RUN COORDINATOR’S REPORT Thomas Schörner-Sadenius (UHH) On behalf of the run coordinators’...
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Transcript of RUN COORDINATOR’S REPORT Thomas Schörner-Sadenius (UHH) On behalf of the run coordinators’...
RUN COORDINATOR’S REPORT
Thomas Schörner-Sadenius (UHH)
On behalf of the run coordinators’ team:
E. Gallo (left the team), J. Loizides, M. Turcato, R. Walsh
ZEUS Collaboration MeetingDESY, 27 February – 3 March 2006
DESY, 28.2.2006 TSS: Run Coordinator’s Report 2
OUTLINE
¶ HERA and ZEUS performance since last collaboration meeting (8-12 October 2005, Amsterdam)
¶ Status of components (not trigger)
¶ Conclusions and outlook
DESY, 28.2.2006 TSS: Run Coordinator’s Report 3
HERA PERFORMANCEGood data taking before shutdown
Runningperiods
- Running from 12 October to 14 November 2005- After shutdown first COSMIC on 14/2, first PHYSICS on 17/2.
Lumi2005
- Good luminosity up to 5*1031cm-2s-1, specific up to 2.2*1030cm-2s-1mA-2.- Satisfactory background situation.
Polari-sation ‘05
DESY, 28.2.2006 TSS: Run Coordinator’s Report 4
HERA STARTUP In february 2006
Currents - Initially problems with electron injection and with lumi creation at ZEUS.- But within one week up to 25 mA of electrons and 65 mA of protons.
Lumi - luminosity up to , peak up to 2.6*1031cm-2s-1.- specific lumi up to about 2.5*1030cm-2s-1mA-2.
Electrons currently limited to 25mA.Also low electron injection efficiency.
DESY, 28.2.2006 TSS: Run Coordinator’s Report 5
HERA STARTUP In february 2006
Bunches Currently running on120 bunches. Soon: 150 bunches with 80/35mA.
Background
15-20. February: electron BG Last 7 days: electrons coming down
Dominated by synchrotron radiation BG (bad electron vacuum upstream)?
DESY, 28.2.2006 TSS: Run Coordinator’s Report 6
HERA STARTUP Background continued
15-20. February: electron BG
Good fills lately.
DESY, 28.2.2006 TSS: Run Coordinator’s Report 7
ZEUS EFFICIENCY since startup: suffering from background; HERA hickups
DESY, 28.2.2006 TSS: Run Coordinator’s Report 8
ZEUS EFFICIENCY since startup: suffering from background; HERA hickups
DESY, 28.2.2006 TSS: Run Coordinator’s Report 9
OUTLINE
¶ HERA and ZEUS performance since last collaboration meeting (8-12 October 2005, Amsterdam)
¶ Status of components (not trigger)
¶ Conclusions and outlook
STT/Magnet-Repair
Based on Carstens temperature model, the STT/Magnet repair was done installed cooling pipes on frustrum surface
temperature modell w/o cooling
temperature modell with cooling
Copper pipes, 15 mm x 1 mm, flattened
72 meters of pipes installed
Three independent curcuits
S. Goers
DESY, 28.2.2006 TSS: Run Coordinator’s Report 11
Position of temperature sensors
Temperature monitoring and stability
( ) 6
( ) 0.5
T top bottom C
T front rear C
was 23 before
(from simulations)
C
temperature stable in time
Not
e th
e sc
ale!
constant temperature distribution around/along detector
Safety scheme:Depending on- temperature reading of sensors (above certain threshold)
- no cooling water flow (sensors still to be installed)
the STT Slow control will switch off the Low Voltage
(Temperatures also available via Netmex)
DESY, 28.2.2006 TSS: Run Coordinator’s Report 12
STT-Readout
Recabling of STT-Readout done:we now use four transputer links instead of one substantial increase of bandwidth
Furthermore (honestly: as before)
Cut on crate level can be applied to reduce/cut STT data volume waiting for data to learn about trigger rates and event sizes adjust cuts to optimize data-taking efficiency
Online-machines (zulu9 & zulu19) upgrades to Scientific Linux 3 recompiling of code ongoing
FTD: no changesDetector: fineReadout: fineData: fine
Dear Deputy:please don‘t forget to check FTD & STT histograms in hip
zulu19 recently broken (TSS)
DESY, 28.2.2006 TSS: Run Coordinator’s Report 13
CTD STATUS J. Loizides, J. Ferrando
1) HV status - stable, exchanged old UPS for new. We now have 2 spares (The system uses 5 UPSs)
2) GAS status - New Spare flow controller for Argon will be installed soon
3) Readout status - Considerable work on recovering dead channels, now we have approx 30, before we had 130. This is the best since 1996. We have 10 "new" spare TRAMs for the Transputer network taking our total to 12. These are critical components which normally fail at the rate of 1-2 per year, barring power failures.
