neutrino (focusing of mesons with positive charge)

ndash Anti-neutrino (focusing of mesons with negative charge)

270cm

1125cm

Muon DetectorMuon detectors very sensitive to any beam change ndashgive online feedback for neutrino beam quality

CNGS Facility ndash Beam Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

16

CNGS Polarity PuzzleExplanation Earth magnetic field in 1km long decay tube

ndash calculate B components in CNGS reference systemndash Partially shielding of magnetic field due to decay tube steel Results in shifts of the observed magnitude Measurements and simulations agree very well (absolute comparison within

5 in first muon pit)

Lines simulated fluxPoints measurementsNormalized to max=1

NeutrinoFocusing on

positive charge

Anti-neutrino Focusing on

negative charge

FL

UK

A s

imu

lati

on

s P

Sal

a et

al 2

008

CNGS Facility ndash Beam Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

17

CNGS 2008 Performance and Results

BENE08 2 Dec 2008E Gschwendtner ABATB

18

CNGS Run 2008

Excellent performance of the CNGS FacilityCNGS modifications finished successfully

bull no radiation problemseffects in the electronics during the entire run 2008

bull excellent hornreflector performance during 2008 run

Beam line equipment bull Working well and stable (target horns detectorshellip)

18 June ndash 3 November 2008 178middot1019 protons on target

OPERA experimentndash 10100 on-time eventsndash 1700 candidate interactions in bricks

CNGS Facility ndash Performance 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

19

Supercycle48s supercycleNorth Area 3 CNGS 1LHC1MD 375 CNGS duty cycle

504s supercycle7 CNGS 1 LHC 83 CNGS duty cycle

SFTPRO 3xCNGS LHC MD 4x CNGS2xCNGS MTECNGS

LHC

CNGS Facility ndash Performance 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

20

CNGS Run 2008 18 June- 03 Nov 2008

0

2E+18

4E+18

6E+18

8E+18

1E+19

12E+19

14E+19

16E+19

18E+19

18-J

un

28-J

un

8-J

ul

18-J

ul

28-J

ul

7-A

ug

17-A

ug

27-A

ug

6-S

ep

16-S

ep

26-S

ep

6-O

ct

16-O

ct

26-O

ct

5-N

ov

inte

gra

ted

po

t

Total 1781019 pot

18kV cable repair

MD

PS magnet exchange septum bakeout

MD

SPS timing faultvacuum leak amp magnet exchange

CNGS maintenance

SPS extraction line Magnet ground fault MD

CNGS maintenance

CNGS Facility ndash Performance 2008

Nominal 45 1019 potyr for 5 years

Beam to CNGSLHC FT MD

Beam to CNGSLHC FT

Beam to CNGS MD

BENE08 2 Dec 2008E Gschwendtner ABATB

21

SPS Efficiency for CNGSCNGS Facility ndash Performance 2008

Integrated efficiency 6094

BENE08 2 Dec 2008E Gschwendtner ABATB

22

Beam Intensity

SPS beam intensityextraction

Error rms spread

RF problems

Number of extractions during 2008 run

Almost 1 million - 995000

Intensity limitsbull Losses in the PSbull SPS RF

Typical transmission of the CNGS beam through the SPS cycle ~ 92Injection losses ~ 6

CNGS Facility ndash Performance 2008

Proton beam data courtesy of J Wenninger

BENE08 2 Dec 2008E Gschwendtner ABATB

23

Beam StabilityTarget Beam Positionbull Excellent position stability ~50microns over entire runbull No active position feedback is necessary

ndash 1-2 small steeringsweek only

CNGS Facility ndash Performance 2008

Beam Stability seen in Muon Monitorsbull Position stability of muon beam in pit 2 is ~3cm rmsbull Beam position correlated to beam position on target

ndash Parallel displacement of primary beam on T40

-8

-7

-6

-5

-4

-3

-2

-1

0

1

2

3

10

29

00

0

10

29

02

8

10

29

05

7

10

29

12

6

10

29

15

5

10

29

22

4

10

29

25

2

10

29

32

1

10

29

35

0

10

29

41

9

10

29

44

8

10

29

51

6

10

29

54

5

10

29

61

4

10

29

64

3

cm

5cm shift of muon profile centroid

~80m parallel beam shift

Centroid of horizontal profile pit2

BENE08 2 Dec 2008E Gschwendtner ABATB

24

Muon Monitors Measurements vs Simulations

Excellent agreement

CNGS Facility ndash Performance 2008

pit 1 Horizontal

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 1

pit 1 Vertical

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Vertical Profile Pit 1 pit 2 Vertical

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Vertical Profile Pit 2

pit 2 Horizontal

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 2

P

Sal

a et

al

FLU

KA

sim

ulat

ion

s 20

08

MeasurementsSimulations

BENE08 2 Dec 2008E Gschwendtner ABATB

25

OPERA

BENE08 2 Dec 2008E Gschwendtner ABATB

26

bull Total target massndash 12 kton146621 emulsion-lead bricks

bull 2 super modules ndash Spectrometer 22 RPC planes in

magnetic field (15T) 6 Drift tube planes

ndash Target 27 lead emulsion brick walls alternated with scintillator planes

The OPERA DetectorOPERA Detector

BENE08 2 Dec 2008E Gschwendtner ABATB

27

OPERA Results 2008bull 10100 on-time eventsbull 1700 candidate interactions in bricks

Handling of 100 bricksweek

Up to 65 CSd scannedweek

CS delivered to the Scanning Stations

CS scanned

CS with a positive results

OPERA Results

Courtesy of D Autiero

BENE08 2 Dec 2008E Gschwendtner ABATB

28

Backward going charged particle(interesting as will allow to benchmark the MC simulation of back-scattering)

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

29

Outlook 2009bull 2009 Schedule CNGS physics start on 7 May 2009 total 175 days

Outlook

Protons on target in 2009 ~27middot1019 to ~5middot1019 potyr

Depends mainly on bull CNGS duty cyclebull beam intensityextraction

BENE08 2 Dec 2008E Gschwendtner ABATB

30

Multi-Turn-Extractionbull Novel extraction scheme from PS to SPS

ndash Beam is separated in the transverse phase space usingbull Nonlinear magnetic elements (sextupoles and octupoles) to create stable islandsbull Slow (adiabatic) tune-variation to cross an appropriate resonance

ndash Beneficial effectsbull No mechanical device to slice the beam losses are reducedbull The phase space matching is improved bull The beamlets have the same emittance and optical parameters

Five beamlets separated by 1 PS turn

Result of the first extraction test in the PS extraction line (TT2) with one bunch

Courtesy MTE project - M Giovannozzi et al

Evolution of the horizontal beam distribution during the splitting

MTE extracted beam has been provided to the SPS for the last night of CNGS run2009 Start with classical extraction parallel prepare MTE provide first SFTPRO then CNGS

Outlook

BENE08 2 Dec 2008E Gschwendtner ABATB

31

Summarybull Start-up issues of CNGS have been

overcomendash a lot of work

bull CNGS 2008 run was very successfulndash 178 1019 pot ndash 1700 candidate events in OPERAndash exploring limits of CNGS facility

bull 2009 ndash full year of high intensity operationndash First tau neutrino events

BENE08 2 Dec 2008E Gschwendtner ABATB

32

Thank You to all the colleagues for their effort to make CNGS a

success this year

AB Department TS Department SCRPCNGS Secondary Beam Working Group MTE Project Team

BENE08 2 Dec 2008E Gschwendtner ABATB

33

CNGS Radiation SimulationsHigh-E (gt20 MeV) hadron fluence for a nominal year (45 E19 pot)

A

Fe

rra

ri

L

Sa

rch

iap

on

e e

t a

l F

LU

KA

sim

ula

tio

ns

20

08

CNGS Facility ndash Startup Issues

Dose in Gray for a nominal year (45 E19 pot)

2007 no shielding

2008++lt 10 Gry

F 106

~10 Gry2007 no shielding

F 104

lt 106 hcm2yr2008++

~1010 hcm2yr

BENE08 2 Dec 2008E Gschwendtner ABATB

34

3 prong vertex in the bottom layer of the emulsion

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

35

kink=0204 rad

Event GalleryOPERA Results

Other particles with very short life-time Charmed mesons produced by interactions Can contribute to background in case the muon from charm decay is missed

21 expected charm events during 2007-2008Seen 2 charm-like topologies

D+

neutrals

- (undetected)

h+

  • CNGS Operation Results 2008
  • Slide 2
  • CERN Neutrinos to Gran Sasso
  • CNGS Timeline
  • CNGS Conventional Neutrino Beams
  • CNGS Proton Beam Parameters
  • CNGS Target
  • CNGS Horn and Reflector
  • Muon Monitors
  • Radiation Issues - 2007 CNGS Run
  • Modifications in Shutdown 200708 due to Radiation Issues
  • Photo Gallery- Motorized Shielding Plugs
  • Junction to Target Chamber
  • Slide 14
  • CNGS Polarity Puzzle
  • Slide 16
  • CNGS 2008 Performance and Results
  • CNGS Run 2008
  • Supercycle
  • CNGS Run 2008 18 June- 03 Nov 2008
  • SPS Efficiency for CNGS
  • Beam Intensity
  • Beam Stability
  • Muon Monitors Measurements vs Simulations
  • OPERA
  • The OPERA Detector
  • OPERA Results 2008
  • Slide 28
  • Outlook 2009
  • Multi-Turn-Extraction
  • Summary
  • Slide 32
  • CNGS Radiation Simulations
  • Event Gallery
  • Slide 35
Page 11: CNGS Operation Results 2008 Edda Gschwendtner AB/ATB on behalf of the CNGS team.

BENE08 2 Dec 2008E Gschwendtner ABATB

11

Modifications in Shutdown 200708 due to Radiation Issues

1 Move as much electronics as possible out of CNGS tunnel area2 Create radiation safe area for electronics which needs to stay in CNGS3 Add shielding concrete walls up to 6m thick in total ~53m3 concrete

ndash Movable shielding plugs in TSG4 and TSG41 remotely controlled connected to access system will be opened before any access to CNGS is granted

ndash Bypass of ventilation ducts decrease radiation by up to a factor 106

Side effectndash CNGS triggered a large campaign for rad-hardness for LHCndash CNGS serves as test bed for parasitic irradiations of LHC and others

Target Chamber

ServiceGallery

Proton Beam Line target horn He tube 1 reflector He tube 2 decay tube

hellipelectronics equipment

Radiation lsquosafersquo area for electronics

TCV4

Parasitic LHC Radiation Test Facility

CNGS Facility ndash Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

12

Photo Gallery- Motorized Shielding PlugsPPP-TSG415 tons moves on 6 slope

PPP-TSG4120 tons moves on flat surface

Plugs connected to access system and remotely controlledOpen before an access to CNGS is granted

CNGS Facility ndash Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

13

Junction to Target Chamber

2007

2008

View from ventilation chamber into target chamber

2008

CNGS Facility ndash Startup Issues ndash Photo Gallery

2008

BENE08 2 Dec 2008E Gschwendtner ABATB

14

ABMB 14 Oct 2008E Gschwendtner ABATB

14

target

muon detectors pit 1

muon detectors pit 2

BENE08 2 Dec 2008E Gschwendtner ABATB

15

CNGS Polarity Puzzle

bull Observation of asymmetry in horizontal direction between

ndash Neutrino (focusing of mesons with positive charge)

ndash Anti-neutrino (focusing of mesons with negative charge)

270cm

1125cm

Muon DetectorMuon detectors very sensitive to any beam change ndashgive online feedback for neutrino beam quality

CNGS Facility ndash Beam Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

16

CNGS Polarity PuzzleExplanation Earth magnetic field in 1km long decay tube

ndash calculate B components in CNGS reference systemndash Partially shielding of magnetic field due to decay tube steel Results in shifts of the observed magnitude Measurements and simulations agree very well (absolute comparison within

5 in first muon pit)

Lines simulated fluxPoints measurementsNormalized to max=1

NeutrinoFocusing on

positive charge

Anti-neutrino Focusing on

negative charge

FL

UK

A s

imu

lati

on

s P

Sal

a et

al 2

008

CNGS Facility ndash Beam Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

17

CNGS 2008 Performance and Results

BENE08 2 Dec 2008E Gschwendtner ABATB

18

CNGS Run 2008

Excellent performance of the CNGS FacilityCNGS modifications finished successfully

bull no radiation problemseffects in the electronics during the entire run 2008

bull excellent hornreflector performance during 2008 run

Beam line equipment bull Working well and stable (target horns detectorshellip)

18 June ndash 3 November 2008 178middot1019 protons on target

OPERA experimentndash 10100 on-time eventsndash 1700 candidate interactions in bricks

CNGS Facility ndash Performance 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

19

Supercycle48s supercycleNorth Area 3 CNGS 1LHC1MD 375 CNGS duty cycle

504s supercycle7 CNGS 1 LHC 83 CNGS duty cycle

SFTPRO 3xCNGS LHC MD 4x CNGS2xCNGS MTECNGS

LHC

CNGS Facility ndash Performance 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

20

CNGS Run 2008 18 June- 03 Nov 2008

0

2E+18

4E+18

6E+18

8E+18

1E+19

12E+19

14E+19

16E+19

18E+19

18-J

un

28-J

un

8-J

ul

18-J

ul

28-J

ul

7-A

ug

17-A

ug

27-A

ug

6-S

ep

16-S

ep

26-S

ep

6-O

ct

16-O

ct

26-O

ct

5-N

ov

inte

gra

ted

po

t

Total 1781019 pot

18kV cable repair

MD

PS magnet exchange septum bakeout

MD

SPS timing faultvacuum leak amp magnet exchange

CNGS maintenance

SPS extraction line Magnet ground fault MD

CNGS maintenance

CNGS Facility ndash Performance 2008

Nominal 45 1019 potyr for 5 years

Beam to CNGSLHC FT MD

Beam to CNGSLHC FT

Beam to CNGS MD

BENE08 2 Dec 2008E Gschwendtner ABATB

21

SPS Efficiency for CNGSCNGS Facility ndash Performance 2008

Integrated efficiency 6094

BENE08 2 Dec 2008E Gschwendtner ABATB

22

Beam Intensity

SPS beam intensityextraction

Error rms spread

RF problems

Number of extractions during 2008 run

Almost 1 million - 995000

Intensity limitsbull Losses in the PSbull SPS RF

Typical transmission of the CNGS beam through the SPS cycle ~ 92Injection losses ~ 6

CNGS Facility ndash Performance 2008

Proton beam data courtesy of J Wenninger

BENE08 2 Dec 2008E Gschwendtner ABATB

23

Beam StabilityTarget Beam Positionbull Excellent position stability ~50microns over entire runbull No active position feedback is necessary

ndash 1-2 small steeringsweek only

CNGS Facility ndash Performance 2008

Beam Stability seen in Muon Monitorsbull Position stability of muon beam in pit 2 is ~3cm rmsbull Beam position correlated to beam position on target

ndash Parallel displacement of primary beam on T40

-8

-7

-6

-5

-4

-3

-2

-1

0

1

2

3

10

29

00

0

10

29

02

8

10

29

05

7

10

29

12

6

10

29

15

5

10

29

22

4

10

29

25

2

10

29

32

1

10

29

35

0

10

29

41

9

10

29

44

8

10

29

51

6

10

29

54

5

10

29

61

4

10

29

64

3

cm

5cm shift of muon profile centroid

~80m parallel beam shift

Centroid of horizontal profile pit2

BENE08 2 Dec 2008E Gschwendtner ABATB

24

Muon Monitors Measurements vs Simulations

Excellent agreement

CNGS Facility ndash Performance 2008

pit 1 Horizontal

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 1

pit 1 Vertical

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Vertical Profile Pit 1 pit 2 Vertical

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Vertical Profile Pit 2

pit 2 Horizontal

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 2

P

Sal

a et

al

FLU

KA

sim

ulat

ion

s 20

08

MeasurementsSimulations

BENE08 2 Dec 2008E Gschwendtner ABATB

25

OPERA

BENE08 2 Dec 2008E Gschwendtner ABATB

26

bull Total target massndash 12 kton146621 emulsion-lead bricks

bull 2 super modules ndash Spectrometer 22 RPC planes in

magnetic field (15T) 6 Drift tube planes

ndash Target 27 lead emulsion brick walls alternated with scintillator planes

The OPERA DetectorOPERA Detector

BENE08 2 Dec 2008E Gschwendtner ABATB

27

OPERA Results 2008bull 10100 on-time eventsbull 1700 candidate interactions in bricks

Handling of 100 bricksweek

Up to 65 CSd scannedweek

CS delivered to the Scanning Stations

CS scanned

CS with a positive results

OPERA Results

Courtesy of D Autiero

BENE08 2 Dec 2008E Gschwendtner ABATB

28

Backward going charged particle(interesting as will allow to benchmark the MC simulation of back-scattering)

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

29

Outlook 2009bull 2009 Schedule CNGS physics start on 7 May 2009 total 175 days

Outlook

Protons on target in 2009 ~27middot1019 to ~5middot1019 potyr

Depends mainly on bull CNGS duty cyclebull beam intensityextraction

BENE08 2 Dec 2008E Gschwendtner ABATB

30

Multi-Turn-Extractionbull Novel extraction scheme from PS to SPS

ndash Beam is separated in the transverse phase space usingbull Nonlinear magnetic elements (sextupoles and octupoles) to create stable islandsbull Slow (adiabatic) tune-variation to cross an appropriate resonance

ndash Beneficial effectsbull No mechanical device to slice the beam losses are reducedbull The phase space matching is improved bull The beamlets have the same emittance and optical parameters

Five beamlets separated by 1 PS turn

Result of the first extraction test in the PS extraction line (TT2) with one bunch

Courtesy MTE project - M Giovannozzi et al

Evolution of the horizontal beam distribution during the splitting

MTE extracted beam has been provided to the SPS for the last night of CNGS run2009 Start with classical extraction parallel prepare MTE provide first SFTPRO then CNGS

Outlook

BENE08 2 Dec 2008E Gschwendtner ABATB

31

Summarybull Start-up issues of CNGS have been

overcomendash a lot of work

bull CNGS 2008 run was very successfulndash 178 1019 pot ndash 1700 candidate events in OPERAndash exploring limits of CNGS facility

bull 2009 ndash full year of high intensity operationndash First tau neutrino events

BENE08 2 Dec 2008E Gschwendtner ABATB

32

Thank You to all the colleagues for their effort to make CNGS a

success this year

AB Department TS Department SCRPCNGS Secondary Beam Working Group MTE Project Team

BENE08 2 Dec 2008E Gschwendtner ABATB

33

CNGS Radiation SimulationsHigh-E (gt20 MeV) hadron fluence for a nominal year (45 E19 pot)

A

Fe

rra

ri

L

Sa

rch

iap

on

e e

t a

l F

LU

KA

sim

ula

tio

ns

20

08

CNGS Facility ndash Startup Issues

Dose in Gray for a nominal year (45 E19 pot)

2007 no shielding

2008++lt 10 Gry

F 106

~10 Gry2007 no shielding

F 104

lt 106 hcm2yr2008++

~1010 hcm2yr

BENE08 2 Dec 2008E Gschwendtner ABATB

34

3 prong vertex in the bottom layer of the emulsion

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

35

kink=0204 rad

Event GalleryOPERA Results

Other particles with very short life-time Charmed mesons produced by interactions Can contribute to background in case the muon from charm decay is missed

21 expected charm events during 2007-2008Seen 2 charm-like topologies

D+

neutrals

- (undetected)

h+

  • CNGS Operation Results 2008
  • Slide 2
  • CERN Neutrinos to Gran Sasso
  • CNGS Timeline
  • CNGS Conventional Neutrino Beams
  • CNGS Proton Beam Parameters
  • CNGS Target
  • CNGS Horn and Reflector
  • Muon Monitors
  • Radiation Issues - 2007 CNGS Run
  • Modifications in Shutdown 200708 due to Radiation Issues
  • Photo Gallery- Motorized Shielding Plugs
  • Junction to Target Chamber
  • Slide 14
  • CNGS Polarity Puzzle
  • Slide 16
  • CNGS 2008 Performance and Results
  • CNGS Run 2008
  • Supercycle
  • CNGS Run 2008 18 June- 03 Nov 2008
  • SPS Efficiency for CNGS
  • Beam Intensity
  • Beam Stability
  • Muon Monitors Measurements vs Simulations
  • OPERA
  • The OPERA Detector
  • OPERA Results 2008
  • Slide 28
  • Outlook 2009
  • Multi-Turn-Extraction
  • Summary
  • Slide 32
  • CNGS Radiation Simulations
  • Event Gallery
  • Slide 35
Page 12: CNGS Operation Results 2008 Edda Gschwendtner AB/ATB on behalf of the CNGS team.

BENE08 2 Dec 2008E Gschwendtner ABATB

12

Photo Gallery- Motorized Shielding PlugsPPP-TSG415 tons moves on 6 slope

PPP-TSG4120 tons moves on flat surface

Plugs connected to access system and remotely controlledOpen before an access to CNGS is granted

CNGS Facility ndash Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

13

Junction to Target Chamber

2007

2008

View from ventilation chamber into target chamber

2008

CNGS Facility ndash Startup Issues ndash Photo Gallery

2008

BENE08 2 Dec 2008E Gschwendtner ABATB

14

ABMB 14 Oct 2008E Gschwendtner ABATB

14

target

muon detectors pit 1

muon detectors pit 2

BENE08 2 Dec 2008E Gschwendtner ABATB

15

CNGS Polarity Puzzle

bull Observation of asymmetry in horizontal direction between

ndash Neutrino (focusing of mesons with positive charge)

ndash Anti-neutrino (focusing of mesons with negative charge)

270cm

1125cm

Muon DetectorMuon detectors very sensitive to any beam change ndashgive online feedback for neutrino beam quality

CNGS Facility ndash Beam Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

16

CNGS Polarity PuzzleExplanation Earth magnetic field in 1km long decay tube

ndash calculate B components in CNGS reference systemndash Partially shielding of magnetic field due to decay tube steel Results in shifts of the observed magnitude Measurements and simulations agree very well (absolute comparison within

5 in first muon pit)

Lines simulated fluxPoints measurementsNormalized to max=1

NeutrinoFocusing on

positive charge

Anti-neutrino Focusing on

negative charge

FL

UK

A s

imu

lati

on

s P

Sal

a et

al 2

008

CNGS Facility ndash Beam Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

17

CNGS 2008 Performance and Results

BENE08 2 Dec 2008E Gschwendtner ABATB

18

CNGS Run 2008

Excellent performance of the CNGS FacilityCNGS modifications finished successfully

bull no radiation problemseffects in the electronics during the entire run 2008

bull excellent hornreflector performance during 2008 run

Beam line equipment bull Working well and stable (target horns detectorshellip)

18 June ndash 3 November 2008 178middot1019 protons on target

OPERA experimentndash 10100 on-time eventsndash 1700 candidate interactions in bricks

CNGS Facility ndash Performance 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

19

Supercycle48s supercycleNorth Area 3 CNGS 1LHC1MD 375 CNGS duty cycle

504s supercycle7 CNGS 1 LHC 83 CNGS duty cycle

SFTPRO 3xCNGS LHC MD 4x CNGS2xCNGS MTECNGS

LHC

CNGS Facility ndash Performance 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

20

CNGS Run 2008 18 June- 03 Nov 2008

0

2E+18

4E+18

6E+18

8E+18

1E+19

12E+19

14E+19

16E+19

18E+19

18-J

un

28-J

un

8-J

ul

18-J

ul

28-J

ul

7-A

ug

17-A

ug

27-A

ug

6-S

ep

16-S

ep

26-S

ep

6-O

ct

16-O

ct

26-O

ct

5-N

ov

inte

gra

ted

po

t

Total 1781019 pot

18kV cable repair

MD

PS magnet exchange septum bakeout

MD

SPS timing faultvacuum leak amp magnet exchange

CNGS maintenance

SPS extraction line Magnet ground fault MD

CNGS maintenance

CNGS Facility ndash Performance 2008

Nominal 45 1019 potyr for 5 years

Beam to CNGSLHC FT MD

Beam to CNGSLHC FT

Beam to CNGS MD

BENE08 2 Dec 2008E Gschwendtner ABATB

21

SPS Efficiency for CNGSCNGS Facility ndash Performance 2008

Integrated efficiency 6094

BENE08 2 Dec 2008E Gschwendtner ABATB

22

Beam Intensity

SPS beam intensityextraction

Error rms spread

RF problems

Number of extractions during 2008 run

Almost 1 million - 995000

Intensity limitsbull Losses in the PSbull SPS RF

Typical transmission of the CNGS beam through the SPS cycle ~ 92Injection losses ~ 6

CNGS Facility ndash Performance 2008

Proton beam data courtesy of J Wenninger

BENE08 2 Dec 2008E Gschwendtner ABATB

23

Beam StabilityTarget Beam Positionbull Excellent position stability ~50microns over entire runbull No active position feedback is necessary

ndash 1-2 small steeringsweek only

CNGS Facility ndash Performance 2008

Beam Stability seen in Muon Monitorsbull Position stability of muon beam in pit 2 is ~3cm rmsbull Beam position correlated to beam position on target

ndash Parallel displacement of primary beam on T40

-8

-7

-6

-5

-4

-3

-2

-1

0

1

2

3

10

29

00

0

10

29

02

8

10

29

05

7

10

29

12

6

10

29

15

5

10

29

22

4

10

29

25

2

10

29

32

1

10

29

35

0

10

29

41

9

10

29

44

8

10

29

51

6

10

29

54

5

10

29

61

4

10

29

64

3

cm

5cm shift of muon profile centroid

~80m parallel beam shift

Centroid of horizontal profile pit2

BENE08 2 Dec 2008E Gschwendtner ABATB

24

Muon Monitors Measurements vs Simulations

Excellent agreement

CNGS Facility ndash Performance 2008

pit 1 Horizontal

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 1

pit 1 Vertical

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Vertical Profile Pit 1 pit 2 Vertical

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Vertical Profile Pit 2

pit 2 Horizontal

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 2

P

Sal

a et

al

FLU

KA

sim

ulat

ion

s 20

08

MeasurementsSimulations

BENE08 2 Dec 2008E Gschwendtner ABATB

25

OPERA

BENE08 2 Dec 2008E Gschwendtner ABATB

26

bull Total target massndash 12 kton146621 emulsion-lead bricks

bull 2 super modules ndash Spectrometer 22 RPC planes in

magnetic field (15T) 6 Drift tube planes

ndash Target 27 lead emulsion brick walls alternated with scintillator planes

The OPERA DetectorOPERA Detector

BENE08 2 Dec 2008E Gschwendtner ABATB

27

OPERA Results 2008bull 10100 on-time eventsbull 1700 candidate interactions in bricks

Handling of 100 bricksweek

Up to 65 CSd scannedweek

CS delivered to the Scanning Stations

CS scanned

CS with a positive results

OPERA Results

Courtesy of D Autiero

BENE08 2 Dec 2008E Gschwendtner ABATB

28

Backward going charged particle(interesting as will allow to benchmark the MC simulation of back-scattering)

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

29

Outlook 2009bull 2009 Schedule CNGS physics start on 7 May 2009 total 175 days

Outlook

Protons on target in 2009 ~27middot1019 to ~5middot1019 potyr

Depends mainly on bull CNGS duty cyclebull beam intensityextraction

BENE08 2 Dec 2008E Gschwendtner ABATB

30

Multi-Turn-Extractionbull Novel extraction scheme from PS to SPS

ndash Beam is separated in the transverse phase space usingbull Nonlinear magnetic elements (sextupoles and octupoles) to create stable islandsbull Slow (adiabatic) tune-variation to cross an appropriate resonance

ndash Beneficial effectsbull No mechanical device to slice the beam losses are reducedbull The phase space matching is improved bull The beamlets have the same emittance and optical parameters

Five beamlets separated by 1 PS turn

Result of the first extraction test in the PS extraction line (TT2) with one bunch

Courtesy MTE project - M Giovannozzi et al

Evolution of the horizontal beam distribution during the splitting

MTE extracted beam has been provided to the SPS for the last night of CNGS run2009 Start with classical extraction parallel prepare MTE provide first SFTPRO then CNGS

Outlook

BENE08 2 Dec 2008E Gschwendtner ABATB

31

Summarybull Start-up issues of CNGS have been

overcomendash a lot of work

bull CNGS 2008 run was very successfulndash 178 1019 pot ndash 1700 candidate events in OPERAndash exploring limits of CNGS facility

bull 2009 ndash full year of high intensity operationndash First tau neutrino events

BENE08 2 Dec 2008E Gschwendtner ABATB

32

Thank You to all the colleagues for their effort to make CNGS a

success this year

AB Department TS Department SCRPCNGS Secondary Beam Working Group MTE Project Team

BENE08 2 Dec 2008E Gschwendtner ABATB

33

CNGS Radiation SimulationsHigh-E (gt20 MeV) hadron fluence for a nominal year (45 E19 pot)

A

Fe

rra

ri

L

Sa

rch

iap

on

e e

t a

l F

LU

KA

sim

ula

tio

ns

20

08

CNGS Facility ndash Startup Issues

Dose in Gray for a nominal year (45 E19 pot)

2007 no shielding

2008++lt 10 Gry

F 106

~10 Gry2007 no shielding

F 104

lt 106 hcm2yr2008++

~1010 hcm2yr

BENE08 2 Dec 2008E Gschwendtner ABATB

34

3 prong vertex in the bottom layer of the emulsion

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

35

kink=0204 rad

Event GalleryOPERA Results

Other particles with very short life-time Charmed mesons produced by interactions Can contribute to background in case the muon from charm decay is missed

21 expected charm events during 2007-2008Seen 2 charm-like topologies

D+

neutrals

- (undetected)

h+

  • CNGS Operation Results 2008
  • Slide 2
  • CERN Neutrinos to Gran Sasso
  • CNGS Timeline
  • CNGS Conventional Neutrino Beams
  • CNGS Proton Beam Parameters
  • CNGS Target
  • CNGS Horn and Reflector
  • Muon Monitors
  • Radiation Issues - 2007 CNGS Run
  • Modifications in Shutdown 200708 due to Radiation Issues
  • Photo Gallery- Motorized Shielding Plugs
  • Junction to Target Chamber
  • Slide 14
  • CNGS Polarity Puzzle
  • Slide 16
  • CNGS 2008 Performance and Results
  • CNGS Run 2008
  • Supercycle
  • CNGS Run 2008 18 June- 03 Nov 2008
  • SPS Efficiency for CNGS
  • Beam Intensity
  • Beam Stability
  • Muon Monitors Measurements vs Simulations
  • OPERA
  • The OPERA Detector
  • OPERA Results 2008
  • Slide 28
  • Outlook 2009
  • Multi-Turn-Extraction
  • Summary
  • Slide 32
  • CNGS Radiation Simulations
  • Event Gallery
  • Slide 35
Page 13: CNGS Operation Results 2008 Edda Gschwendtner AB/ATB on behalf of the CNGS team.

BENE08 2 Dec 2008E Gschwendtner ABATB

13

Junction to Target Chamber

2007

2008

View from ventilation chamber into target chamber

2008

CNGS Facility ndash Startup Issues ndash Photo Gallery

2008

BENE08 2 Dec 2008E Gschwendtner ABATB

14

ABMB 14 Oct 2008E Gschwendtner ABATB

14

target

muon detectors pit 1

muon detectors pit 2

BENE08 2 Dec 2008E Gschwendtner ABATB

15

CNGS Polarity Puzzle

bull Observation of asymmetry in horizontal direction between

ndash Neutrino (focusing of mesons with positive charge)

ndash Anti-neutrino (focusing of mesons with negative charge)

270cm

1125cm

Muon DetectorMuon detectors very sensitive to any beam change ndashgive online feedback for neutrino beam quality

CNGS Facility ndash Beam Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

16

CNGS Polarity PuzzleExplanation Earth magnetic field in 1km long decay tube

ndash calculate B components in CNGS reference systemndash Partially shielding of magnetic field due to decay tube steel Results in shifts of the observed magnitude Measurements and simulations agree very well (absolute comparison within

5 in first muon pit)

Lines simulated fluxPoints measurementsNormalized to max=1

NeutrinoFocusing on

positive charge

Anti-neutrino Focusing on

negative charge

FL

UK

A s

imu

lati

on

s P

Sal

a et

al 2

008

CNGS Facility ndash Beam Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

17

CNGS 2008 Performance and Results

BENE08 2 Dec 2008E Gschwendtner ABATB

18

CNGS Run 2008

Excellent performance of the CNGS FacilityCNGS modifications finished successfully

bull no radiation problemseffects in the electronics during the entire run 2008

bull excellent hornreflector performance during 2008 run

Beam line equipment bull Working well and stable (target horns detectorshellip)

18 June ndash 3 November 2008 178middot1019 protons on target

OPERA experimentndash 10100 on-time eventsndash 1700 candidate interactions in bricks

CNGS Facility ndash Performance 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

19

Supercycle48s supercycleNorth Area 3 CNGS 1LHC1MD 375 CNGS duty cycle

504s supercycle7 CNGS 1 LHC 83 CNGS duty cycle

SFTPRO 3xCNGS LHC MD 4x CNGS2xCNGS MTECNGS

LHC

CNGS Facility ndash Performance 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

20

CNGS Run 2008 18 June- 03 Nov 2008

0

2E+18

4E+18

6E+18

8E+18

1E+19

12E+19

14E+19

16E+19

18E+19

18-J

un

28-J

un

8-J

ul

18-J

ul

28-J

ul

7-A

ug

17-A

ug

27-A

ug

6-S

ep

16-S

ep

26-S

ep

6-O

ct

16-O

ct

26-O

ct

5-N

ov

inte

gra

ted

po

t

Total 1781019 pot

18kV cable repair

MD

PS magnet exchange septum bakeout

MD

SPS timing faultvacuum leak amp magnet exchange

CNGS maintenance

SPS extraction line Magnet ground fault MD

CNGS maintenance

CNGS Facility ndash Performance 2008

Nominal 45 1019 potyr for 5 years

Beam to CNGSLHC FT MD

Beam to CNGSLHC FT

Beam to CNGS MD

BENE08 2 Dec 2008E Gschwendtner ABATB

21

SPS Efficiency for CNGSCNGS Facility ndash Performance 2008

Integrated efficiency 6094

BENE08 2 Dec 2008E Gschwendtner ABATB

22

Beam Intensity

SPS beam intensityextraction

Error rms spread

RF problems

Number of extractions during 2008 run

Almost 1 million - 995000

Intensity limitsbull Losses in the PSbull SPS RF

Typical transmission of the CNGS beam through the SPS cycle ~ 92Injection losses ~ 6

CNGS Facility ndash Performance 2008

Proton beam data courtesy of J Wenninger

BENE08 2 Dec 2008E Gschwendtner ABATB

23

Beam StabilityTarget Beam Positionbull Excellent position stability ~50microns over entire runbull No active position feedback is necessary

ndash 1-2 small steeringsweek only

CNGS Facility ndash Performance 2008

Beam Stability seen in Muon Monitorsbull Position stability of muon beam in pit 2 is ~3cm rmsbull Beam position correlated to beam position on target

ndash Parallel displacement of primary beam on T40

-8

-7

-6

-5

-4

-3

-2

-1

0

1

2

3

10

29

00

0

10

29

02

8

10

29

05

7

10

29

12

6

10

29

15

5

10

29

22

4

10

29

25

2

10

29

32

1

10

29

35

0

10

29

41

9

10

29

44

8

10

29

51

6

10

29

54

5

10

29

61

4

10

29

64

3

cm

5cm shift of muon profile centroid

~80m parallel beam shift

Centroid of horizontal profile pit2

BENE08 2 Dec 2008E Gschwendtner ABATB

24

Muon Monitors Measurements vs Simulations

Excellent agreement

CNGS Facility ndash Performance 2008

pit 1 Horizontal

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 1

pit 1 Vertical

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Vertical Profile Pit 1 pit 2 Vertical

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Vertical Profile Pit 2

pit 2 Horizontal

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 2

P

Sal

a et

al

FLU

KA

sim

ulat

ion

s 20

08

MeasurementsSimulations

BENE08 2 Dec 2008E Gschwendtner ABATB

25

OPERA

BENE08 2 Dec 2008E Gschwendtner ABATB

26

bull Total target massndash 12 kton146621 emulsion-lead bricks

bull 2 super modules ndash Spectrometer 22 RPC planes in

magnetic field (15T) 6 Drift tube planes

ndash Target 27 lead emulsion brick walls alternated with scintillator planes

The OPERA DetectorOPERA Detector

BENE08 2 Dec 2008E Gschwendtner ABATB

27

OPERA Results 2008bull 10100 on-time eventsbull 1700 candidate interactions in bricks

Handling of 100 bricksweek

Up to 65 CSd scannedweek

CS delivered to the Scanning Stations

CS scanned

CS with a positive results

OPERA Results

Courtesy of D Autiero

BENE08 2 Dec 2008E Gschwendtner ABATB

28

Backward going charged particle(interesting as will allow to benchmark the MC simulation of back-scattering)

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

29

Outlook 2009bull 2009 Schedule CNGS physics start on 7 May 2009 total 175 days

Outlook

Protons on target in 2009 ~27middot1019 to ~5middot1019 potyr

Depends mainly on bull CNGS duty cyclebull beam intensityextraction

BENE08 2 Dec 2008E Gschwendtner ABATB

30

Multi-Turn-Extractionbull Novel extraction scheme from PS to SPS

ndash Beam is separated in the transverse phase space usingbull Nonlinear magnetic elements (sextupoles and octupoles) to create stable islandsbull Slow (adiabatic) tune-variation to cross an appropriate resonance

ndash Beneficial effectsbull No mechanical device to slice the beam losses are reducedbull The phase space matching is improved bull The beamlets have the same emittance and optical parameters

Five beamlets separated by 1 PS turn

Result of the first extraction test in the PS extraction line (TT2) with one bunch

Courtesy MTE project - M Giovannozzi et al

Evolution of the horizontal beam distribution during the splitting

MTE extracted beam has been provided to the SPS for the last night of CNGS run2009 Start with classical extraction parallel prepare MTE provide first SFTPRO then CNGS

Outlook

BENE08 2 Dec 2008E Gschwendtner ABATB

31

Summarybull Start-up issues of CNGS have been

overcomendash a lot of work

bull CNGS 2008 run was very successfulndash 178 1019 pot ndash 1700 candidate events in OPERAndash exploring limits of CNGS facility

bull 2009 ndash full year of high intensity operationndash First tau neutrino events

BENE08 2 Dec 2008E Gschwendtner ABATB

32

Thank You to all the colleagues for their effort to make CNGS a

success this year

AB Department TS Department SCRPCNGS Secondary Beam Working Group MTE Project Team

BENE08 2 Dec 2008E Gschwendtner ABATB

33

CNGS Radiation SimulationsHigh-E (gt20 MeV) hadron fluence for a nominal year (45 E19 pot)

A

Fe

rra

ri

L

Sa

rch

iap

on

e e

t a

l F

LU

KA

sim

ula

tio

ns

20

08

CNGS Facility ndash Startup Issues

Dose in Gray for a nominal year (45 E19 pot)

2007 no shielding

2008++lt 10 Gry

F 106

~10 Gry2007 no shielding

F 104

lt 106 hcm2yr2008++

~1010 hcm2yr

BENE08 2 Dec 2008E Gschwendtner ABATB

34

3 prong vertex in the bottom layer of the emulsion

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

35

kink=0204 rad

Event GalleryOPERA Results

Other particles with very short life-time Charmed mesons produced by interactions Can contribute to background in case the muon from charm decay is missed

21 expected charm events during 2007-2008Seen 2 charm-like topologies

D+

neutrals

- (undetected)

h+

  • CNGS Operation Results 2008
  • Slide 2
  • CERN Neutrinos to Gran Sasso
  • CNGS Timeline
  • CNGS Conventional Neutrino Beams
  • CNGS Proton Beam Parameters
  • CNGS Target
  • CNGS Horn and Reflector
  • Muon Monitors
  • Radiation Issues - 2007 CNGS Run
  • Modifications in Shutdown 200708 due to Radiation Issues
  • Photo Gallery- Motorized Shielding Plugs
  • Junction to Target Chamber
  • Slide 14
  • CNGS Polarity Puzzle
  • Slide 16
  • CNGS 2008 Performance and Results
  • CNGS Run 2008
  • Supercycle
  • CNGS Run 2008 18 June- 03 Nov 2008
  • SPS Efficiency for CNGS
  • Beam Intensity
  • Beam Stability
  • Muon Monitors Measurements vs Simulations
  • OPERA
  • The OPERA Detector
  • OPERA Results 2008
  • Slide 28
  • Outlook 2009
  • Multi-Turn-Extraction
  • Summary
  • Slide 32
  • CNGS Radiation Simulations
  • Event Gallery
  • Slide 35
Page 14: CNGS Operation Results 2008 Edda Gschwendtner AB/ATB on behalf of the CNGS team.