4) Endplate temperature - New web page showing CTD temperature monitoring, updated hourly:
http://www-zeus.desy.de/~ctd/temps/
5) CTD SLT- the CTD SLT is off, no data is sent, replaced by GTT
6) All CTD DQM for 2006 e– data is ok.
DESY, 28.2.2006 TSS: Run Coordinator’s Report 14
The MVD is fine!
T. Haas
DESY, 28.2.2006 TSS: Run Coordinator’s Report 15
MVD Shutdown ActivitiesAim: Make MVD handling more stable and user-friendly!
Upgrade to ADC eproms (A. Polini, K. Tokushuku, A. Polini)
Bug identified in November → MVD holding busy when data rate is highFirst version tested in DecemberFinal version goes in this week
DAQ System upgrade (A. Polini, C. Youngman)25 nodes/2 TerabytesSUSE 8. 5 → Scientific LINUX 3 (SL3)
Consolidate DAQ network (C. Youngman)Gain more portsDESY compliant solution
LV (R. Carlin, T. Haas, C. Youngman, A. Zampieri)
Goal: More reliable operation of HELIXRaise LV from ±2.0 V to ±2.1 V
Cooling System (C. Youngman)SPICAN reset can now be done automatically when needed.
HV (C. Youngman + Praktikant)Scanned 50 – 90 V Depletion voltages.Results look promising but studies are still ongoing.
DQM (E. Lobodzinska, G. Watt)Complete port to SL3Major Cleanup
DESY, 28.2.2006 TSS: Run Coordinator’s Report 16
MVD Status
IV runs vs time
Leak
age
Cur
rent
(nA
)
Bad
Cha
nnel
s
Sig
nal (
AD
C)
Sig
nal (
AD
C)
Testpulse runs
Physics runs
Leakage current constant; radiation damage under control Number of bad channels constant(?)
Effect of raising LV (2V2.1V.
DESY, 28.2.2006 TSS: Run Coordinator’s Report 17
CAL Overall Status
Overall status is fine, but situation is not stable and problems will appear from time to time. Overall status is fine, but situation is not stable and problems will appear from time to time.
During the shutdown a lot of effort was put into the CAL in order to get it into the best possible shape before During the shutdown a lot of effort was put into the CAL in order to get it into the best possible shape before restartingrestarting
BCAL: improvement of HV, clock and serial lines, and PMT basesBCAL: improvement of HV, clock and serial lines, and PMT basesFCAL: after moving onto extensions recabled everything and got it into the same stable situation as before the FCAL: after moving onto extensions recabled everything and got it into the same stable situation as before the
shutdownshutdown
After shutdown CAL had no holes and only 200 bad channelsAfter shutdown CAL had no holes and only 200 bad channelsBut before the start of the data taking some old problems (mainly BCAL) which were thought to be fixed But before the start of the data taking some old problems (mainly BCAL) which were thought to be fixed
showed up againshowed up againWill work on it during access dayWill work on it during access day
CAL was not moved the last couple of month before the shutdownCAL was not moved the last couple of month before the shutdownProblems due to bad cables decreased, no significant deterioration of cells close to beam pipe Problems due to bad cables decreased, no significant deterioration of cells close to beam pipe
observed observed Will not move CAL until further notice, CAL group is monitoring HV development closelyWill not move CAL until further notice, CAL group is monitoring HV development closely
Ing
rid
-Mari
a G
reg
or,
DES
Y, C
AL
sum
mary
Ing
rid
-Mari
a G
reg
or,
DES
Y, C
AL
sum
mary
DESY, 28.2.2006 TSS: Run Coordinator’s Report 18
HES Shutdown Work• Pull F11 & F10 repair in Mark J hall One week de-cabeling with ≥ 3 people CAL extension rails Pull F9 & F15 & F16 repair in Mark J hall
• Re-install F11, F15, F16, F9 and finally F10 directly check modules afterwards
• CAL from extension rails Re-cabling one week with ≥ 3 people
First complete switch on
• Testing & repair & testing & repair & testing & repair & testing & repair & testing & repair ... • Exchange of lots of analog cards, ski control systems, digital cards and one power supply, the link switch for RHES and installation of further noise improvements
Switch off and wait for lumi data taking
Switched on, running fine now since one week
22nd of Dec well ahead of schedule !
3rd of Jan
17th of Jan
19th of Feb
Kerstin Borras, ZEUS CM Feb’06
DESY, 28.2.2006 TSS: Run Coordinator’s Report 19
Status of BMUON detector(Slide from R. Brugnera)
In general, BMUON is running smoothly, but A problem with a trigger card has produced
high trigger rates in the rear region, now almost solved. Problem with the readout of a inner barrel
chamber, we hope to fix during this access. Due to its oldness, the component has
necessity of continuous repair works in order to be in a safe state.