BENE08 2 Dec 2008E Gschwendtner ABATB

14

ABMB 14 Oct 2008E Gschwendtner ABATB

14

target

muon detectors pit 1

muon detectors pit 2

BENE08 2 Dec 2008E Gschwendtner ABATB

15

CNGS Polarity Puzzle

bull Observation of asymmetry in horizontal direction between

ndash Neutrino (focusing of mesons with positive charge)

ndash Anti-neutrino (focusing of mesons with negative charge)

270cm

1125cm

Muon DetectorMuon detectors very sensitive to any beam change ndashgive online feedback for neutrino beam quality

CNGS Facility ndash Beam Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

16

CNGS Polarity PuzzleExplanation Earth magnetic field in 1km long decay tube

ndash calculate B components in CNGS reference systemndash Partially shielding of magnetic field due to decay tube steel Results in shifts of the observed magnitude Measurements and simulations agree very well (absolute comparison within

5 in first muon pit)

Lines simulated fluxPoints measurementsNormalized to max=1

NeutrinoFocusing on

positive charge

Anti-neutrino Focusing on

negative charge

FL

UK

A s

imu

lati

on

s P

Sal

a et

al 2

008

CNGS Facility ndash Beam Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

17

CNGS 2008 Performance and Results

BENE08 2 Dec 2008E Gschwendtner ABATB

18

CNGS Run 2008

Excellent performance of the CNGS FacilityCNGS modifications finished successfully

bull no radiation problemseffects in the electronics during the entire run 2008

bull excellent hornreflector performance during 2008 run

Beam line equipment bull Working well and stable (target horns detectorshellip)

18 June ndash 3 November 2008 178middot1019 protons on target

OPERA experimentndash 10100 on-time eventsndash 1700 candidate interactions in bricks

CNGS Facility ndash Performance 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

19

Supercycle48s supercycleNorth Area 3 CNGS 1LHC1MD 375 CNGS duty cycle

504s supercycle7 CNGS 1 LHC 83 CNGS duty cycle

SFTPRO 3xCNGS LHC MD 4x CNGS2xCNGS MTECNGS

LHC

CNGS Facility ndash Performance 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

20

CNGS Run 2008 18 June- 03 Nov 2008

0

2E+18

4E+18

6E+18

8E+18

1E+19

12E+19

14E+19

16E+19

18E+19

18-J

un

28-J

un

8-J

ul

18-J

ul

28-J

ul

7-A

ug

17-A

ug

27-A

ug

6-S

ep

16-S

ep

26-S

ep

6-O

ct

16-O

ct

26-O

ct

5-N

ov

inte

gra

ted

po

t

Total 1781019 pot

18kV cable repair

MD

PS magnet exchange septum bakeout

MD

SPS timing faultvacuum leak amp magnet exchange

CNGS maintenance

SPS extraction line Magnet ground fault MD

CNGS maintenance

CNGS Facility ndash Performance 2008

Nominal 45 1019 potyr for 5 years

Beam to CNGSLHC FT MD

Beam to CNGSLHC FT

Beam to CNGS MD

BENE08 2 Dec 2008E Gschwendtner ABATB

21

SPS Efficiency for CNGSCNGS Facility ndash Performance 2008

Integrated efficiency 6094

BENE08 2 Dec 2008E Gschwendtner ABATB

22

Beam Intensity

SPS beam intensityextraction

Error rms spread

RF problems

Number of extractions during 2008 run

Almost 1 million - 995000

Intensity limitsbull Losses in the PSbull SPS RF

Typical transmission of the CNGS beam through the SPS cycle ~ 92Injection losses ~ 6

CNGS Facility ndash Performance 2008

Proton beam data courtesy of J Wenninger

BENE08 2 Dec 2008E Gschwendtner ABATB

23

Beam StabilityTarget Beam Positionbull Excellent position stability ~50microns over entire runbull No active position feedback is necessary

ndash 1-2 small steeringsweek only

CNGS Facility ndash Performance 2008

Beam Stability seen in Muon Monitorsbull Position stability of muon beam in pit 2 is ~3cm rmsbull Beam position correlated to beam position on target

ndash Parallel displacement of primary beam on T40

-8

-7

-6

-5

-4

-3

-2

-1

0

1

2

3

10

29

00

0

10

29

02

8

10

29

05

7

10

29

12

6

10

29

15

5

10

29

22

4

10

29

25

2

10

29

32

1

10

29

35

0

10

29

41

9

10

29

44

8

10

29

51

6

10

29

54

5

10

29

61

4

10

29

64

3

cm

5cm shift of muon profile centroid

~80m parallel beam shift

Centroid of horizontal profile pit2

BENE08 2 Dec 2008E Gschwendtner ABATB

24

Muon Monitors Measurements vs Simulations

Excellent agreement

CNGS Facility ndash Performance 2008

pit 1 Horizontal

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 1

pit 1 Vertical

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Vertical Profile Pit 1 pit 2 Vertical

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Vertical Profile Pit 2

pit 2 Horizontal

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 2

P

Sal

a et

al

FLU

KA

sim

ulat

ion

s 20

08

MeasurementsSimulations

BENE08 2 Dec 2008E Gschwendtner ABATB

25

OPERA

BENE08 2 Dec 2008E Gschwendtner ABATB

26

bull Total target massndash 12 kton146621 emulsion-lead bricks

bull 2 super modules ndash Spectrometer 22 RPC planes in

magnetic field (15T) 6 Drift tube planes

ndash Target 27 lead emulsion brick walls alternated with scintillator planes

The OPERA DetectorOPERA Detector

BENE08 2 Dec 2008E Gschwendtner ABATB

27

OPERA Results 2008bull 10100 on-time eventsbull 1700 candidate interactions in bricks

Handling of 100 bricksweek

Up to 65 CSd scannedweek

CS delivered to the Scanning Stations

CS scanned

CS with a positive results

OPERA Results

Courtesy of D Autiero

BENE08 2 Dec 2008E Gschwendtner ABATB

28

Backward going charged particle(interesting as will allow to benchmark the MC simulation of back-scattering)

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

29

Outlook 2009bull 2009 Schedule CNGS physics start on 7 May 2009 total 175 days

Outlook

Protons on target in 2009 ~27middot1019 to ~5middot1019 potyr

Depends mainly on bull CNGS duty cyclebull beam intensityextraction

BENE08 2 Dec 2008E Gschwendtner ABATB

30

Multi-Turn-Extractionbull Novel extraction scheme from PS to SPS

ndash Beam is separated in the transverse phase space usingbull Nonlinear magnetic elements (sextupoles and octupoles) to create stable islandsbull Slow (adiabatic) tune-variation to cross an appropriate resonance

ndash Beneficial effectsbull No mechanical device to slice the beam losses are reducedbull The phase space matching is improved bull The beamlets have the same emittance and optical parameters

Five beamlets separated by 1 PS turn

Result of the first extraction test in the PS extraction line (TT2) with one bunch

Courtesy MTE project - M Giovannozzi et al

Evolution of the horizontal beam distribution during the splitting

MTE extracted beam has been provided to the SPS for the last night of CNGS run2009 Start with classical extraction parallel prepare MTE provide first SFTPRO then CNGS

Outlook

BENE08 2 Dec 2008E Gschwendtner ABATB

31

Summarybull Start-up issues of CNGS have been

overcomendash a lot of work

bull CNGS 2008 run was very successfulndash 178 1019 pot ndash 1700 candidate events in OPERAndash exploring limits of CNGS facility

bull 2009 ndash full year of high intensity operationndash First tau neutrino events

BENE08 2 Dec 2008E Gschwendtner ABATB

32

Thank You to all the colleagues for their effort to make CNGS a

success this year

AB Department TS Department SCRPCNGS Secondary Beam Working Group MTE Project Team

BENE08 2 Dec 2008E Gschwendtner ABATB

33

CNGS Radiation SimulationsHigh-E (gt20 MeV) hadron fluence for a nominal year (45 E19 pot)

A

Fe

rra

ri

L

Sa

rch

iap

on

e e

t a

l F

LU

KA

sim

ula

tio

ns

20

08

CNGS Facility ndash Startup Issues

Dose in Gray for a nominal year (45 E19 pot)

2007 no shielding

2008++lt 10 Gry

F 106

~10 Gry2007 no shielding

F 104

lt 106 hcm2yr2008++

~1010 hcm2yr

BENE08 2 Dec 2008E Gschwendtner ABATB

34

3 prong vertex in the bottom layer of the emulsion

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

35

kink=0204 rad

Event GalleryOPERA Results

Other particles with very short life-time Charmed mesons produced by interactions Can contribute to background in case the muon from charm decay is missed

21 expected charm events during 2007-2008Seen 2 charm-like topologies

D+

neutrals

- (undetected)

h+

  • CNGS Operation Results 2008
  • Slide 2
  • CERN Neutrinos to Gran Sasso
  • CNGS Timeline
  • CNGS Conventional Neutrino Beams
  • CNGS Proton Beam Parameters
  • CNGS Target
  • CNGS Horn and Reflector
  • Muon Monitors
  • Radiation Issues - 2007 CNGS Run
  • Modifications in Shutdown 200708 due to Radiation Issues
  • Photo Gallery- Motorized Shielding Plugs
  • Junction to Target Chamber
  • Slide 14
  • CNGS Polarity Puzzle
  • Slide 16
  • CNGS 2008 Performance and Results
  • CNGS Run 2008
  • Supercycle
  • CNGS Run 2008 18 June- 03 Nov 2008
  • SPS Efficiency for CNGS
  • Beam Intensity
  • Beam Stability
  • Muon Monitors Measurements vs Simulations
  • OPERA
  • The OPERA Detector
  • OPERA Results 2008
  • Slide 28
  • Outlook 2009
  • Multi-Turn-Extraction
  • Summary
  • Slide 32
  • CNGS Radiation Simulations
  • Event Gallery
  • Slide 35
Page 15: CNGS Operation Results 2008 Edda Gschwendtner AB/ATB on behalf of the CNGS team.

BENE08 2 Dec 2008E Gschwendtner ABATB

15

CNGS Polarity Puzzle

bull Observation of asymmetry in horizontal direction between

ndash Neutrino (focusing of mesons with positive charge)

ndash Anti-neutrino (focusing of mesons with negative charge)

270cm

1125cm

Muon DetectorMuon detectors very sensitive to any beam change ndashgive online feedback for neutrino beam quality

CNGS Facility ndash Beam Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

16

CNGS Polarity PuzzleExplanation Earth magnetic field in 1km long decay tube

ndash calculate B components in CNGS reference systemndash Partially shielding of magnetic field due to decay tube steel Results in shifts of the observed magnitude Measurements and simulations agree very well (absolute comparison within

5 in first muon pit)

Lines simulated fluxPoints measurementsNormalized to max=1

NeutrinoFocusing on

positive charge

Anti-neutrino Focusing on

negative charge

FL

UK

A s

imu

lati

on

s P

Sal

a et

al 2

008

CNGS Facility ndash Beam Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

17

CNGS 2008 Performance and Results

BENE08 2 Dec 2008E Gschwendtner ABATB

18

CNGS Run 2008

Excellent performance of the CNGS FacilityCNGS modifications finished successfully

bull no radiation problemseffects in the electronics during the entire run 2008

bull excellent hornreflector performance during 2008 run

Beam line equipment bull Working well and stable (target horns detectorshellip)

18 June ndash 3 November 2008 178middot1019 protons on target

OPERA experimentndash 10100 on-time eventsndash 1700 candidate interactions in bricks

CNGS Facility ndash Performance 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

19

Supercycle48s supercycleNorth Area 3 CNGS 1LHC1MD 375 CNGS duty cycle

504s supercycle7 CNGS 1 LHC 83 CNGS duty cycle

SFTPRO 3xCNGS LHC MD 4x CNGS2xCNGS MTECNGS

LHC

CNGS Facility ndash Performance 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

20

CNGS Run 2008 18 June- 03 Nov 2008

0

2E+18

4E+18

6E+18

8E+18

1E+19

12E+19

14E+19

16E+19

18E+19

18-J

un

28-J

un

8-J

ul

18-J

ul

28-J

ul

7-A

ug

17-A

ug

27-A

ug

6-S

ep

16-S

ep

26-S

ep

6-O

ct

16-O

ct

26-O

ct

5-N

ov

inte

gra

ted

po

t

Total 1781019 pot

18kV cable repair

MD

PS magnet exchange septum bakeout

MD

SPS timing faultvacuum leak amp magnet exchange

CNGS maintenance

SPS extraction line Magnet ground fault MD

CNGS maintenance

CNGS Facility ndash Performance 2008

Nominal 45 1019 potyr for 5 years

Beam to CNGSLHC FT MD

Beam to CNGSLHC FT

Beam to CNGS MD

BENE08 2 Dec 2008E Gschwendtner ABATB

21

SPS Efficiency for CNGSCNGS Facility ndash Performance 2008

Integrated efficiency 6094

BENE08 2 Dec 2008E Gschwendtner ABATB

22

Beam Intensity

SPS beam intensityextraction

Error rms spread

RF problems

Number of extractions during 2008 run

Almost 1 million - 995000

Intensity limitsbull Losses in the PSbull SPS RF

Typical transmission of the CNGS beam through the SPS cycle ~ 92Injection losses ~ 6

CNGS Facility ndash Performance 2008

Proton beam data courtesy of J Wenninger

BENE08 2 Dec 2008E Gschwendtner ABATB

23

Beam StabilityTarget Beam Positionbull Excellent position stability ~50microns over entire runbull No active position feedback is necessary

ndash 1-2 small steeringsweek only

CNGS Facility ndash Performance 2008

Beam Stability seen in Muon Monitorsbull Position stability of muon beam in pit 2 is ~3cm rmsbull Beam position correlated to beam position on target

ndash Parallel displacement of primary beam on T40

-8

-7

-6

-5

-4

-3

-2

-1

0

1

2

3

10

29

00

0

10

29

02

8

10

29

05

7

10

29

12

6

10

29

15

5

10

29

22

4

10

29

25

2

10

29

32

1

10

29

35

0

10

29

41

9

10

29

44

8

10

29

51

6

10

29

54

5

10

29

61

4

10

29

64

3

cm

5cm shift of muon profile centroid

~80m parallel beam shift

Centroid of horizontal profile pit2

BENE08 2 Dec 2008E Gschwendtner ABATB

24

Muon Monitors Measurements vs Simulations

Excellent agreement

CNGS Facility ndash Performance 2008

pit 1 Horizontal

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 1

pit 1 Vertical

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Vertical Profile Pit 1 pit 2 Vertical

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Vertical Profile Pit 2

pit 2 Horizontal

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 2

P

Sal

a et

al

FLU

KA

sim

ulat

ion

s 20

08

MeasurementsSimulations

BENE08 2 Dec 2008E Gschwendtner ABATB

25

OPERA

BENE08 2 Dec 2008E Gschwendtner ABATB

26

bull Total target massndash 12 kton146621 emulsion-lead bricks

bull 2 super modules ndash Spectrometer 22 RPC planes in

magnetic field (15T) 6 Drift tube planes

ndash Target 27 lead emulsion brick walls alternated with scintillator planes

The OPERA DetectorOPERA Detector

BENE08 2 Dec 2008E Gschwendtner ABATB

27

OPERA Results 2008bull 10100 on-time eventsbull 1700 candidate interactions in bricks

Handling of 100 bricksweek

Up to 65 CSd scannedweek

CS delivered to the Scanning Stations

CS scanned

CS with a positive results

OPERA Results

Courtesy of D Autiero

BENE08 2 Dec 2008E Gschwendtner ABATB

28

Backward going charged particle(interesting as will allow to benchmark the MC simulation of back-scattering)

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

29

Outlook 2009bull 2009 Schedule CNGS physics start on 7 May 2009 total 175 days

Outlook

Protons on target in 2009 ~27middot1019 to ~5middot1019 potyr

Depends mainly on bull CNGS duty cyclebull beam intensityextraction

BENE08 2 Dec 2008E Gschwendtner ABATB

30

Multi-Turn-Extractionbull Novel extraction scheme from PS to SPS

ndash Beam is separated in the transverse phase space usingbull Nonlinear magnetic elements (sextupoles and octupoles) to create stable islandsbull Slow (adiabatic) tune-variation to cross an appropriate resonance

ndash Beneficial effectsbull No mechanical device to slice the beam losses are reducedbull The phase space matching is improved bull The beamlets have the same emittance and optical parameters

Five beamlets separated by 1 PS turn

Result of the first extraction test in the PS extraction line (TT2) with one bunch

Courtesy MTE project - M Giovannozzi et al

Evolution of the horizontal beam distribution during the splitting

MTE extracted beam has been provided to the SPS for the last night of CNGS run2009 Start with classical extraction parallel prepare MTE provide first SFTPRO then CNGS

Outlook

BENE08 2 Dec 2008E Gschwendtner ABATB

31

Summarybull Start-up issues of CNGS have been

overcomendash a lot of work

bull CNGS 2008 run was very successfulndash 178 1019 pot ndash 1700 candidate events in OPERAndash exploring limits of CNGS facility

bull 2009 ndash full year of high intensity operationndash First tau neutrino events

BENE08 2 Dec 2008E Gschwendtner ABATB

32

Thank You to all the colleagues for their effort to make CNGS a

success this year

AB Department TS Department SCRPCNGS Secondary Beam Working Group MTE Project Team

BENE08 2 Dec 2008E Gschwendtner ABATB

33

CNGS Radiation SimulationsHigh-E (gt20 MeV) hadron fluence for a nominal year (45 E19 pot)

A

Fe

rra

ri

L

Sa

rch

iap

on

e e

t a

l F

LU

KA

sim

ula

tio

ns

20

08

CNGS Facility ndash Startup Issues

Dose in Gray for a nominal year (45 E19 pot)

2007 no shielding

2008++lt 10 Gry

F 106

~10 Gry2007 no shielding

F 104

lt 106 hcm2yr2008++

~1010 hcm2yr

BENE08 2 Dec 2008E Gschwendtner ABATB

34

3 prong vertex in the bottom layer of the emulsion

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

35

kink=0204 rad

Event GalleryOPERA Results

Other particles with very short life-time Charmed mesons produced by interactions Can contribute to background in case the muon from charm decay is missed

21 expected charm events during 2007-2008Seen 2 charm-like topologies

D+

neutrals

- (undetected)

h+

  • CNGS Operation Results 2008
  • Slide 2
  • CERN Neutrinos to Gran Sasso
  • CNGS Timeline
  • CNGS Conventional Neutrino Beams
  • CNGS Proton Beam Parameters
  • CNGS Target
  • CNGS Horn and Reflector
  • Muon Monitors
  • Radiation Issues - 2007 CNGS Run
  • Modifications in Shutdown 200708 due to Radiation Issues
  • Photo Gallery- Motorized Shielding Plugs
  • Junction to Target Chamber
  • Slide 14
  • CNGS Polarity Puzzle
  • Slide 16
  • CNGS 2008 Performance and Results
  • CNGS Run 2008
  • Supercycle
  • CNGS Run 2008 18 June- 03 Nov 2008
  • SPS Efficiency for CNGS
  • Beam Intensity
  • Beam Stability
  • Muon Monitors Measurements vs Simulations
  • OPERA
  • The OPERA Detector
  • OPERA Results 2008
  • Slide 28
  • Outlook 2009
  • Multi-Turn-Extraction
  • Summary
  • Slide 32
  • CNGS Radiation Simulations
  • Event Gallery
  • Slide 35
Page 16: CNGS Operation Results 2008 Edda Gschwendtner AB/ATB on behalf of the CNGS team.

BENE08 2 Dec 2008E Gschwendtner ABATB

16

CNGS Polarity PuzzleExplanation Earth magnetic field in 1km long decay tube

ndash calculate B components in CNGS reference systemndash Partially shielding of magnetic field due to decay tube steel Results in shifts of the observed magnitude Measurements and simulations agree very well (absolute comparison within

5 in first muon pit)

Lines simulated fluxPoints measurementsNormalized to max=1

NeutrinoFocusing on

positive charge

Anti-neutrino Focusing on

negative charge

FL

UK

A s

imu

lati

on

s P

Sal

a et

al 2

008

CNGS Facility ndash Beam Startup Issues

BENE08 2 Dec 2008E Gschwendtner ABATB

17

CNGS 2008 Performance and Results

BENE08 2 Dec 2008E Gschwendtner ABATB

18

CNGS Run 2008

Excellent performance of the CNGS FacilityCNGS modifications finished successfully

bull no radiation problemseffects in the electronics during the entire run 2008

bull excellent hornreflector performance during 2008 run

Beam line equipment bull Working well and stable (target horns detectorshellip)

18 June ndash 3 November 2008 178middot1019 protons on target

OPERA experimentndash 10100 on-time eventsndash 1700 candidate interactions in bricks

CNGS Facility ndash Performance 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

19

Supercycle48s supercycleNorth Area 3 CNGS 1LHC1MD 375 CNGS duty cycle

504s supercycle7 CNGS 1 LHC 83 CNGS duty cycle

SFTPRO 3xCNGS LHC MD 4x CNGS2xCNGS MTECNGS

LHC

CNGS Facility ndash Performance 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

20

CNGS Run 2008 18 June- 03 Nov 2008

0

2E+18

4E+18

6E+18

8E+18

1E+19

12E+19

14E+19

16E+19

18E+19

18-J

un

28-J

un

8-J

ul

18-J

ul

28-J

ul

7-A

ug

17-A

ug

27-A

ug

6-S

ep

16-S

ep

26-S

ep

6-O

ct

16-O

ct

26-O

ct

5-N

ov

inte

gra

ted

po

t

Total 1781019 pot

18kV cable repair

MD

PS magnet exchange septum bakeout

MD

SPS timing faultvacuum leak amp magnet exchange

CNGS maintenance

SPS extraction line Magnet ground fault MD

CNGS maintenance

CNGS Facility ndash Performance 2008

Nominal 45 1019 potyr for 5 years

Beam to CNGSLHC FT MD

Beam to CNGSLHC FT

Beam to CNGS MD

BENE08 2 Dec 2008E Gschwendtner ABATB

21

SPS Efficiency for CNGSCNGS Facility ndash Performance 2008

Integrated efficiency 6094

BENE08 2 Dec 2008E Gschwendtner ABATB

22

Beam Intensity

SPS beam intensityextraction

Error rms spread

RF problems

Number of extractions during 2008 run

Almost 1 million - 995000

Intensity limitsbull Losses in the PSbull SPS RF

Typical transmission of the CNGS beam through the SPS cycle ~ 92Injection losses ~ 6

CNGS Facility ndash Performance 2008

Proton beam data courtesy of J Wenninger

BENE08 2 Dec 2008E Gschwendtner ABATB

23

Beam StabilityTarget Beam Positionbull Excellent position stability ~50microns over entire runbull No active position feedback is necessary

ndash 1-2 small steeringsweek only

CNGS Facility ndash Performance 2008

Beam Stability seen in Muon Monitorsbull Position stability of muon beam in pit 2 is ~3cm rmsbull Beam position correlated to beam position on target

ndash Parallel displacement of primary beam on T40

-8

-7

-6

-5

-4

-3

-2

-1

0

1

2

3

10

29

00

0

10

29

02

8

10

29

05

7

10

29

12

6

10

29

15

5

10

29

22

4

10

29

25

2

10

29

32

1

10

29

35

0

10

29

41

9

10

29

44

8

10

29

51

6

10

29

54

5

10

29

61

4

10

29

64

3

cm

5cm shift of muon profile centroid

~80m parallel beam shift

Centroid of horizontal profile pit2

BENE08 2 Dec 2008E Gschwendtner ABATB

24

Muon Monitors Measurements vs Simulations

Excellent agreement

CNGS Facility ndash Performance 2008

pit 1 Horizontal

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 1

pit 1 Vertical

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Vertical Profile Pit 1 pit 2 Vertical

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Vertical Profile Pit 2

pit 2 Horizontal

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 2

P

Sal

a et

al

FLU

KA

sim

ulat

ion

s 20

08

MeasurementsSimulations

BENE08 2 Dec 2008E Gschwendtner ABATB

25

OPERA

BENE08 2 Dec 2008E Gschwendtner ABATB

26

bull Total target massndash 12 kton146621 emulsion-lead bricks

bull 2 super modules ndash Spectrometer 22 RPC planes in

magnetic field (15T) 6 Drift tube planes

ndash Target 27 lead emulsion brick walls alternated with scintillator planes

The OPERA DetectorOPERA Detector

BENE08 2 Dec 2008E Gschwendtner ABATB

27

OPERA Results 2008bull 10100 on-time eventsbull 1700 candidate interactions in bricks

Handling of 100 bricksweek

Up to 65 CSd scannedweek

CS delivered to the Scanning Stations

CS scanned

CS with a positive results

OPERA Results

Courtesy of D Autiero

BENE08 2 Dec 2008E Gschwendtner ABATB

28

Backward going charged particle(interesting as will allow to benchmark the MC simulation of back-scattering)

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

29

Outlook 2009bull 2009 Schedule CNGS physics start on 7 May 2009 total 175 days

Outlook

Protons on target in 2009 ~27middot1019 to ~5middot1019 potyr

Depends mainly on bull CNGS duty cyclebull beam intensityextraction

BENE08 2 Dec 2008E Gschwendtner ABATB

30

Multi-Turn-Extractionbull Novel extraction scheme from PS to SPS

ndash Beam is separated in the transverse phase space usingbull Nonlinear magnetic elements (sextupoles and octupoles) to create stable islandsbull Slow (adiabatic) tune-variation to cross an appropriate resonance

ndash Beneficial effectsbull No mechanical device to slice the beam losses are reducedbull The phase space matching is improved bull The beamlets have the same emittance and optical parameters

Five beamlets separated by 1 PS turn

Result of the first extraction test in the PS extraction line (TT2) with one bunch

Courtesy MTE project - M Giovannozzi et al

Evolution of the horizontal beam distribution during the splitting

MTE extracted beam has been provided to the SPS for the last night of CNGS run2009 Start with classical extraction parallel prepare MTE provide first SFTPRO then CNGS

Outlook

BENE08 2 Dec 2008E Gschwendtner ABATB

31

Summarybull Start-up issues of CNGS have been

overcomendash a lot of work

bull CNGS 2008 run was very successfulndash 178 1019 pot ndash 1700 candidate events in OPERAndash exploring limits of CNGS facility

bull 2009 ndash full year of high intensity operationndash First tau neutrino events

BENE08 2 Dec 2008E Gschwendtner ABATB

32

Thank You to all the colleagues for their effort to make CNGS a

success this year

AB Department TS Department SCRPCNGS Secondary Beam Working Group MTE Project Team

BENE08 2 Dec 2008E Gschwendtner ABATB

33

CNGS Radiation SimulationsHigh-E (gt20 MeV) hadron fluence for a nominal year (45 E19 pot)

A

Fe

rra

ri

L

Sa

rch

iap

on

e e

t a

l F

LU

KA

sim

ula

tio

ns

20

08

CNGS Facility ndash Startup Issues

Dose in Gray for a nominal year (45 E19 pot)

2007 no shielding

2008++lt 10 Gry

F 106

~10 Gry2007 no shielding

F 104

lt 106 hcm2yr2008++

~1010 hcm2yr

BENE08 2 Dec 2008E Gschwendtner ABATB

34

3 prong vertex in the bottom layer of the emulsion

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

35

kink=0204 rad

Event GalleryOPERA Results

Other particles with very short life-time Charmed mesons produced by interactions Can contribute to background in case the muon from charm decay is missed

21 expected charm events during 2007-2008Seen 2 charm-like topologies

D+

neutrals

- (undetected)

h+

  • CNGS Operation Results 2008
  • Slide 2
  • CERN Neutrinos to Gran Sasso
  • CNGS Timeline
  • CNGS Conventional Neutrino Beams
  • CNGS Proton Beam Parameters
  • CNGS Target
  • CNGS Horn and Reflector
  • Muon Monitors
  • Radiation Issues - 2007 CNGS Run
  • Modifications in Shutdown 200708 due to Radiation Issues
  • Photo Gallery- Motorized Shielding Plugs
  • Junction to Target Chamber
  • Slide 14
  • CNGS Polarity Puzzle
  • Slide 16
  • CNGS 2008 Performance and Results
  • CNGS Run 2008
  • Supercycle
  • CNGS Run 2008 18 June- 03 Nov 2008
  • SPS Efficiency for CNGS
  • Beam Intensity
  • Beam Stability
  • Muon Monitors Measurements vs Simulations
  • OPERA
  • The OPERA Detector
  • OPERA Results 2008
  • Slide 28
  • Outlook 2009
  • Multi-Turn-Extraction
  • Summary
  • Slide 32
  • CNGS Radiation Simulations
  • Event Gallery
  • Slide 35
Page 17: CNGS Operation Results 2008 Edda Gschwendtner AB/ATB on behalf of the CNGS team.

BENE08 2 Dec 2008E Gschwendtner ABATB

17

CNGS 2008 Performance and Results

BENE08 2 Dec 2008E Gschwendtner ABATB

18

CNGS Run 2008

Excellent performance of the CNGS FacilityCNGS modifications finished successfully

bull no radiation problemseffects in the electronics during the entire run 2008

bull excellent hornreflector performance during 2008 run

Beam line equipment bull Working well and stable (target horns detectorshellip)

18 June ndash 3 November 2008 178middot1019 protons on target

OPERA experimentndash 10100 on-time eventsndash 1700 candidate interactions in bricks

CNGS Facility ndash Performance 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

19

Supercycle48s supercycleNorth Area 3 CNGS 1LHC1MD 375 CNGS duty cycle

504s supercycle7 CNGS 1 LHC 83 CNGS duty cycle

SFTPRO 3xCNGS LHC MD 4x CNGS2xCNGS MTECNGS

LHC

CNGS Facility ndash Performance 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

20

CNGS Run 2008 18 June- 03 Nov 2008

0

2E+18

4E+18

6E+18

8E+18

1E+19

12E+19

14E+19

16E+19

18E+19

18-J

un

28-J

un

8-J

ul

18-J

ul

28-J

ul

7-A

ug

17-A

ug

27-A

ug

6-S

ep

16-S

ep

26-S

ep

6-O

ct

16-O

ct

26-O

ct

5-N

ov

inte

gra

ted

po

t

Total 1781019 pot

18kV cable repair

MD

PS magnet exchange septum bakeout

MD

SPS timing faultvacuum leak amp magnet exchange

CNGS maintenance

SPS extraction line Magnet ground fault MD

CNGS maintenance

CNGS Facility ndash Performance 2008

Nominal 45 1019 potyr for 5 years

Beam to CNGSLHC FT MD

Beam to CNGSLHC FT

Beam to CNGS MD

BENE08 2 Dec 2008E Gschwendtner ABATB

21

SPS Efficiency for CNGSCNGS Facility ndash Performance 2008

Integrated efficiency 6094

BENE08 2 Dec 2008E Gschwendtner ABATB

22

Beam Intensity

SPS beam intensityextraction

Error rms spread

RF problems

Number of extractions during 2008 run

Almost 1 million - 995000

Intensity limitsbull Losses in the PSbull SPS RF

Typical transmission of the CNGS beam through the SPS cycle ~ 92Injection losses ~ 6

CNGS Facility ndash Performance 2008

Proton beam data courtesy of J Wenninger

BENE08 2 Dec 2008E Gschwendtner ABATB

23

Beam StabilityTarget Beam Positionbull Excellent position stability ~50microns over entire runbull No active position feedback is necessary

ndash 1-2 small steeringsweek only

CNGS Facility ndash Performance 2008

Beam Stability seen in Muon Monitorsbull Position stability of muon beam in pit 2 is ~3cm rmsbull Beam position correlated to beam position on target

ndash Parallel displacement of primary beam on T40

-8

-7

-6

-5

-4

-3

-2

-1

0

1

2

3

10

29

00

0

10

29

02

8

10

29

05

7

10

29

12

6

10

29

15

5

10

29

22

4

10

29

25

2

10

29

32

1

10

29

35

0

10

29

41

9

10

29

44

8

10

29

51

6

10

29

54

5

10

29

61

4

10

29

64

3

cm

5cm shift of muon profile centroid

~80m parallel beam shift

Centroid of horizontal profile pit2

BENE08 2 Dec 2008E Gschwendtner ABATB

24

Muon Monitors Measurements vs Simulations

Excellent agreement

CNGS Facility ndash Performance 2008

pit 1 Horizontal

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 1

pit 1 Vertical

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Vertical Profile Pit 1 pit 2 Vertical

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Vertical Profile Pit 2

pit 2 Horizontal

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 2

P

Sal

a et

al

FLU

KA

sim

ulat

ion

s 20

08

MeasurementsSimulations

BENE08 2 Dec 2008E Gschwendtner ABATB

25

OPERA

BENE08 2 Dec 2008E Gschwendtner ABATB

26

bull Total target massndash 12 kton146621 emulsion-lead bricks

bull 2 super modules ndash Spectrometer 22 RPC planes in

magnetic field (15T) 6 Drift tube planes

ndash Target 27 lead emulsion brick walls alternated with scintillator planes

The OPERA DetectorOPERA Detector

BENE08 2 Dec 2008E Gschwendtner ABATB

27

OPERA Results 2008bull 10100 on-time eventsbull 1700 candidate interactions in bricks

Handling of 100 bricksweek

Up to 65 CSd scannedweek

CS delivered to the Scanning Stations

CS scanned

CS with a positive results

OPERA Results

Courtesy of D Autiero

BENE08 2 Dec 2008E Gschwendtner ABATB

28

Backward going charged particle(interesting as will allow to benchmark the MC simulation of back-scattering)

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

29

Outlook 2009bull 2009 Schedule CNGS physics start on 7 May 2009 total 175 days

Outlook

Protons on target in 2009 ~27middot1019 to ~5middot1019 potyr

Depends mainly on bull CNGS duty cyclebull beam intensityextraction

BENE08 2 Dec 2008E Gschwendtner ABATB

30

Multi-Turn-Extractionbull Novel extraction scheme from PS to SPS

ndash Beam is separated in the transverse phase space usingbull Nonlinear magnetic elements (sextupoles and octupoles) to create stable islandsbull Slow (adiabatic) tune-variation to cross an appropriate resonance

ndash Beneficial effectsbull No mechanical device to slice the beam losses are reducedbull The phase space matching is improved bull The beamlets have the same emittance and optical parameters

Five beamlets separated by 1 PS turn

Result of the first extraction test in the PS extraction line (TT2) with one bunch

Courtesy MTE project - M Giovannozzi et al

Evolution of the horizontal beam distribution during the splitting

MTE extracted beam has been provided to the SPS for the last night of CNGS run2009 Start with classical extraction parallel prepare MTE provide first SFTPRO then CNGS

Outlook

BENE08 2 Dec 2008E Gschwendtner ABATB

31

Summarybull Start-up issues of CNGS have been

overcomendash a lot of work

bull CNGS 2008 run was very successfulndash 178 1019 pot ndash 1700 candidate events in OPERAndash exploring limits of CNGS facility

bull 2009 ndash full year of high intensity operationndash First tau neutrino events

BENE08 2 Dec 2008E Gschwendtner ABATB

32

Thank You to all the colleagues for their effort to make CNGS a

success this year

AB Department TS Department SCRPCNGS Secondary Beam Working Group MTE Project Team

BENE08 2 Dec 2008E Gschwendtner ABATB

33

CNGS Radiation SimulationsHigh-E (gt20 MeV) hadron fluence for a nominal year (45 E19 pot)

A

Fe

rra

ri

L

Sa

rch

iap

on

e e

t a

l F

LU

KA

sim

ula

tio

ns

20

08

CNGS Facility ndash Startup Issues

Dose in Gray for a nominal year (45 E19 pot)

2007 no shielding

2008++lt 10 Gry

F 106

~10 Gry2007 no shielding

F 104

lt 106 hcm2yr2008++

~1010 hcm2yr

BENE08 2 Dec 2008E Gschwendtner ABATB

34

3 prong vertex in the bottom layer of the emulsion

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

35

kink=0204 rad

Event GalleryOPERA Results

Other particles with very short life-time Charmed mesons produced by interactions Can contribute to background in case the muon from charm decay is missed

21 expected charm events during 2007-2008Seen 2 charm-like topologies

D+

neutrals

- (undetected)

h+

  • CNGS Operation Results 2008
  • Slide 2
  • CERN Neutrinos to Gran Sasso
  • CNGS Timeline
  • CNGS Conventional Neutrino Beams
  • CNGS Proton Beam Parameters
  • CNGS Target
  • CNGS Horn and Reflector
  • Muon Monitors
  • Radiation Issues - 2007 CNGS Run
  • Modifications in Shutdown 200708 due to Radiation Issues
  • Photo Gallery- Motorized Shielding Plugs
  • Junction to Target Chamber
  • Slide 14
  • CNGS Polarity Puzzle
  • Slide 16
  • CNGS 2008 Performance and Results
  • CNGS Run 2008
  • Supercycle
  • CNGS Run 2008 18 June- 03 Nov 2008
  • SPS Efficiency for CNGS
  • Beam Intensity
  • Beam Stability
  • Muon Monitors Measurements vs Simulations
  • OPERA
  • The OPERA Detector
  • OPERA Results 2008
  • Slide 28
  • Outlook 2009
  • Multi-Turn-Extraction
  • Summary
  • Slide 32
  • CNGS Radiation Simulations
  • Event Gallery
  • Slide 35
Page 18: CNGS Operation Results 2008 Edda Gschwendtner AB/ATB on behalf of the CNGS team.

BENE08 2 Dec 2008E Gschwendtner ABATB

18

CNGS Run 2008

Excellent performance of the CNGS FacilityCNGS modifications finished successfully

bull no radiation problemseffects in the electronics during the entire run 2008

bull excellent hornreflector performance during 2008 run

Beam line equipment bull Working well and stable (target horns detectorshellip)

18 June ndash 3 November 2008 178middot1019 protons on target

OPERA experimentndash 10100 on-time eventsndash 1700 candidate interactions in bricks

CNGS Facility ndash Performance 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

19

Supercycle48s supercycleNorth Area 3 CNGS 1LHC1MD 375 CNGS duty cycle

504s supercycle7 CNGS 1 LHC 83 CNGS duty cycle

SFTPRO 3xCNGS LHC MD 4x CNGS2xCNGS MTECNGS

LHC

CNGS Facility ndash Performance 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

20

CNGS Run 2008 18 June- 03 Nov 2008

0

2E+18

4E+18

6E+18

8E+18

1E+19

12E+19

14E+19

16E+19

18E+19

18-J

un

28-J

un

8-J

ul

18-J

ul

28-J

ul

7-A

ug

17-A

ug

27-A

ug

6-S

ep

16-S

ep

26-S

ep

6-O

ct

16-O

ct

26-O

ct

5-N

ov

inte

gra

ted

po

t

Total 1781019 pot

18kV cable repair

MD

PS magnet exchange septum bakeout

MD

SPS timing faultvacuum leak amp magnet exchange

CNGS maintenance

SPS extraction line Magnet ground fault MD

CNGS maintenance

CNGS Facility ndash Performance 2008

Nominal 45 1019 potyr for 5 years

Beam to CNGSLHC FT MD

Beam to CNGSLHC FT

Beam to CNGS MD

BENE08 2 Dec 2008E Gschwendtner ABATB

21

SPS Efficiency for CNGSCNGS Facility ndash Performance 2008

Integrated efficiency 6094

BENE08 2 Dec 2008E Gschwendtner ABATB

22

Beam Intensity

SPS beam intensityextraction

Error rms spread

RF problems

Number of extractions during 2008 run

Almost 1 million - 995000

Intensity limitsbull Losses in the PSbull SPS RF

Typical transmission of the CNGS beam through the SPS cycle ~ 92Injection losses ~ 6

CNGS Facility ndash Performance 2008

Proton beam data courtesy of J Wenninger

BENE08 2 Dec 2008E Gschwendtner ABATB

23

Beam StabilityTarget Beam Positionbull Excellent position stability ~50microns over entire runbull No active position feedback is necessary

ndash 1-2 small steeringsweek only

CNGS Facility ndash Performance 2008

Beam Stability seen in Muon Monitorsbull Position stability of muon beam in pit 2 is ~3cm rmsbull Beam position correlated to beam position on target

ndash Parallel displacement of primary beam on T40

-8

-7

-6

-5

-4

-3

-2

-1

0

1

2

3

10

29

00

0

10

29

02

8

10

29

05

7

10

29

12

6

10

29

15

5

10

29

22

4

10

29

25

2

10

29

32

1

10

29

35

0

10

29

41

9

10

29

44

8

10

29

51

6

10

29

54

5

10

29

61

4

10

29

64

3

cm

5cm shift of muon profile centroid

~80m parallel beam shift

Centroid of horizontal profile pit2

BENE08 2 Dec 2008E Gschwendtner ABATB

24

Muon Monitors Measurements vs Simulations

Excellent agreement

CNGS Facility ndash Performance 2008

pit 1 Horizontal

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 1

pit 1 Vertical

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Vertical Profile Pit 1 pit 2 Vertical

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Vertical Profile Pit 2

pit 2 Horizontal

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 2

P

Sal

a et

al

FLU

KA

sim

ulat

ion

s 20

08

MeasurementsSimulations

BENE08 2 Dec 2008E Gschwendtner ABATB

25

OPERA

BENE08 2 Dec 2008E Gschwendtner ABATB

26

bull Total target massndash 12 kton146621 emulsion-lead bricks

bull 2 super modules ndash Spectrometer 22 RPC planes in

magnetic field (15T) 6 Drift tube planes

ndash Target 27 lead emulsion brick walls alternated with scintillator planes

The OPERA DetectorOPERA Detector

BENE08 2 Dec 2008E Gschwendtner ABATB

27

OPERA Results 2008bull 10100 on-time eventsbull 1700 candidate interactions in bricks