Software: mbtake.fpp available in runlib, updated up to
the end of 2005 BMUON efficiency simulation package up
to 2005 available both for ORANGE-users and EAZE-users Modifications to the BREMAT and
MBRECON packages almost completed and ready to become public
DESY, 28.2.2006 TSS: Run Coordinator’s Report 20
FMUON STATUS (provided by A. Polini)
A. Polini
DESY, 28.2.2006 TSS: Run Coordinator’s Report 21
Repairs and improvements during shutdown should have positive impact on data quality. The most important among them were: Replacement of bad photomultipliers in the counters which are close to the beam pipe Producing and implementing some electronics board to the bad discriminators channels Improving some HV cable extender connections Repair of low voltage outputs of HV divider Repair of spare HV divider Tuning of HV for several photomultipliers.
Currently the Veto Wall is in good shape, we have 4 not working channel located in outer part of the Veto Wall area.
The most urgent problems are: Extremely high rates produce by bad background condition. Not working SLT Level of the Veto Wall readout chain during physics runs (Under investigation). This is not affecting GFLT level so veto is sending correctly.
Detector side Tunnel side
VETO ACTIVITIES AND STATUSIn good overall shape.
J. Malka
DESY, 28.2.2006 TSS: Run Coordinator’s Report 22
BAC ACTIVITIES AND STATUS P. Plucinski
DESY, 28.2.2006 TSS: Run Coordinator’s Report 23
BAC ACTIVITIES AND STATUS ctd’
energy (GeV)
efficiency
+ trigger (TLTBAC)
+ offline (MUBAC)
DESY, 28.2.2006 TSS: Run Coordinator’s Report 24
MAGNETS STATUS (provided by D. Notz)
6. Floor, SPS for (de)grounding
The following signals are now visible in the control room:
¶ grounded magnets (“Geerdet”)
¶ Ungrounded magnets (“Enterdet”)
¶ PS off (All PS off)
¶ Release not available (“Freigabe fehlt”)
Control Room
DESY, 28.2.2006 TSS: Run Coordinator’s Report 25
MVD Radiation Monitor
Diode 14 is off as before (dead); All other diodes are working fine!Diodes 10 & 15 could be recovered after shutdown.
New readout board: Was sucessfully installed by E. Borsato and F. Dalcorso.A. Longhin is working on the software. Diodes 1,2,3,4 are used for testing it. (They have been masked.)
Next: Temperature corrections will be redone.
HIP histograms go sometimes crazy due to interference of the tworeadout programs for radfets and new radmon board.A. Polini is looking into it.
RadFETs
C. Horn
DESY, 28.2.2006 TSS: Run Coordinator’s Report 26
LUMI STATUS
o Online - PCAL activities during the shutdown + replaced some cables and temperature sensors + PCAL covered by additional lead blocks (from proton beam) - No hardware problems since last collaboration meeting (except Trigger Board reset button) - not necessary to mention :) - LUMI DQM available in HIP server - Testing the readout electronics linearity of the PCAL showed discrepancies wrt to the last such test needs to be further investigated.
o Offline - No changes in data quality - Egas bremstrahlung spectrum needed for cross check (electron only running)
M. Gil
DESY, 28.2.2006 TSS: Run Coordinator’s Report 27
MORE … … not covering all components
¶ Trigger, DAQ, more on CAL see talks in this session.
¶ 6m Tagger – 6m tagger now included in MOZART; noise etc. still have to be added. – Studies for use in FL analyses are under way.
¶ C5. – Currently fighting problems with VME controller .
¶ ….
More in tomorrow’s “detector status, offline and analysis” session.
DESY, 28.2.2006 TSS: Run Coordinator’s Report 28
OUTLOOKGreat data to come!
¶ HERA startup promising: – number of problems acceptable; – backgrounds mostly under control; – so far good currents and lumi.
¶ ZEUS is more or less stable; more and more components seem to suffer from ageing.
¶ Looking forward to one more year of high lumi, high statistics, high quality data!
DESY, 28.2.2006 TSS: Run Coordinator’s Report 29
QuickTime™ and aTIFF (LZW) decompressor
are needed to see this picture.
CFLTp Status
S. Chekanov, J. Loizides, S. Miglioranzi, D. Nicholass, A. Pellegrino
Input cards• 3 Spares: 1 at Jade Hall, 2 at ZEUS
Comm Cards
• 1 new spare at Jade Hall in System, used for tests.• 1 old card at ZEUS.
QuickTime™ and aTIFF (LZW) decompressor
are needed to see this picture.
Comments
• Spare status is unchanged from previous meeting.