Handling of 100 bricksweek

Up to 65 CSd scannedweek

CS delivered to the Scanning Stations

CS scanned

CS with a positive results

OPERA Results

Courtesy of D Autiero

BENE08 2 Dec 2008E Gschwendtner ABATB

28

Backward going charged particle(interesting as will allow to benchmark the MC simulation of back-scattering)

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

29

Outlook 2009bull 2009 Schedule CNGS physics start on 7 May 2009 total 175 days

Outlook

Protons on target in 2009 ~27middot1019 to ~5middot1019 potyr

Depends mainly on bull CNGS duty cyclebull beam intensityextraction

BENE08 2 Dec 2008E Gschwendtner ABATB

30

Multi-Turn-Extractionbull Novel extraction scheme from PS to SPS

ndash Beam is separated in the transverse phase space usingbull Nonlinear magnetic elements (sextupoles and octupoles) to create stable islandsbull Slow (adiabatic) tune-variation to cross an appropriate resonance

ndash Beneficial effectsbull No mechanical device to slice the beam losses are reducedbull The phase space matching is improved bull The beamlets have the same emittance and optical parameters

Five beamlets separated by 1 PS turn

Result of the first extraction test in the PS extraction line (TT2) with one bunch

Courtesy MTE project - M Giovannozzi et al

Evolution of the horizontal beam distribution during the splitting

MTE extracted beam has been provided to the SPS for the last night of CNGS run2009 Start with classical extraction parallel prepare MTE provide first SFTPRO then CNGS

Outlook

BENE08 2 Dec 2008E Gschwendtner ABATB

31

Summarybull Start-up issues of CNGS have been

overcomendash a lot of work

bull CNGS 2008 run was very successfulndash 178 1019 pot ndash 1700 candidate events in OPERAndash exploring limits of CNGS facility

bull 2009 ndash full year of high intensity operationndash First tau neutrino events

BENE08 2 Dec 2008E Gschwendtner ABATB

32

Thank You to all the colleagues for their effort to make CNGS a

success this year

AB Department TS Department SCRPCNGS Secondary Beam Working Group MTE Project Team

BENE08 2 Dec 2008E Gschwendtner ABATB

33

CNGS Radiation SimulationsHigh-E (gt20 MeV) hadron fluence for a nominal year (45 E19 pot)

A

Fe

rra

ri

L

Sa

rch

iap

on

e e

t a

l F

LU

KA

sim

ula

tio

ns

20

08

CNGS Facility ndash Startup Issues

Dose in Gray for a nominal year (45 E19 pot)

2007 no shielding

2008++lt 10 Gry

F 106

~10 Gry2007 no shielding

F 104

lt 106 hcm2yr2008++

~1010 hcm2yr

BENE08 2 Dec 2008E Gschwendtner ABATB

34

3 prong vertex in the bottom layer of the emulsion

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

35

kink=0204 rad

Event GalleryOPERA Results

Other particles with very short life-time Charmed mesons produced by interactions Can contribute to background in case the muon from charm decay is missed

21 expected charm events during 2007-2008Seen 2 charm-like topologies

D+

neutrals

- (undetected)

h+

  • CNGS Operation Results 2008
  • Slide 2
  • CERN Neutrinos to Gran Sasso
  • CNGS Timeline
  • CNGS Conventional Neutrino Beams
  • CNGS Proton Beam Parameters
  • CNGS Target
  • CNGS Horn and Reflector
  • Muon Monitors
  • Radiation Issues - 2007 CNGS Run
  • Modifications in Shutdown 200708 due to Radiation Issues
  • Photo Gallery- Motorized Shielding Plugs
  • Junction to Target Chamber
  • Slide 14
  • CNGS Polarity Puzzle
  • Slide 16
  • CNGS 2008 Performance and Results
  • CNGS Run 2008
  • Supercycle
  • CNGS Run 2008 18 June- 03 Nov 2008
  • SPS Efficiency for CNGS
  • Beam Intensity
  • Beam Stability
  • Muon Monitors Measurements vs Simulations
  • OPERA
  • The OPERA Detector
  • OPERA Results 2008
  • Slide 28
  • Outlook 2009
  • Multi-Turn-Extraction
  • Summary
  • Slide 32
  • CNGS Radiation Simulations
  • Event Gallery
  • Slide 35
Page 19: CNGS Operation Results 2008 Edda Gschwendtner AB/ATB on behalf of the CNGS team.

BENE08 2 Dec 2008E Gschwendtner ABATB

19

Supercycle48s supercycleNorth Area 3 CNGS 1LHC1MD 375 CNGS duty cycle

504s supercycle7 CNGS 1 LHC 83 CNGS duty cycle

SFTPRO 3xCNGS LHC MD 4x CNGS2xCNGS MTECNGS

LHC

CNGS Facility ndash Performance 2008

BENE08 2 Dec 2008E Gschwendtner ABATB

20

CNGS Run 2008 18 June- 03 Nov 2008

0

2E+18

4E+18

6E+18

8E+18

1E+19

12E+19

14E+19

16E+19

18E+19

18-J

un

28-J

un

8-J

ul

18-J

ul

28-J

ul

7-A

ug

17-A

ug

27-A

ug

6-S

ep

16-S

ep

26-S

ep

6-O

ct

16-O

ct

26-O

ct

5-N

ov

inte

gra

ted

po

t

Total 1781019 pot

18kV cable repair

MD

PS magnet exchange septum bakeout

MD

SPS timing faultvacuum leak amp magnet exchange

CNGS maintenance

SPS extraction line Magnet ground fault MD

CNGS maintenance

CNGS Facility ndash Performance 2008

Nominal 45 1019 potyr for 5 years

Beam to CNGSLHC FT MD

Beam to CNGSLHC FT

Beam to CNGS MD

BENE08 2 Dec 2008E Gschwendtner ABATB

21

SPS Efficiency for CNGSCNGS Facility ndash Performance 2008

Integrated efficiency 6094

BENE08 2 Dec 2008E Gschwendtner ABATB

22

Beam Intensity

SPS beam intensityextraction

Error rms spread

RF problems

Number of extractions during 2008 run

Almost 1 million - 995000

Intensity limitsbull Losses in the PSbull SPS RF

Typical transmission of the CNGS beam through the SPS cycle ~ 92Injection losses ~ 6

CNGS Facility ndash Performance 2008

Proton beam data courtesy of J Wenninger

BENE08 2 Dec 2008E Gschwendtner ABATB

23

Beam StabilityTarget Beam Positionbull Excellent position stability ~50microns over entire runbull No active position feedback is necessary

ndash 1-2 small steeringsweek only

CNGS Facility ndash Performance 2008

Beam Stability seen in Muon Monitorsbull Position stability of muon beam in pit 2 is ~3cm rmsbull Beam position correlated to beam position on target

ndash Parallel displacement of primary beam on T40

-8

-7

-6

-5

-4

-3

-2

-1

0

1

2

3

10

29

00

0

10

29

02

8

10

29

05

7

10

29

12

6

10

29

15

5

10

29

22

4

10

29

25

2

10

29

32

1

10

29

35

0

10

29

41

9

10

29

44

8

10

29

51

6

10

29

54

5

10

29

61

4

10

29

64

3

cm

5cm shift of muon profile centroid

~80m parallel beam shift

Centroid of horizontal profile pit2

BENE08 2 Dec 2008E Gschwendtner ABATB

24

Muon Monitors Measurements vs Simulations

Excellent agreement

CNGS Facility ndash Performance 2008

pit 1 Horizontal

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 1

pit 1 Vertical

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Vertical Profile Pit 1 pit 2 Vertical

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Vertical Profile Pit 2

pit 2 Horizontal

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 2

P

Sal

a et

al

FLU

KA

sim

ulat

ion

s 20

08

MeasurementsSimulations

BENE08 2 Dec 2008E Gschwendtner ABATB

25

OPERA

BENE08 2 Dec 2008E Gschwendtner ABATB

26

bull Total target massndash 12 kton146621 emulsion-lead bricks

bull 2 super modules ndash Spectrometer 22 RPC planes in

magnetic field (15T) 6 Drift tube planes

ndash Target 27 lead emulsion brick walls alternated with scintillator planes

The OPERA DetectorOPERA Detector

BENE08 2 Dec 2008E Gschwendtner ABATB

27

OPERA Results 2008bull 10100 on-time eventsbull 1700 candidate interactions in bricks

Handling of 100 bricksweek

Up to 65 CSd scannedweek

CS delivered to the Scanning Stations

CS scanned

CS with a positive results

OPERA Results

Courtesy of D Autiero

BENE08 2 Dec 2008E Gschwendtner ABATB

28

Backward going charged particle(interesting as will allow to benchmark the MC simulation of back-scattering)

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

29

Outlook 2009bull 2009 Schedule CNGS physics start on 7 May 2009 total 175 days

Outlook

Protons on target in 2009 ~27middot1019 to ~5middot1019 potyr

Depends mainly on bull CNGS duty cyclebull beam intensityextraction

BENE08 2 Dec 2008E Gschwendtner ABATB

30

Multi-Turn-Extractionbull Novel extraction scheme from PS to SPS

ndash Beam is separated in the transverse phase space usingbull Nonlinear magnetic elements (sextupoles and octupoles) to create stable islandsbull Slow (adiabatic) tune-variation to cross an appropriate resonance

ndash Beneficial effectsbull No mechanical device to slice the beam losses are reducedbull The phase space matching is improved bull The beamlets have the same emittance and optical parameters

Five beamlets separated by 1 PS turn

Result of the first extraction test in the PS extraction line (TT2) with one bunch

Courtesy MTE project - M Giovannozzi et al

Evolution of the horizontal beam distribution during the splitting

MTE extracted beam has been provided to the SPS for the last night of CNGS run2009 Start with classical extraction parallel prepare MTE provide first SFTPRO then CNGS

Outlook

BENE08 2 Dec 2008E Gschwendtner ABATB

31

Summarybull Start-up issues of CNGS have been

overcomendash a lot of work

bull CNGS 2008 run was very successfulndash 178 1019 pot ndash 1700 candidate events in OPERAndash exploring limits of CNGS facility

bull 2009 ndash full year of high intensity operationndash First tau neutrino events

BENE08 2 Dec 2008E Gschwendtner ABATB

32

Thank You to all the colleagues for their effort to make CNGS a

success this year

AB Department TS Department SCRPCNGS Secondary Beam Working Group MTE Project Team

BENE08 2 Dec 2008E Gschwendtner ABATB

33

CNGS Radiation SimulationsHigh-E (gt20 MeV) hadron fluence for a nominal year (45 E19 pot)

A

Fe

rra

ri

L

Sa

rch

iap

on

e e

t a

l F

LU

KA

sim

ula

tio

ns

20

08

CNGS Facility ndash Startup Issues

Dose in Gray for a nominal year (45 E19 pot)

2007 no shielding

2008++lt 10 Gry

F 106

~10 Gry2007 no shielding

F 104

lt 106 hcm2yr2008++

~1010 hcm2yr

BENE08 2 Dec 2008E Gschwendtner ABATB

34

3 prong vertex in the bottom layer of the emulsion

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

35

kink=0204 rad

Event GalleryOPERA Results

Other particles with very short life-time Charmed mesons produced by interactions Can contribute to background in case the muon from charm decay is missed

21 expected charm events during 2007-2008Seen 2 charm-like topologies

D+

neutrals

- (undetected)

h+

  • CNGS Operation Results 2008
  • Slide 2
  • CERN Neutrinos to Gran Sasso
  • CNGS Timeline
  • CNGS Conventional Neutrino Beams
  • CNGS Proton Beam Parameters
  • CNGS Target
  • CNGS Horn and Reflector
  • Muon Monitors
  • Radiation Issues - 2007 CNGS Run
  • Modifications in Shutdown 200708 due to Radiation Issues
  • Photo Gallery- Motorized Shielding Plugs
  • Junction to Target Chamber
  • Slide 14
  • CNGS Polarity Puzzle
  • Slide 16
  • CNGS 2008 Performance and Results
  • CNGS Run 2008
  • Supercycle
  • CNGS Run 2008 18 June- 03 Nov 2008
  • SPS Efficiency for CNGS
  • Beam Intensity
  • Beam Stability
  • Muon Monitors Measurements vs Simulations
  • OPERA
  • The OPERA Detector
  • OPERA Results 2008
  • Slide 28
  • Outlook 2009
  • Multi-Turn-Extraction
  • Summary
  • Slide 32
  • CNGS Radiation Simulations
  • Event Gallery
  • Slide 35
Page 20: CNGS Operation Results 2008 Edda Gschwendtner AB/ATB on behalf of the CNGS team.

BENE08 2 Dec 2008E Gschwendtner ABATB

20

CNGS Run 2008 18 June- 03 Nov 2008

0

2E+18

4E+18

6E+18

8E+18

1E+19

12E+19

14E+19

16E+19

18E+19

18-J

un

28-J

un

8-J

ul

18-J

ul

28-J

ul

7-A

ug

17-A

ug

27-A

ug

6-S

ep

16-S

ep

26-S

ep

6-O

ct

16-O

ct

26-O

ct

5-N

ov

inte

gra

ted

po

t

Total 1781019 pot

18kV cable repair

MD

PS magnet exchange septum bakeout

MD

SPS timing faultvacuum leak amp magnet exchange

CNGS maintenance

SPS extraction line Magnet ground fault MD

CNGS maintenance

CNGS Facility ndash Performance 2008

Nominal 45 1019 potyr for 5 years

Beam to CNGSLHC FT MD

Beam to CNGSLHC FT

Beam to CNGS MD

BENE08 2 Dec 2008E Gschwendtner ABATB

21

SPS Efficiency for CNGSCNGS Facility ndash Performance 2008

Integrated efficiency 6094

BENE08 2 Dec 2008E Gschwendtner ABATB

22

Beam Intensity

SPS beam intensityextraction

Error rms spread

RF problems

Number of extractions during 2008 run

Almost 1 million - 995000

Intensity limitsbull Losses in the PSbull SPS RF

Typical transmission of the CNGS beam through the SPS cycle ~ 92Injection losses ~ 6

CNGS Facility ndash Performance 2008

Proton beam data courtesy of J Wenninger

BENE08 2 Dec 2008E Gschwendtner ABATB

23

Beam StabilityTarget Beam Positionbull Excellent position stability ~50microns over entire runbull No active position feedback is necessary

ndash 1-2 small steeringsweek only

CNGS Facility ndash Performance 2008

Beam Stability seen in Muon Monitorsbull Position stability of muon beam in pit 2 is ~3cm rmsbull Beam position correlated to beam position on target

ndash Parallel displacement of primary beam on T40

-8

-7

-6

-5

-4

-3

-2

-1

0

1

2

3

10

29

00

0

10

29

02

8

10

29

05

7

10

29

12

6

10

29

15

5

10

29

22

4

10

29

25

2

10

29

32

1

10

29

35

0

10

29

41

9

10

29

44

8

10

29

51

6

10

29

54

5

10

29

61

4

10

29

64

3

cm

5cm shift of muon profile centroid

~80m parallel beam shift

Centroid of horizontal profile pit2

BENE08 2 Dec 2008E Gschwendtner ABATB

24

Muon Monitors Measurements vs Simulations

Excellent agreement

CNGS Facility ndash Performance 2008

pit 1 Horizontal

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 1

pit 1 Vertical

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Vertical Profile Pit 1 pit 2 Vertical

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Vertical Profile Pit 2

pit 2 Horizontal

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 2

P

Sal

a et

al

FLU

KA

sim

ulat

ion

s 20

08

MeasurementsSimulations

BENE08 2 Dec 2008E Gschwendtner ABATB

25

OPERA

BENE08 2 Dec 2008E Gschwendtner ABATB

26

bull Total target massndash 12 kton146621 emulsion-lead bricks

bull 2 super modules ndash Spectrometer 22 RPC planes in

magnetic field (15T) 6 Drift tube planes

ndash Target 27 lead emulsion brick walls alternated with scintillator planes

The OPERA DetectorOPERA Detector

BENE08 2 Dec 2008E Gschwendtner ABATB

27

OPERA Results 2008bull 10100 on-time eventsbull 1700 candidate interactions in bricks

Handling of 100 bricksweek

Up to 65 CSd scannedweek

CS delivered to the Scanning Stations

CS scanned

CS with a positive results

OPERA Results

Courtesy of D Autiero

BENE08 2 Dec 2008E Gschwendtner ABATB

28

Backward going charged particle(interesting as will allow to benchmark the MC simulation of back-scattering)

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

29

Outlook 2009bull 2009 Schedule CNGS physics start on 7 May 2009 total 175 days

Outlook

Protons on target in 2009 ~27middot1019 to ~5middot1019 potyr

Depends mainly on bull CNGS duty cyclebull beam intensityextraction

BENE08 2 Dec 2008E Gschwendtner ABATB

30

Multi-Turn-Extractionbull Novel extraction scheme from PS to SPS

ndash Beam is separated in the transverse phase space usingbull Nonlinear magnetic elements (sextupoles and octupoles) to create stable islandsbull Slow (adiabatic) tune-variation to cross an appropriate resonance

ndash Beneficial effectsbull No mechanical device to slice the beam losses are reducedbull The phase space matching is improved bull The beamlets have the same emittance and optical parameters

Five beamlets separated by 1 PS turn

Result of the first extraction test in the PS extraction line (TT2) with one bunch

Courtesy MTE project - M Giovannozzi et al

Evolution of the horizontal beam distribution during the splitting

MTE extracted beam has been provided to the SPS for the last night of CNGS run2009 Start with classical extraction parallel prepare MTE provide first SFTPRO then CNGS

Outlook

BENE08 2 Dec 2008E Gschwendtner ABATB

31

Summarybull Start-up issues of CNGS have been

overcomendash a lot of work

bull CNGS 2008 run was very successfulndash 178 1019 pot ndash 1700 candidate events in OPERAndash exploring limits of CNGS facility

bull 2009 ndash full year of high intensity operationndash First tau neutrino events

BENE08 2 Dec 2008E Gschwendtner ABATB

32

Thank You to all the colleagues for their effort to make CNGS a

success this year

AB Department TS Department SCRPCNGS Secondary Beam Working Group MTE Project Team

BENE08 2 Dec 2008E Gschwendtner ABATB

33

CNGS Radiation SimulationsHigh-E (gt20 MeV) hadron fluence for a nominal year (45 E19 pot)

A

Fe

rra

ri

L

Sa

rch

iap

on

e e

t a

l F

LU

KA

sim

ula

tio

ns

20

08

CNGS Facility ndash Startup Issues

Dose in Gray for a nominal year (45 E19 pot)

2007 no shielding

2008++lt 10 Gry

F 106

~10 Gry2007 no shielding

F 104

lt 106 hcm2yr2008++

~1010 hcm2yr

BENE08 2 Dec 2008E Gschwendtner ABATB

34

3 prong vertex in the bottom layer of the emulsion

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

35

kink=0204 rad

Event GalleryOPERA Results

Other particles with very short life-time Charmed mesons produced by interactions Can contribute to background in case the muon from charm decay is missed

21 expected charm events during 2007-2008Seen 2 charm-like topologies

D+

neutrals

- (undetected)

h+

  • CNGS Operation Results 2008
  • Slide 2
  • CERN Neutrinos to Gran Sasso
  • CNGS Timeline
  • CNGS Conventional Neutrino Beams
  • CNGS Proton Beam Parameters
  • CNGS Target
  • CNGS Horn and Reflector
  • Muon Monitors
  • Radiation Issues - 2007 CNGS Run
  • Modifications in Shutdown 200708 due to Radiation Issues
  • Photo Gallery- Motorized Shielding Plugs
  • Junction to Target Chamber
  • Slide 14
  • CNGS Polarity Puzzle
  • Slide 16
  • CNGS 2008 Performance and Results
  • CNGS Run 2008
  • Supercycle
  • CNGS Run 2008 18 June- 03 Nov 2008
  • SPS Efficiency for CNGS
  • Beam Intensity
  • Beam Stability
  • Muon Monitors Measurements vs Simulations
  • OPERA
  • The OPERA Detector
  • OPERA Results 2008
  • Slide 28
  • Outlook 2009
  • Multi-Turn-Extraction
  • Summary
  • Slide 32
  • CNGS Radiation Simulations
  • Event Gallery
  • Slide 35
Page 21: CNGS Operation Results 2008 Edda Gschwendtner AB/ATB on behalf of the CNGS team.

BENE08 2 Dec 2008E Gschwendtner ABATB

21

SPS Efficiency for CNGSCNGS Facility ndash Performance 2008

Integrated efficiency 6094

BENE08 2 Dec 2008E Gschwendtner ABATB

22

Beam Intensity

SPS beam intensityextraction

Error rms spread

RF problems

Number of extractions during 2008 run

Almost 1 million - 995000

Intensity limitsbull Losses in the PSbull SPS RF

Typical transmission of the CNGS beam through the SPS cycle ~ 92Injection losses ~ 6

CNGS Facility ndash Performance 2008

Proton beam data courtesy of J Wenninger

BENE08 2 Dec 2008E Gschwendtner ABATB

23

Beam StabilityTarget Beam Positionbull Excellent position stability ~50microns over entire runbull No active position feedback is necessary

ndash 1-2 small steeringsweek only

CNGS Facility ndash Performance 2008

Beam Stability seen in Muon Monitorsbull Position stability of muon beam in pit 2 is ~3cm rmsbull Beam position correlated to beam position on target

ndash Parallel displacement of primary beam on T40

-8

-7

-6

-5

-4

-3

-2

-1

0

1

2

3

10

29

00

0

10

29

02

8

10

29

05

7

10

29

12

6

10

29

15

5

10

29

22

4

10

29

25

2

10

29

32

1

10

29

35

0

10

29

41

9

10

29

44

8

10

29

51

6

10

29

54

5

10

29

61

4

10

29

64

3

cm

5cm shift of muon profile centroid

~80m parallel beam shift

Centroid of horizontal profile pit2

BENE08 2 Dec 2008E Gschwendtner ABATB

24

Muon Monitors Measurements vs Simulations

Excellent agreement

CNGS Facility ndash Performance 2008

pit 1 Horizontal

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 1

pit 1 Vertical

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Vertical Profile Pit 1 pit 2 Vertical

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Vertical Profile Pit 2

pit 2 Horizontal

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 2

P

Sal

a et

al

FLU

KA

sim

ulat

ion

s 20

08

MeasurementsSimulations

BENE08 2 Dec 2008E Gschwendtner ABATB

25

OPERA

BENE08 2 Dec 2008E Gschwendtner ABATB

26

bull Total target massndash 12 kton146621 emulsion-lead bricks

bull 2 super modules ndash Spectrometer 22 RPC planes in

magnetic field (15T) 6 Drift tube planes

ndash Target 27 lead emulsion brick walls alternated with scintillator planes

The OPERA DetectorOPERA Detector

BENE08 2 Dec 2008E Gschwendtner ABATB

27

OPERA Results 2008bull 10100 on-time eventsbull 1700 candidate interactions in bricks

Handling of 100 bricksweek

Up to 65 CSd scannedweek

CS delivered to the Scanning Stations

CS scanned

CS with a positive results

OPERA Results

Courtesy of D Autiero

BENE08 2 Dec 2008E Gschwendtner ABATB

28

Backward going charged particle(interesting as will allow to benchmark the MC simulation of back-scattering)

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

29

Outlook 2009bull 2009 Schedule CNGS physics start on 7 May 2009 total 175 days

Outlook

Protons on target in 2009 ~27middot1019 to ~5middot1019 potyr

Depends mainly on bull CNGS duty cyclebull beam intensityextraction

BENE08 2 Dec 2008E Gschwendtner ABATB

30

Multi-Turn-Extractionbull Novel extraction scheme from PS to SPS

ndash Beam is separated in the transverse phase space usingbull Nonlinear magnetic elements (sextupoles and octupoles) to create stable islandsbull Slow (adiabatic) tune-variation to cross an appropriate resonance

ndash Beneficial effectsbull No mechanical device to slice the beam losses are reducedbull The phase space matching is improved bull The beamlets have the same emittance and optical parameters

Five beamlets separated by 1 PS turn

Result of the first extraction test in the PS extraction line (TT2) with one bunch

Courtesy MTE project - M Giovannozzi et al

Evolution of the horizontal beam distribution during the splitting

MTE extracted beam has been provided to the SPS for the last night of CNGS run2009 Start with classical extraction parallel prepare MTE provide first SFTPRO then CNGS

Outlook

BENE08 2 Dec 2008E Gschwendtner ABATB

31

Summarybull Start-up issues of CNGS have been

overcomendash a lot of work

bull CNGS 2008 run was very successfulndash 178 1019 pot ndash 1700 candidate events in OPERAndash exploring limits of CNGS facility

bull 2009 ndash full year of high intensity operationndash First tau neutrino events

BENE08 2 Dec 2008E Gschwendtner ABATB

32

Thank You to all the colleagues for their effort to make CNGS a

success this year

AB Department TS Department SCRPCNGS Secondary Beam Working Group MTE Project Team

BENE08 2 Dec 2008E Gschwendtner ABATB

33

CNGS Radiation SimulationsHigh-E (gt20 MeV) hadron fluence for a nominal year (45 E19 pot)

A

Fe

rra

ri

L

Sa

rch

iap

on

e e

t a

l F

LU

KA

sim

ula

tio

ns

20

08

CNGS Facility ndash Startup Issues

Dose in Gray for a nominal year (45 E19 pot)

2007 no shielding

2008++lt 10 Gry

F 106

~10 Gry2007 no shielding

F 104

lt 106 hcm2yr2008++

~1010 hcm2yr

BENE08 2 Dec 2008E Gschwendtner ABATB

34

3 prong vertex in the bottom layer of the emulsion

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

35

kink=0204 rad

Event GalleryOPERA Results

Other particles with very short life-time Charmed mesons produced by interactions Can contribute to background in case the muon from charm decay is missed

21 expected charm events during 2007-2008Seen 2 charm-like topologies

D+

neutrals

- (undetected)

h+

  • CNGS Operation Results 2008
  • Slide 2
  • CERN Neutrinos to Gran Sasso
  • CNGS Timeline
  • CNGS Conventional Neutrino Beams
  • CNGS Proton Beam Parameters
  • CNGS Target
  • CNGS Horn and Reflector
  • Muon Monitors
  • Radiation Issues - 2007 CNGS Run
  • Modifications in Shutdown 200708 due to Radiation Issues
  • Photo Gallery- Motorized Shielding Plugs
  • Junction to Target Chamber
  • Slide 14
  • CNGS Polarity Puzzle
  • Slide 16
  • CNGS 2008 Performance and Results
  • CNGS Run 2008
  • Supercycle
  • CNGS Run 2008 18 June- 03 Nov 2008
  • SPS Efficiency for CNGS
  • Beam Intensity
  • Beam Stability
  • Muon Monitors Measurements vs Simulations
  • OPERA
  • The OPERA Detector
  • OPERA Results 2008
  • Slide 28
  • Outlook 2009
  • Multi-Turn-Extraction
  • Summary
  • Slide 32
  • CNGS Radiation Simulations
  • Event Gallery
  • Slide 35
Page 22: CNGS Operation Results 2008 Edda Gschwendtner AB/ATB on behalf of the CNGS team.

BENE08 2 Dec 2008E Gschwendtner ABATB

22

Beam Intensity

SPS beam intensityextraction

Error rms spread

RF problems

Number of extractions during 2008 run

Almost 1 million - 995000

Intensity limitsbull Losses in the PSbull SPS RF

Typical transmission of the CNGS beam through the SPS cycle ~ 92Injection losses ~ 6

CNGS Facility ndash Performance 2008

Proton beam data courtesy of J Wenninger

BENE08 2 Dec 2008E Gschwendtner ABATB

23

Beam StabilityTarget Beam Positionbull Excellent position stability ~50microns over entire runbull No active position feedback is necessary

ndash 1-2 small steeringsweek only

CNGS Facility ndash Performance 2008

Beam Stability seen in Muon Monitorsbull Position stability of muon beam in pit 2 is ~3cm rmsbull Beam position correlated to beam position on target

ndash Parallel displacement of primary beam on T40

-8

-7

-6

-5

-4

-3

-2

-1

0

1

2

3

10

29

00

0

10

29

02

8

10

29

05

7

10

29

12

6

10

29

15

5

10

29

22

4

10

29

25

2

10

29

32

1

10

29

35

0

10

29

41

9

10

29

44

8

10

29

51

6

10

29

54

5

10

29

61

4

10

29

64

3

cm

5cm shift of muon profile centroid

~80m parallel beam shift

Centroid of horizontal profile pit2

BENE08 2 Dec 2008E Gschwendtner ABATB

24

Muon Monitors Measurements vs Simulations

Excellent agreement

CNGS Facility ndash Performance 2008

pit 1 Horizontal

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 1

pit 1 Vertical

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Vertical Profile Pit 1 pit 2 Vertical

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Vertical Profile Pit 2

pit 2 Horizontal

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 2

P

Sal

a et

al

FLU

KA

sim

ulat

ion

s 20

08

MeasurementsSimulations

BENE08 2 Dec 2008E Gschwendtner ABATB

25

OPERA

BENE08 2 Dec 2008E Gschwendtner ABATB

26

bull Total target massndash 12 kton146621 emulsion-lead bricks

bull 2 super modules ndash Spectrometer 22 RPC planes in

magnetic field (15T) 6 Drift tube planes

ndash Target 27 lead emulsion brick walls alternated with scintillator planes

The OPERA DetectorOPERA Detector

BENE08 2 Dec 2008E Gschwendtner ABATB

27

OPERA Results 2008bull 10100 on-time eventsbull 1700 candidate interactions in bricks

Handling of 100 bricksweek

Up to 65 CSd scannedweek

CS delivered to the Scanning Stations

CS scanned

CS with a positive results

OPERA Results

Courtesy of D Autiero

BENE08 2 Dec 2008E Gschwendtner ABATB

28

Backward going charged particle(interesting as will allow to benchmark the MC simulation of back-scattering)

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

29

Outlook 2009bull 2009 Schedule CNGS physics start on 7 May 2009 total 175 days

Outlook

Protons on target in 2009 ~27middot1019 to ~5middot1019 potyr

Depends mainly on bull CNGS duty cyclebull beam intensityextraction

BENE08 2 Dec 2008E Gschwendtner ABATB

30

Multi-Turn-Extractionbull Novel extraction scheme from PS to SPS

ndash Beam is separated in the transverse phase space usingbull Nonlinear magnetic elements (sextupoles and octupoles) to create stable islandsbull Slow (adiabatic) tune-variation to cross an appropriate resonance

ndash Beneficial effectsbull No mechanical device to slice the beam losses are reducedbull The phase space matching is improved bull The beamlets have the same emittance and optical parameters

Five beamlets separated by 1 PS turn

Result of the first extraction test in the PS extraction line (TT2) with one bunch

Courtesy MTE project - M Giovannozzi et al

Evolution of the horizontal beam distribution during the splitting

MTE extracted beam has been provided to the SPS for the last night of CNGS run2009 Start with classical extraction parallel prepare MTE provide first SFTPRO then CNGS

Outlook

BENE08 2 Dec 2008E Gschwendtner ABATB

31

Summarybull Start-up issues of CNGS have been

overcomendash a lot of work

bull CNGS 2008 run was very successfulndash 178 1019 pot ndash 1700 candidate events in OPERAndash exploring limits of CNGS facility

bull 2009 ndash full year of high intensity operationndash First tau neutrino events

BENE08 2 Dec 2008E Gschwendtner ABATB

32

Thank You to all the colleagues for their effort to make CNGS a

success this year

AB Department TS Department SCRPCNGS Secondary Beam Working Group MTE Project Team

BENE08 2 Dec 2008E Gschwendtner ABATB

33

CNGS Radiation SimulationsHigh-E (gt20 MeV) hadron fluence for a nominal year (45 E19 pot)

A

Fe

rra

ri

L

Sa

rch

iap

on

e e

t a

l F

LU

KA

sim

ula

tio

ns

20

08

CNGS Facility ndash Startup Issues

Dose in Gray for a nominal year (45 E19 pot)

2007 no shielding

2008++lt 10 Gry

F 106

~10 Gry2007 no shielding

F 104

lt 106 hcm2yr2008++

~1010 hcm2yr

BENE08 2 Dec 2008E Gschwendtner ABATB

34

3 prong vertex in the bottom layer of the emulsion

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

35

kink=0204 rad

Event GalleryOPERA Results

Other particles with very short life-time Charmed mesons produced by interactions Can contribute to background in case the muon from charm decay is missed

21 expected charm events during 2007-2008Seen 2 charm-like topologies

D+

neutrals

- (undetected)

h+

  • CNGS Operation Results 2008
  • Slide 2
  • CERN Neutrinos to Gran Sasso
  • CNGS Timeline
  • CNGS Conventional Neutrino Beams
  • CNGS Proton Beam Parameters
  • CNGS Target
  • CNGS Horn and Reflector
  • Muon Monitors
  • Radiation Issues - 2007 CNGS Run
  • Modifications in Shutdown 200708 due to Radiation Issues
  • Photo Gallery- Motorized Shielding Plugs
  • Junction to Target Chamber
  • Slide 14
  • CNGS Polarity Puzzle
  • Slide 16
  • CNGS 2008 Performance and Results
  • CNGS Run 2008
  • Supercycle
  • CNGS Run 2008 18 June- 03 Nov 2008
  • SPS Efficiency for CNGS
  • Beam Intensity
  • Beam Stability
  • Muon Monitors Measurements vs Simulations
  • OPERA
  • The OPERA Detector
  • OPERA Results 2008
  • Slide 28
  • Outlook 2009
  • Multi-Turn-Extraction
  • Summary
  • Slide 32
  • CNGS Radiation Simulations
  • Event Gallery
  • Slide 35
Page 23: CNGS Operation Results 2008 Edda Gschwendtner AB/ATB on behalf of the CNGS team.

BENE08 2 Dec 2008E Gschwendtner ABATB

23

Beam StabilityTarget Beam Positionbull Excellent position stability ~50microns over entire runbull No active position feedback is necessary

ndash 1-2 small steeringsweek only

CNGS Facility ndash Performance 2008

Beam Stability seen in Muon Monitorsbull Position stability of muon beam in pit 2 is ~3cm rmsbull Beam position correlated to beam position on target

ndash Parallel displacement of primary beam on T40

-8

-7

-6

-5

-4

-3

-2

-1

0

1

2

3

10

29

00

0

10

29

02

8

10

29

05

7

10

29

12

6

10

29

15

5

10

29

22

4

10

29

25

2

10

29

32

1

10

29

35

0

10

29

41

9

10

29

44

8

10

29

51

6

10

29

54

5

10

29

61

4

10

29

64

3

cm

5cm shift of muon profile centroid

~80m parallel beam shift

Centroid of horizontal profile pit2

BENE08 2 Dec 2008E Gschwendtner ABATB

24

Muon Monitors Measurements vs Simulations

Excellent agreement

CNGS Facility ndash Performance 2008

pit 1 Horizontal

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 1

pit 1 Vertical

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Vertical Profile Pit 1 pit 2 Vertical

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Vertical Profile Pit 2

pit 2 Horizontal

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 2

P

Sal

a et

al

FLU

KA

sim

ulat

ion

s 20

08

MeasurementsSimulations

BENE08 2 Dec 2008E Gschwendtner ABATB

25

OPERA

BENE08 2 Dec 2008E Gschwendtner ABATB

26

bull Total target massndash 12 kton146621 emulsion-lead bricks

bull 2 super modules ndash Spectrometer 22 RPC planes in

magnetic field (15T) 6 Drift tube planes

ndash Target 27 lead emulsion brick walls alternated with scintillator planes

The OPERA DetectorOPERA Detector

BENE08 2 Dec 2008E Gschwendtner ABATB

27

OPERA Results 2008bull 10100 on-time eventsbull 1700 candidate interactions in bricks

Handling of 100 bricksweek

Up to 65 CSd scannedweek

CS delivered to the Scanning Stations

CS scanned

CS with a positive results

OPERA Results

Courtesy of D Autiero

BENE08 2 Dec 2008E Gschwendtner ABATB

28

Backward going charged particle(interesting as will allow to benchmark the MC simulation of back-scattering)

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

29

Outlook 2009bull 2009 Schedule CNGS physics start on 7 May 2009 total 175 days

Outlook

Protons on target in 2009 ~27middot1019 to ~5middot1019 potyr

Depends mainly on bull CNGS duty cyclebull beam intensityextraction

BENE08 2 Dec 2008E Gschwendtner ABATB

30

Multi-Turn-Extractionbull Novel extraction scheme from PS to SPS

ndash Beam is separated in the transverse phase space usingbull Nonlinear magnetic elements (sextupoles and octupoles) to create stable islandsbull Slow (adiabatic) tune-variation to cross an appropriate resonance

ndash Beneficial effectsbull No mechanical device to slice the beam losses are reducedbull The phase space matching is improved bull The beamlets have the same emittance and optical parameters

Five beamlets separated by 1 PS turn

Result of the first extraction test in the PS extraction line (TT2) with one bunch

Courtesy MTE project - M Giovannozzi et al

Evolution of the horizontal beam distribution during the splitting

MTE extracted beam has been provided to the SPS for the last night of CNGS run2009 Start with classical extraction parallel prepare MTE provide first SFTPRO then CNGS

Outlook

BENE08 2 Dec 2008E Gschwendtner ABATB

31

Summarybull Start-up issues of CNGS have been

overcomendash a lot of work

bull CNGS 2008 run was very successfulndash 178 1019 pot ndash 1700 candidate events in OPERAndash exploring limits of CNGS facility

bull 2009 ndash full year of high intensity operationndash First tau neutrino events

BENE08 2 Dec 2008E Gschwendtner ABATB

32

Thank You to all the colleagues for their effort to make CNGS a

success this year

AB Department TS Department SCRPCNGS Secondary Beam Working Group MTE Project Team

BENE08 2 Dec 2008E Gschwendtner ABATB

33

CNGS Radiation SimulationsHigh-E (gt20 MeV) hadron fluence for a nominal year (45 E19 pot)

A

Fe

rra

ri

L

Sa

rch

iap

on

e e

t a

l F

LU

KA

sim

ula

tio

ns

20

08

CNGS Facility ndash Startup Issues

Dose in Gray for a nominal year (45 E19 pot)

2007 no shielding

2008++lt 10 Gry

F 106

~10 Gry2007 no shielding

F 104

lt 106 hcm2yr2008++

~1010 hcm2yr

BENE08 2 Dec 2008E Gschwendtner ABATB

34

3 prong vertex in the bottom layer of the emulsion

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

35

kink=0204 rad

Event GalleryOPERA Results

Other particles with very short life-time Charmed mesons produced by interactions Can contribute to background in case the muon from charm decay is missed

21 expected charm events during 2007-2008Seen 2 charm-like topologies

D+

neutrals

- (undetected)

h+

  • CNGS Operation Results 2008
  • Slide 2
  • CERN Neutrinos to Gran Sasso
  • CNGS Timeline
  • CNGS Conventional Neutrino Beams
  • CNGS Proton Beam Parameters
  • CNGS Target
  • CNGS Horn and Reflector
  • Muon Monitors
  • Radiation Issues - 2007 CNGS Run
  • Modifications in Shutdown 200708 due to Radiation Issues
  • Photo Gallery- Motorized Shielding Plugs
  • Junction to Target Chamber
  • Slide 14
  • CNGS Polarity Puzzle
  • Slide 16
  • CNGS 2008 Performance and Results
  • CNGS Run 2008
  • Supercycle
  • CNGS Run 2008 18 June- 03 Nov 2008
  • SPS Efficiency for CNGS
  • Beam Intensity
  • Beam Stability
  • Muon Monitors Measurements vs Simulations
  • OPERA
  • The OPERA Detector
  • OPERA Results 2008
  • Slide 28
  • Outlook 2009
  • Multi-Turn-Extraction
  • Summary
  • Slide 32
  • CNGS Radiation Simulations
  • Event Gallery
  • Slide 35
Page 24: CNGS Operation Results 2008 Edda Gschwendtner AB/ATB on behalf of the CNGS team.

BENE08 2 Dec 2008E Gschwendtner ABATB

24

Muon Monitors Measurements vs Simulations

Excellent agreement

CNGS Facility ndash Performance 2008

pit 1 Horizontal

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 1

pit 1 Vertical

0

005

01

015

02

025

03

035

04

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Vertical Profile Pit 1 pit 2 Vertical

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575

cm

ch

po

t

measurement

simulation

Vertical Profile Pit 2

pit 2 Horizontal

0

0002

0004

0006

0008

001

0012

0014

-1575 -135 -1125 -90 -675 -45 -225 0 225 45 675 90 1125 135 1575cm

ch

po

t

measurement

simulation

Horizontal Profile Pit 2

P

Sal

a et

al

FLU

KA

sim

ulat

ion

s 20

08

MeasurementsSimulations

BENE08 2 Dec 2008E Gschwendtner ABATB

25

OPERA

BENE08 2 Dec 2008E Gschwendtner ABATB

26

bull Total target massndash 12 kton146621 emulsion-lead bricks

bull 2 super modules ndash Spectrometer 22 RPC planes in

magnetic field (15T) 6 Drift tube planes

ndash Target 27 lead emulsion brick walls alternated with scintillator planes

The OPERA DetectorOPERA Detector

BENE08 2 Dec 2008E Gschwendtner ABATB

27

OPERA Results 2008bull 10100 on-time eventsbull 1700 candidate interactions in bricks

Handling of 100 bricksweek

Up to 65 CSd scannedweek

CS delivered to the Scanning Stations

CS scanned

CS with a positive results

OPERA Results

Courtesy of D Autiero

BENE08 2 Dec 2008E Gschwendtner ABATB

28

Backward going charged particle(interesting as will allow to benchmark the MC simulation of back-scattering)

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

29

Outlook 2009bull 2009 Schedule CNGS physics start on 7 May 2009 total 175 days

Outlook

Protons on target in 2009 ~27middot1019 to ~5middot1019 potyr

Depends mainly on bull CNGS duty cyclebull beam intensityextraction

BENE08 2 Dec 2008E Gschwendtner ABATB

30

Multi-Turn-Extractionbull Novel extraction scheme from PS to SPS

ndash Beam is separated in the transverse phase space usingbull Nonlinear magnetic elements (sextupoles and octupoles) to create stable islandsbull Slow (adiabatic) tune-variation to cross an appropriate resonance

ndash Beneficial effectsbull No mechanical device to slice the beam losses are reducedbull The phase space matching is improved bull The beamlets have the same emittance and optical parameters

Five beamlets separated by 1 PS turn

Result of the first extraction test in the PS extraction line (TT2) with one bunch

Courtesy MTE project - M Giovannozzi et al

Evolution of the horizontal beam distribution during the splitting

MTE extracted beam has been provided to the SPS for the last night of CNGS run2009 Start with classical extraction parallel prepare MTE provide first SFTPRO then CNGS

Outlook

BENE08 2 Dec 2008E Gschwendtner ABATB

31

Summarybull Start-up issues of CNGS have been

overcomendash a lot of work

bull CNGS 2008 run was very successfulndash 178 1019 pot ndash 1700 candidate events in OPERAndash exploring limits of CNGS facility

bull 2009 ndash full year of high intensity operationndash First tau neutrino events

BENE08 2 Dec 2008E Gschwendtner ABATB

32

Thank You to all the colleagues for their effort to make CNGS a

success this year

AB Department TS Department SCRPCNGS Secondary Beam Working Group MTE Project Team

BENE08 2 Dec 2008E Gschwendtner ABATB

33

CNGS Radiation SimulationsHigh-E (gt20 MeV) hadron fluence for a nominal year (45 E19 pot)

A

Fe

rra

ri

L

Sa

rch

iap

on

e e

t a

l F

LU

KA

sim

ula

tio

ns

20

08

CNGS Facility ndash Startup Issues

Dose in Gray for a nominal year (45 E19 pot)

2007 no shielding

2008++lt 10 Gry

F 106

~10 Gry2007 no shielding

F 104

lt 106 hcm2yr2008++

~1010 hcm2yr

BENE08 2 Dec 2008E Gschwendtner ABATB

34

3 prong vertex in the bottom layer of the emulsion

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

35

kink=0204 rad

Event GalleryOPERA Results

Other particles with very short life-time Charmed mesons produced by interactions Can contribute to background in case the muon from charm decay is missed

21 expected charm events during 2007-2008Seen 2 charm-like topologies

D+

neutrals

- (undetected)

h+

  • CNGS Operation Results 2008
  • Slide 2
  • CERN Neutrinos to Gran Sasso
  • CNGS Timeline
  • CNGS Conventional Neutrino Beams
  • CNGS Proton Beam Parameters
  • CNGS Target
  • CNGS Horn and Reflector
  • Muon Monitors
  • Radiation Issues - 2007 CNGS Run
  • Modifications in Shutdown 200708 due to Radiation Issues
  • Photo Gallery- Motorized Shielding Plugs
  • Junction to Target Chamber
  • Slide 14
  • CNGS Polarity Puzzle
  • Slide 16
  • CNGS 2008 Performance and Results
  • CNGS Run 2008
  • Supercycle
  • CNGS Run 2008 18 June- 03 Nov 2008
  • SPS Efficiency for CNGS
  • Beam Intensity
  • Beam Stability
  • Muon Monitors Measurements vs Simulations
  • OPERA
  • The OPERA Detector
  • OPERA Results 2008
  • Slide 28
  • Outlook 2009
  • Multi-Turn-Extraction
  • Summary
  • Slide 32
  • CNGS Radiation Simulations
  • Event Gallery
  • Slide 35
Page 25: CNGS Operation Results 2008 Edda Gschwendtner AB/ATB on behalf of the CNGS team.

BENE08 2 Dec 2008E Gschwendtner ABATB

25

OPERA

BENE08 2 Dec 2008E Gschwendtner ABATB

26

bull Total target massndash 12 kton146621 emulsion-lead bricks

bull 2 super modules ndash Spectrometer 22 RPC planes in

magnetic field (15T) 6 Drift tube planes

ndash Target 27 lead emulsion brick walls alternated with scintillator planes

The OPERA DetectorOPERA Detector

BENE08 2 Dec 2008E Gschwendtner ABATB

27

OPERA Results 2008bull 10100 on-time eventsbull 1700 candidate interactions in bricks

Handling of 100 bricksweek

Up to 65 CSd scannedweek

CS delivered to the Scanning Stations

CS scanned

CS with a positive results

OPERA Results

Courtesy of D Autiero

BENE08 2 Dec 2008E Gschwendtner ABATB

28

Backward going charged particle(interesting as will allow to benchmark the MC simulation of back-scattering)

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

29

Outlook 2009bull 2009 Schedule CNGS physics start on 7 May 2009 total 175 days

Outlook

Protons on target in 2009 ~27middot1019 to ~5middot1019 potyr

Depends mainly on bull CNGS duty cyclebull beam intensityextraction

BENE08 2 Dec 2008E Gschwendtner ABATB

30

Multi-Turn-Extractionbull Novel extraction scheme from PS to SPS

ndash Beam is separated in the transverse phase space usingbull Nonlinear magnetic elements (sextupoles and octupoles) to create stable islandsbull Slow (adiabatic) tune-variation to cross an appropriate resonance

ndash Beneficial effectsbull No mechanical device to slice the beam losses are reducedbull The phase space matching is improved bull The beamlets have the same emittance and optical parameters

Five beamlets separated by 1 PS turn

Result of the first extraction test in the PS extraction line (TT2) with one bunch

Courtesy MTE project - M Giovannozzi et al

Evolution of the horizontal beam distribution during the splitting

MTE extracted beam has been provided to the SPS for the last night of CNGS run2009 Start with classical extraction parallel prepare MTE provide first SFTPRO then CNGS

Outlook

BENE08 2 Dec 2008E Gschwendtner ABATB

31

Summarybull Start-up issues of CNGS have been

overcomendash a lot of work

bull CNGS 2008 run was very successfulndash 178 1019 pot ndash 1700 candidate events in OPERAndash exploring limits of CNGS facility

bull 2009 ndash full year of high intensity operationndash First tau neutrino events

BENE08 2 Dec 2008E Gschwendtner ABATB

32

Thank You to all the colleagues for their effort to make CNGS a

success this year

AB Department TS Department SCRPCNGS Secondary Beam Working Group MTE Project Team

BENE08 2 Dec 2008E Gschwendtner ABATB

33

CNGS Radiation SimulationsHigh-E (gt20 MeV) hadron fluence for a nominal year (45 E19 pot)

A

Fe

rra

ri

L

Sa

rch

iap

on

e e

t a

l F

LU

KA

sim

ula

tio

ns

20

08

CNGS Facility ndash Startup Issues

Dose in Gray for a nominal year (45 E19 pot)

2007 no shielding

2008++lt 10 Gry

F 106

~10 Gry2007 no shielding

F 104

lt 106 hcm2yr2008++

~1010 hcm2yr

BENE08 2 Dec 2008E Gschwendtner ABATB

34

3 prong vertex in the bottom layer of the emulsion

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

35

kink=0204 rad

Event GalleryOPERA Results

Other particles with very short life-time Charmed mesons produced by interactions Can contribute to background in case the muon from charm decay is missed

21 expected charm events during 2007-2008Seen 2 charm-like topologies

D+

neutrals

- (undetected)

h+

  • CNGS Operation Results 2008
  • Slide 2
  • CERN Neutrinos to Gran Sasso
  • CNGS Timeline
  • CNGS Conventional Neutrino Beams
  • CNGS Proton Beam Parameters
  • CNGS Target
  • CNGS Horn and Reflector
  • Muon Monitors
  • Radiation Issues - 2007 CNGS Run
  • Modifications in Shutdown 200708 due to Radiation Issues
  • Photo Gallery- Motorized Shielding Plugs
  • Junction to Target Chamber
  • Slide 14
  • CNGS Polarity Puzzle
  • Slide 16
  • CNGS 2008 Performance and Results
  • CNGS Run 2008
  • Supercycle
  • CNGS Run 2008 18 June- 03 Nov 2008
  • SPS Efficiency for CNGS
  • Beam Intensity
  • Beam Stability
  • Muon Monitors Measurements vs Simulations
  • OPERA
  • The OPERA Detector
  • OPERA Results 2008
  • Slide 28
  • Outlook 2009
  • Multi-Turn-Extraction
  • Summary
  • Slide 32
  • CNGS Radiation Simulations
  • Event Gallery
  • Slide 35
Page 26: CNGS Operation Results 2008 Edda Gschwendtner AB/ATB on behalf of the CNGS team.

BENE08 2 Dec 2008E Gschwendtner ABATB

26

bull Total target massndash 12 kton146621 emulsion-lead bricks

bull 2 super modules ndash Spectrometer 22 RPC planes in

magnetic field (15T) 6 Drift tube planes

ndash Target 27 lead emulsion brick walls alternated with scintillator planes

The OPERA DetectorOPERA Detector

BENE08 2 Dec 2008E Gschwendtner ABATB

27

OPERA Results 2008bull 10100 on-time eventsbull 1700 candidate interactions in bricks

Handling of 100 bricksweek

Up to 65 CSd scannedweek

CS delivered to the Scanning Stations

CS scanned

CS with a positive results

OPERA Results

Courtesy of D Autiero

BENE08 2 Dec 2008E Gschwendtner ABATB

28

Backward going charged particle(interesting as will allow to benchmark the MC simulation of back-scattering)

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

29

Outlook 2009bull 2009 Schedule CNGS physics start on 7 May 2009 total 175 days

Outlook

Protons on target in 2009 ~27middot1019 to ~5middot1019 potyr

Depends mainly on bull CNGS duty cyclebull beam intensityextraction

BENE08 2 Dec 2008E Gschwendtner ABATB

30

Multi-Turn-Extractionbull Novel extraction scheme from PS to SPS

ndash Beam is separated in the transverse phase space usingbull Nonlinear magnetic elements (sextupoles and octupoles) to create stable islandsbull Slow (adiabatic) tune-variation to cross an appropriate resonance

ndash Beneficial effectsbull No mechanical device to slice the beam losses are reducedbull The phase space matching is improved bull The beamlets have the same emittance and optical parameters

Five beamlets separated by 1 PS turn

Result of the first extraction test in the PS extraction line (TT2) with one bunch

Courtesy MTE project - M Giovannozzi et al

Evolution of the horizontal beam distribution during the splitting

MTE extracted beam has been provided to the SPS for the last night of CNGS run2009 Start with classical extraction parallel prepare MTE provide first SFTPRO then CNGS

Outlook

BENE08 2 Dec 2008E Gschwendtner ABATB

31

Summarybull Start-up issues of CNGS have been

overcomendash a lot of work

bull CNGS 2008 run was very successfulndash 178 1019 pot ndash 1700 candidate events in OPERAndash exploring limits of CNGS facility

bull 2009 ndash full year of high intensity operationndash First tau neutrino events

BENE08 2 Dec 2008E Gschwendtner ABATB

32

Thank You to all the colleagues for their effort to make CNGS a

success this year

AB Department TS Department SCRPCNGS Secondary Beam Working Group MTE Project Team

BENE08 2 Dec 2008E Gschwendtner ABATB

33

CNGS Radiation SimulationsHigh-E (gt20 MeV) hadron fluence for a nominal year (45 E19 pot)

A

Fe

rra

ri

L

Sa

rch

iap

on

e e

t a

l F

LU

KA

sim

ula

tio

ns

20

08

CNGS Facility ndash Startup Issues

Dose in Gray for a nominal year (45 E19 pot)

2007 no shielding

2008++lt 10 Gry

F 106

~10 Gry2007 no shielding

F 104

lt 106 hcm2yr2008++

~1010 hcm2yr

BENE08 2 Dec 2008E Gschwendtner ABATB

34

3 prong vertex in the bottom layer of the emulsion

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

35

kink=0204 rad

Event GalleryOPERA Results

Other particles with very short life-time Charmed mesons produced by interactions Can contribute to background in case the muon from charm decay is missed

21 expected charm events during 2007-2008Seen 2 charm-like topologies

D+

neutrals

- (undetected)

h+

  • CNGS Operation Results 2008
  • Slide 2
  • CERN Neutrinos to Gran Sasso
  • CNGS Timeline
  • CNGS Conventional Neutrino Beams
  • CNGS Proton Beam Parameters
  • CNGS Target
  • CNGS Horn and Reflector
  • Muon Monitors
  • Radiation Issues - 2007 CNGS Run
  • Modifications in Shutdown 200708 due to Radiation Issues
  • Photo Gallery- Motorized Shielding Plugs
  • Junction to Target Chamber
  • Slide 14
  • CNGS Polarity Puzzle
  • Slide 16
  • CNGS 2008 Performance and Results
  • CNGS Run 2008
  • Supercycle
  • CNGS Run 2008 18 June- 03 Nov 2008
  • SPS Efficiency for CNGS
  • Beam Intensity
  • Beam Stability
  • Muon Monitors Measurements vs Simulations
  • OPERA
  • The OPERA Detector
  • OPERA Results 2008
  • Slide 28
  • Outlook 2009
  • Multi-Turn-Extraction
  • Summary
  • Slide 32
  • CNGS Radiation Simulations
  • Event Gallery
  • Slide 35
Page 27: CNGS Operation Results 2008 Edda Gschwendtner AB/ATB on behalf of the CNGS team.

BENE08 2 Dec 2008E Gschwendtner ABATB

27

OPERA Results 2008bull 10100 on-time eventsbull 1700 candidate interactions in bricks

Handling of 100 bricksweek

Up to 65 CSd scannedweek

CS delivered to the Scanning Stations

CS scanned

CS with a positive results

OPERA Results

Courtesy of D Autiero

BENE08 2 Dec 2008E Gschwendtner ABATB

28

Backward going charged particle(interesting as will allow to benchmark the MC simulation of back-scattering)

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

29

Outlook 2009bull 2009 Schedule CNGS physics start on 7 May 2009 total 175 days

Outlook

Protons on target in 2009 ~27middot1019 to ~5middot1019 potyr

Depends mainly on bull CNGS duty cyclebull beam intensityextraction

BENE08 2 Dec 2008E Gschwendtner ABATB

30

Multi-Turn-Extractionbull Novel extraction scheme from PS to SPS

ndash Beam is separated in the transverse phase space usingbull Nonlinear magnetic elements (sextupoles and octupoles) to create stable islandsbull Slow (adiabatic) tune-variation to cross an appropriate resonance

ndash Beneficial effectsbull No mechanical device to slice the beam losses are reducedbull The phase space matching is improved bull The beamlets have the same emittance and optical parameters

Five beamlets separated by 1 PS turn

Result of the first extraction test in the PS extraction line (TT2) with one bunch

Courtesy MTE project - M Giovannozzi et al

Evolution of the horizontal beam distribution during the splitting

MTE extracted beam has been provided to the SPS for the last night of CNGS run2009 Start with classical extraction parallel prepare MTE provide first SFTPRO then CNGS

Outlook

BENE08 2 Dec 2008E Gschwendtner ABATB

31

Summarybull Start-up issues of CNGS have been

overcomendash a lot of work

bull CNGS 2008 run was very successfulndash 178 1019 pot ndash 1700 candidate events in OPERAndash exploring limits of CNGS facility

bull 2009 ndash full year of high intensity operationndash First tau neutrino events

BENE08 2 Dec 2008E Gschwendtner ABATB

32

Thank You to all the colleagues for their effort to make CNGS a

success this year

AB Department TS Department SCRPCNGS Secondary Beam Working Group MTE Project Team

BENE08 2 Dec 2008E Gschwendtner ABATB

33

CNGS Radiation SimulationsHigh-E (gt20 MeV) hadron fluence for a nominal year (45 E19 pot)

A

Fe

rra

ri

L

Sa

rch

iap

on

e e

t a

l F

LU

KA

sim

ula

tio

ns

20

08

CNGS Facility ndash Startup Issues

Dose in Gray for a nominal year (45 E19 pot)

2007 no shielding

2008++lt 10 Gry

F 106

~10 Gry2007 no shielding

F 104

lt 106 hcm2yr2008++

~1010 hcm2yr

BENE08 2 Dec 2008E Gschwendtner ABATB

34

3 prong vertex in the bottom layer of the emulsion

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

35

kink=0204 rad

Event GalleryOPERA Results

Other particles with very short life-time Charmed mesons produced by interactions Can contribute to background in case the muon from charm decay is missed

21 expected charm events during 2007-2008Seen 2 charm-like topologies

D+

neutrals

- (undetected)

h+

  • CNGS Operation Results 2008
  • Slide 2
  • CERN Neutrinos to Gran Sasso
  • CNGS Timeline
  • CNGS Conventional Neutrino Beams
  • CNGS Proton Beam Parameters
  • CNGS Target
  • CNGS Horn and Reflector
  • Muon Monitors
  • Radiation Issues - 2007 CNGS Run
  • Modifications in Shutdown 200708 due to Radiation Issues
  • Photo Gallery- Motorized Shielding Plugs
  • Junction to Target Chamber
  • Slide 14
  • CNGS Polarity Puzzle
  • Slide 16
  • CNGS 2008 Performance and Results
  • CNGS Run 2008
  • Supercycle
  • CNGS Run 2008 18 June- 03 Nov 2008
  • SPS Efficiency for CNGS
  • Beam Intensity
  • Beam Stability
  • Muon Monitors Measurements vs Simulations
  • OPERA
  • The OPERA Detector
  • OPERA Results 2008
  • Slide 28
  • Outlook 2009
  • Multi-Turn-Extraction
  • Summary
  • Slide 32
  • CNGS Radiation Simulations
  • Event Gallery
  • Slide 35
Page 28: CNGS Operation Results 2008 Edda Gschwendtner AB/ATB on behalf of the CNGS team.

BENE08 2 Dec 2008E Gschwendtner ABATB

28

Backward going charged particle(interesting as will allow to benchmark the MC simulation of back-scattering)

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

29

Outlook 2009bull 2009 Schedule CNGS physics start on 7 May 2009 total 175 days

Outlook

Protons on target in 2009 ~27middot1019 to ~5middot1019 potyr

Depends mainly on bull CNGS duty cyclebull beam intensityextraction

BENE08 2 Dec 2008E Gschwendtner ABATB

30

Multi-Turn-Extractionbull Novel extraction scheme from PS to SPS

ndash Beam is separated in the transverse phase space usingbull Nonlinear magnetic elements (sextupoles and octupoles) to create stable islandsbull Slow (adiabatic) tune-variation to cross an appropriate resonance

ndash Beneficial effectsbull No mechanical device to slice the beam losses are reducedbull The phase space matching is improved bull The beamlets have the same emittance and optical parameters

Five beamlets separated by 1 PS turn

Result of the first extraction test in the PS extraction line (TT2) with one bunch

Courtesy MTE project - M Giovannozzi et al

Evolution of the horizontal beam distribution during the splitting

MTE extracted beam has been provided to the SPS for the last night of CNGS run2009 Start with classical extraction parallel prepare MTE provide first SFTPRO then CNGS

Outlook

BENE08 2 Dec 2008E Gschwendtner ABATB

31

Summarybull Start-up issues of CNGS have been

overcomendash a lot of work

bull CNGS 2008 run was very successfulndash 178 1019 pot ndash 1700 candidate events in OPERAndash exploring limits of CNGS facility

bull 2009 ndash full year of high intensity operationndash First tau neutrino events

BENE08 2 Dec 2008E Gschwendtner ABATB

32

Thank You to all the colleagues for their effort to make CNGS a

success this year

AB Department TS Department SCRPCNGS Secondary Beam Working Group MTE Project Team

BENE08 2 Dec 2008E Gschwendtner ABATB

33

CNGS Radiation SimulationsHigh-E (gt20 MeV) hadron fluence for a nominal year (45 E19 pot)

A

Fe

rra

ri

L

Sa

rch

iap

on

e e

t a

l F

LU

KA

sim

ula

tio

ns

20

08

CNGS Facility ndash Startup Issues

Dose in Gray for a nominal year (45 E19 pot)

2007 no shielding

2008++lt 10 Gry

F 106

~10 Gry2007 no shielding

F 104

lt 106 hcm2yr2008++

~1010 hcm2yr

BENE08 2 Dec 2008E Gschwendtner ABATB

34

3 prong vertex in the bottom layer of the emulsion

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

35

kink=0204 rad

Event GalleryOPERA Results

Other particles with very short life-time Charmed mesons produced by interactions Can contribute to background in case the muon from charm decay is missed

21 expected charm events during 2007-2008Seen 2 charm-like topologies

D+

neutrals

- (undetected)

h+

  • CNGS Operation Results 2008
  • Slide 2
  • CERN Neutrinos to Gran Sasso
  • CNGS Timeline
  • CNGS Conventional Neutrino Beams
  • CNGS Proton Beam Parameters
  • CNGS Target
  • CNGS Horn and Reflector
  • Muon Monitors
  • Radiation Issues - 2007 CNGS Run
  • Modifications in Shutdown 200708 due to Radiation Issues
  • Photo Gallery- Motorized Shielding Plugs
  • Junction to Target Chamber
  • Slide 14
  • CNGS Polarity Puzzle
  • Slide 16
  • CNGS 2008 Performance and Results
  • CNGS Run 2008
  • Supercycle
  • CNGS Run 2008 18 June- 03 Nov 2008
  • SPS Efficiency for CNGS
  • Beam Intensity
  • Beam Stability
  • Muon Monitors Measurements vs Simulations
  • OPERA
  • The OPERA Detector
  • OPERA Results 2008
  • Slide 28
  • Outlook 2009
  • Multi-Turn-Extraction
  • Summary
  • Slide 32
  • CNGS Radiation Simulations
  • Event Gallery
  • Slide 35
Page 29: CNGS Operation Results 2008 Edda Gschwendtner AB/ATB on behalf of the CNGS team.

BENE08 2 Dec 2008E Gschwendtner ABATB

29

Outlook 2009bull 2009 Schedule CNGS physics start on 7 May 2009 total 175 days

Outlook

Protons on target in 2009 ~27middot1019 to ~5middot1019 potyr

Depends mainly on bull CNGS duty cyclebull beam intensityextraction

BENE08 2 Dec 2008E Gschwendtner ABATB

30

Multi-Turn-Extractionbull Novel extraction scheme from PS to SPS

ndash Beam is separated in the transverse phase space usingbull Nonlinear magnetic elements (sextupoles and octupoles) to create stable islandsbull Slow (adiabatic) tune-variation to cross an appropriate resonance

ndash Beneficial effectsbull No mechanical device to slice the beam losses are reducedbull The phase space matching is improved bull The beamlets have the same emittance and optical parameters

Five beamlets separated by 1 PS turn

Result of the first extraction test in the PS extraction line (TT2) with one bunch

Courtesy MTE project - M Giovannozzi et al

Evolution of the horizontal beam distribution during the splitting

MTE extracted beam has been provided to the SPS for the last night of CNGS run2009 Start with classical extraction parallel prepare MTE provide first SFTPRO then CNGS

Outlook

BENE08 2 Dec 2008E Gschwendtner ABATB

31

Summarybull Start-up issues of CNGS have been

overcomendash a lot of work

bull CNGS 2008 run was very successfulndash 178 1019 pot ndash 1700 candidate events in OPERAndash exploring limits of CNGS facility

bull 2009 ndash full year of high intensity operationndash First tau neutrino events

BENE08 2 Dec 2008E Gschwendtner ABATB

32

Thank You to all the colleagues for their effort to make CNGS a

success this year

AB Department TS Department SCRPCNGS Secondary Beam Working Group MTE Project Team

BENE08 2 Dec 2008E Gschwendtner ABATB

33

CNGS Radiation SimulationsHigh-E (gt20 MeV) hadron fluence for a nominal year (45 E19 pot)

A

Fe

rra

ri

L

Sa

rch

iap

on

e e

t a

l F

LU

KA

sim

ula

tio

ns

20

08

CNGS Facility ndash Startup Issues

Dose in Gray for a nominal year (45 E19 pot)

2007 no shielding

2008++lt 10 Gry

F 106

~10 Gry2007 no shielding

F 104

lt 106 hcm2yr2008++

~1010 hcm2yr

BENE08 2 Dec 2008E Gschwendtner ABATB

34

3 prong vertex in the bottom layer of the emulsion

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

35

kink=0204 rad

Event GalleryOPERA Results

Other particles with very short life-time Charmed mesons produced by interactions Can contribute to background in case the muon from charm decay is missed

21 expected charm events during 2007-2008Seen 2 charm-like topologies

D+

neutrals

- (undetected)

h+

  • CNGS Operation Results 2008
  • Slide 2
  • CERN Neutrinos to Gran Sasso
  • CNGS Timeline
  • CNGS Conventional Neutrino Beams
  • CNGS Proton Beam Parameters
  • CNGS Target
  • CNGS Horn and Reflector
  • Muon Monitors
  • Radiation Issues - 2007 CNGS Run
  • Modifications in Shutdown 200708 due to Radiation Issues
  • Photo Gallery- Motorized Shielding Plugs
  • Junction to Target Chamber
  • Slide 14
  • CNGS Polarity Puzzle
  • Slide 16
  • CNGS 2008 Performance and Results
  • CNGS Run 2008
  • Supercycle
  • CNGS Run 2008 18 June- 03 Nov 2008
  • SPS Efficiency for CNGS
  • Beam Intensity
  • Beam Stability
  • Muon Monitors Measurements vs Simulations
  • OPERA
  • The OPERA Detector
  • OPERA Results 2008
  • Slide 28
  • Outlook 2009
  • Multi-Turn-Extraction
  • Summary
  • Slide 32
  • CNGS Radiation Simulations
  • Event Gallery
  • Slide 35
Page 30: CNGS Operation Results 2008 Edda Gschwendtner AB/ATB on behalf of the CNGS team.

BENE08 2 Dec 2008E Gschwendtner ABATB

30

Multi-Turn-Extractionbull Novel extraction scheme from PS to SPS

ndash Beam is separated in the transverse phase space usingbull Nonlinear magnetic elements (sextupoles and octupoles) to create stable islandsbull Slow (adiabatic) tune-variation to cross an appropriate resonance

ndash Beneficial effectsbull No mechanical device to slice the beam losses are reducedbull The phase space matching is improved bull The beamlets have the same emittance and optical parameters

Five beamlets separated by 1 PS turn

Result of the first extraction test in the PS extraction line (TT2) with one bunch

Courtesy MTE project - M Giovannozzi et al

Evolution of the horizontal beam distribution during the splitting

MTE extracted beam has been provided to the SPS for the last night of CNGS run2009 Start with classical extraction parallel prepare MTE provide first SFTPRO then CNGS

Outlook

BENE08 2 Dec 2008E Gschwendtner ABATB

31

Summarybull Start-up issues of CNGS have been

overcomendash a lot of work

bull CNGS 2008 run was very successfulndash 178 1019 pot ndash 1700 candidate events in OPERAndash exploring limits of CNGS facility

bull 2009 ndash full year of high intensity operationndash First tau neutrino events

BENE08 2 Dec 2008E Gschwendtner ABATB

32

Thank You to all the colleagues for their effort to make CNGS a

success this year

AB Department TS Department SCRPCNGS Secondary Beam Working Group MTE Project Team

BENE08 2 Dec 2008E Gschwendtner ABATB

33

CNGS Radiation SimulationsHigh-E (gt20 MeV) hadron fluence for a nominal year (45 E19 pot)

A

Fe

rra

ri

L

Sa

rch

iap

on

e e

t a

l F

LU

KA

sim

ula

tio

ns

20

08

CNGS Facility ndash Startup Issues

Dose in Gray for a nominal year (45 E19 pot)

2007 no shielding

2008++lt 10 Gry

F 106

~10 Gry2007 no shielding

F 104

lt 106 hcm2yr2008++

~1010 hcm2yr

BENE08 2 Dec 2008E Gschwendtner ABATB

34

3 prong vertex in the bottom layer of the emulsion

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

35

kink=0204 rad

Event GalleryOPERA Results

Other particles with very short life-time Charmed mesons produced by interactions Can contribute to background in case the muon from charm decay is missed

21 expected charm events during 2007-2008Seen 2 charm-like topologies

D+

neutrals

- (undetected)

h+

  • CNGS Operation Results 2008
  • Slide 2
  • CERN Neutrinos to Gran Sasso
  • CNGS Timeline
  • CNGS Conventional Neutrino Beams
  • CNGS Proton Beam Parameters
  • CNGS Target
  • CNGS Horn and Reflector
  • Muon Monitors
  • Radiation Issues - 2007 CNGS Run
  • Modifications in Shutdown 200708 due to Radiation Issues
  • Photo Gallery- Motorized Shielding Plugs
  • Junction to Target Chamber
  • Slide 14
  • CNGS Polarity Puzzle
  • Slide 16
  • CNGS 2008 Performance and Results
  • CNGS Run 2008
  • Supercycle
  • CNGS Run 2008 18 June- 03 Nov 2008
  • SPS Efficiency for CNGS
  • Beam Intensity
  • Beam Stability
  • Muon Monitors Measurements vs Simulations
  • OPERA
  • The OPERA Detector
  • OPERA Results 2008
  • Slide 28
  • Outlook 2009
  • Multi-Turn-Extraction
  • Summary
  • Slide 32
  • CNGS Radiation Simulations
  • Event Gallery
  • Slide 35
Page 31: CNGS Operation Results 2008 Edda Gschwendtner AB/ATB on behalf of the CNGS team.

BENE08 2 Dec 2008E Gschwendtner ABATB

31

Summarybull Start-up issues of CNGS have been

overcomendash a lot of work

bull CNGS 2008 run was very successfulndash 178 1019 pot ndash 1700 candidate events in OPERAndash exploring limits of CNGS facility

bull 2009 ndash full year of high intensity operationndash First tau neutrino events

BENE08 2 Dec 2008E Gschwendtner ABATB

32

Thank You to all the colleagues for their effort to make CNGS a

success this year

AB Department TS Department SCRPCNGS Secondary Beam Working Group MTE Project Team

BENE08 2 Dec 2008E Gschwendtner ABATB

33

CNGS Radiation SimulationsHigh-E (gt20 MeV) hadron fluence for a nominal year (45 E19 pot)

A

Fe

rra

ri

L

Sa

rch

iap

on

e e

t a

l F

LU

KA

sim

ula

tio

ns

20

08

CNGS Facility ndash Startup Issues

Dose in Gray for a nominal year (45 E19 pot)

2007 no shielding

2008++lt 10 Gry

F 106

~10 Gry2007 no shielding

F 104

lt 106 hcm2yr2008++

~1010 hcm2yr

BENE08 2 Dec 2008E Gschwendtner ABATB

34

3 prong vertex in the bottom layer of the emulsion

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

35

kink=0204 rad

Event GalleryOPERA Results

Other particles with very short life-time Charmed mesons produced by interactions Can contribute to background in case the muon from charm decay is missed

21 expected charm events during 2007-2008Seen 2 charm-like topologies

D+

neutrals

- (undetected)

h+

  • CNGS Operation Results 2008
  • Slide 2
  • CERN Neutrinos to Gran Sasso
  • CNGS Timeline
  • CNGS Conventional Neutrino Beams
  • CNGS Proton Beam Parameters
  • CNGS Target
  • CNGS Horn and Reflector
  • Muon Monitors
  • Radiation Issues - 2007 CNGS Run
  • Modifications in Shutdown 200708 due to Radiation Issues
  • Photo Gallery- Motorized Shielding Plugs
  • Junction to Target Chamber
  • Slide 14
  • CNGS Polarity Puzzle
  • Slide 16
  • CNGS 2008 Performance and Results
  • CNGS Run 2008
  • Supercycle
  • CNGS Run 2008 18 June- 03 Nov 2008
  • SPS Efficiency for CNGS
  • Beam Intensity
  • Beam Stability
  • Muon Monitors Measurements vs Simulations
  • OPERA
  • The OPERA Detector
  • OPERA Results 2008
  • Slide 28
  • Outlook 2009
  • Multi-Turn-Extraction
  • Summary
  • Slide 32
  • CNGS Radiation Simulations
  • Event Gallery
  • Slide 35
Page 32: CNGS Operation Results 2008 Edda Gschwendtner AB/ATB on behalf of the CNGS team.

BENE08 2 Dec 2008E Gschwendtner ABATB

32

Thank You to all the colleagues for their effort to make CNGS a

success this year

AB Department TS Department SCRPCNGS Secondary Beam Working Group MTE Project Team

BENE08 2 Dec 2008E Gschwendtner ABATB

33

CNGS Radiation SimulationsHigh-E (gt20 MeV) hadron fluence for a nominal year (45 E19 pot)

A

Fe

rra

ri

L

Sa

rch

iap

on

e e

t a

l F

LU

KA

sim

ula

tio

ns

20

08

CNGS Facility ndash Startup Issues

Dose in Gray for a nominal year (45 E19 pot)

2007 no shielding

2008++lt 10 Gry

F 106

~10 Gry2007 no shielding

F 104

lt 106 hcm2yr2008++

~1010 hcm2yr

BENE08 2 Dec 2008E Gschwendtner ABATB

34

3 prong vertex in the bottom layer of the emulsion

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

35

kink=0204 rad

Event GalleryOPERA Results

Other particles with very short life-time Charmed mesons produced by interactions Can contribute to background in case the muon from charm decay is missed

21 expected charm events during 2007-2008Seen 2 charm-like topologies

D+

neutrals

- (undetected)

h+

  • CNGS Operation Results 2008
  • Slide 2
  • CERN Neutrinos to Gran Sasso
  • CNGS Timeline
  • CNGS Conventional Neutrino Beams
  • CNGS Proton Beam Parameters
  • CNGS Target
  • CNGS Horn and Reflector
  • Muon Monitors
  • Radiation Issues - 2007 CNGS Run
  • Modifications in Shutdown 200708 due to Radiation Issues
  • Photo Gallery- Motorized Shielding Plugs
  • Junction to Target Chamber
  • Slide 14
  • CNGS Polarity Puzzle
  • Slide 16
  • CNGS 2008 Performance and Results
  • CNGS Run 2008
  • Supercycle
  • CNGS Run 2008 18 June- 03 Nov 2008
  • SPS Efficiency for CNGS
  • Beam Intensity
  • Beam Stability
  • Muon Monitors Measurements vs Simulations
  • OPERA
  • The OPERA Detector
  • OPERA Results 2008
  • Slide 28
  • Outlook 2009
  • Multi-Turn-Extraction
  • Summary
  • Slide 32
  • CNGS Radiation Simulations
  • Event Gallery
  • Slide 35
Page 33: CNGS Operation Results 2008 Edda Gschwendtner AB/ATB on behalf of the CNGS team.

BENE08 2 Dec 2008E Gschwendtner ABATB

33

CNGS Radiation SimulationsHigh-E (gt20 MeV) hadron fluence for a nominal year (45 E19 pot)

A

Fe

rra

ri

L

Sa

rch

iap

on

e e

t a

l F

LU

KA

sim

ula

tio

ns

20

08

CNGS Facility ndash Startup Issues

Dose in Gray for a nominal year (45 E19 pot)

2007 no shielding

2008++lt 10 Gry

F 106

~10 Gry2007 no shielding

F 104

lt 106 hcm2yr2008++

~1010 hcm2yr

BENE08 2 Dec 2008E Gschwendtner ABATB

34

3 prong vertex in the bottom layer of the emulsion

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

35

kink=0204 rad

Event GalleryOPERA Results

Other particles with very short life-time Charmed mesons produced by interactions Can contribute to background in case the muon from charm decay is missed

21 expected charm events during 2007-2008Seen 2 charm-like topologies

D+

neutrals

- (undetected)

h+

  • CNGS Operation Results 2008
  • Slide 2
  • CERN Neutrinos to Gran Sasso
  • CNGS Timeline
  • CNGS Conventional Neutrino Beams
  • CNGS Proton Beam Parameters
  • CNGS Target
  • CNGS Horn and Reflector
  • Muon Monitors
  • Radiation Issues - 2007 CNGS Run
  • Modifications in Shutdown 200708 due to Radiation Issues
  • Photo Gallery- Motorized Shielding Plugs
  • Junction to Target Chamber
  • Slide 14
  • CNGS Polarity Puzzle
  • Slide 16
  • CNGS 2008 Performance and Results
  • CNGS Run 2008
  • Supercycle
  • CNGS Run 2008 18 June- 03 Nov 2008
  • SPS Efficiency for CNGS
  • Beam Intensity
  • Beam Stability
  • Muon Monitors Measurements vs Simulations
  • OPERA
  • The OPERA Detector
  • OPERA Results 2008
  • Slide 28
  • Outlook 2009
  • Multi-Turn-Extraction
  • Summary
  • Slide 32
  • CNGS Radiation Simulations
  • Event Gallery
  • Slide 35
Page 34: CNGS Operation Results 2008 Edda Gschwendtner AB/ATB on behalf of the CNGS team.

BENE08 2 Dec 2008E Gschwendtner ABATB

34

3 prong vertex in the bottom layer of the emulsion

Event GalleryOPERA Results

BENE08 2 Dec 2008E Gschwendtner ABATB

35

kink=0204 rad

Event GalleryOPERA Results

Other particles with very short life-time Charmed mesons produced by interactions Can contribute to background in case the muon from charm decay is missed

21 expected charm events during 2007-2008Seen 2 charm-like topologies

D+

neutrals

- (undetected)

h+

  • CNGS Operation Results 2008
  • Slide 2
  • CERN Neutrinos to Gran Sasso
  • CNGS Timeline
  • CNGS Conventional Neutrino Beams
  • CNGS Proton Beam Parameters
  • CNGS Target
  • CNGS Horn and Reflector
  • Muon Monitors
  • Radiation Issues - 2007 CNGS Run
  • Modifications in Shutdown 200708 due to Radiation Issues
  • Photo Gallery- Motorized Shielding Plugs
  • Junction to Target Chamber
  • Slide 14
  • CNGS Polarity Puzzle
  • Slide 16
  • CNGS 2008 Performance and Results
  • CNGS Run 2008
  • Supercycle
  • CNGS Run 2008 18 June- 03 Nov 2008
  • SPS Efficiency for CNGS
  • Beam Intensity
  • Beam Stability
  • Muon Monitors Measurements vs Simulations
  • OPERA
  • The OPERA Detector
  • OPERA Results 2008
  • Slide 28
  • Outlook 2009
  • Multi-Turn-Extraction
  • Summary
  • Slide 32
  • CNGS Radiation Simulations
  • Event Gallery
  • Slide 35
Page 35: CNGS Operation Results 2008 Edda Gschwendtner AB/ATB on behalf of the CNGS team.

BENE08 2 Dec 2008E Gschwendtner ABATB

35

kink=0204 rad

Event GalleryOPERA Results

Other particles with very short life-time Charmed mesons produced by interactions Can contribute to background in case the muon from charm decay is missed

21 expected charm events during 2007-2008Seen 2 charm-like topologies

D+

neutrals

- (undetected)

h+

  • CNGS Operation Results 2008
  • Slide 2
  • CERN Neutrinos to Gran Sasso
  • CNGS Timeline
  • CNGS Conventional Neutrino Beams
  • CNGS Proton Beam Parameters
  • CNGS Target
  • CNGS Horn and Reflector
  • Muon Monitors
  • Radiation Issues - 2007 CNGS Run
  • Modifications in Shutdown 200708 due to Radiation Issues
  • Photo Gallery- Motorized Shielding Plugs
  • Junction to Target Chamber
  • Slide 14
  • CNGS Polarity Puzzle
  • Slide 16
  • CNGS 2008 Performance and Results
  • CNGS Run 2008
  • Supercycle
  • CNGS Run 2008 18 June- 03 Nov 2008
  • SPS Efficiency for CNGS
  • Beam Intensity
  • Beam Stability
  • Muon Monitors Measurements vs Simulations
  • OPERA
  • The OPERA Detector
  • OPERA Results 2008
  • Slide 28
  • Outlook 2009
  • Multi-Turn-Extraction
  • Summary
  • Slide 32
  • CNGS Radiation Simulations
  • Event Gallery
  • Slide 35