G2p/GEp Beamline Tim Michalski Project Lead. Overview Facilitate the design, procurement, and build...

g2p/GEp Beamline

Tim Michalski

Project Lead

Overview

• Facilitate the design, procurement, and build of the beamline – up to the target chamber

• g2p/GEp Beamline Overview• Experimental Plan• Project Overview• Project Status• Project Challenges with Risk Mitigation• Project Schedule and Milestones

Beamline Overview

A second configuration will have the target at the pivot and a longer articulating arm.

Experimental PlanRun #

Bam Energy

Beam Current

Target Angle Target Location Septa Magnet Dump

Target Material Target field Comments

1 2.257 1 uA 20 87 cm upstream N/A N/A Hall A Dump N/A 0.0 Straight Thru Beam at nominal height.

2 2.257 50-130 nA 90 87 cm upstream g2p Yes - 6 deg Local Dump NH3 5.1 T

3 2.257 150 nA max 90 87 cm upstream g2p Yes - 6 deg Local DumpCarbon(?) 5.1 T Thru Target(?) - Optics

4 2.257 50-130 nA 20 87 cm upstream GEp Yes - 6 deg Local Dump NH3 5.1 T




8 1.159 150 nA max 90 87 cm upstream g2p Yes - 6 deg Local Dump Carbon(?) 2.5 T Thru Target(?) - Optics





27 2.257 50-130 nA 20 87 cm upstream G2p Yes- 6 deg Local Dump NH3 5.1T Target nominal height

28 2.257 50-130 nA 90 87 cm upstream g2p Yes - 6 deg Local Dump NH3 5.1 T Target nominal height

13 3.355 1 uA N/A 87 cm upstream N/A N/A Hall A Dump N/A 0.0 Straight Thru Beam at nominal height

17 3.355 50-130 nA 0 87 cm upstream g2p Yes - 6 deg Hall A Dump NH3 5.1 T Longitudinal target polarization run



18 2.257 1 uA N/A At pivot N/A N/A Hall A Dump N/A 0.0 Straight Thru Beam at nominal height.

19 2.257 50-130 nA 90 At pivot g2p No - 12.5 deg Local Dump NH3 5.1 T

20 2.257 150 nA max 90 At pivot g2p No - 12.5 deg Local Dump Carbon(?) 5.1 T Thru Target(?) - Optics

21 2.257 50-130 nA 90 At pivot GEp No - 12.5 deg Local Dump NH3 5.1 T

26 1.159*** 50-130 nA 90 At pivot No – 12.5 deg Local Dump N/A 2.5 T Optics Transform

22 3.355 1 uA N/A At pivot N/A N/A Hall A Dump N/A 0.0 Straight Thru Beam at nominal height.

23 3.355 50-130 nA 90 At pivot g2p No - 12.5 deg Local Dump NH3 5.1 T

24 3.355 150 nA max 90 At pivot g2p No - 12.5 deg Local Dump Carbon(?) 5.1 T Thru Target(?) - Optics

25 3.355 50-130 nA 90 At pivot GEp No - 12.5 deg Local Dump NH3 5.1 T

*** - FZ1 and FZ2 in position for 2.2 GeV run, but with half field strength on FZs and Target magnets

Targ

et E

leva

ted

by 9

cm

Rev 3

Run Trajectories

FZ1

FZ2

Target

FZ1

FZ2

Target

Region 1

Slow Raster/Calorimeter Stand

Regions 2 and 3

Upside Down Girder – Region 2

FZ1 Magnet Stand – Region 3

Viewer – Region 3

Beam Diagnostics Girder “Articulating Arm” – Region 3

Project Overview

• Design, procurement, component calibration and testing– Now through May, 2011– Some components arrive after May

• Access to Hall A for installation – May 16, 2011

• Installation completion – start of Physics– November 19, 2011

Project Status

• Regions 1 and 2 designs complete and material ordered

• Region 3 design complete – procurement under way

• Calorimeter controller repaired and SW upgrades complete

• I&C electronics designed and being built• New Transport electronics being built for existing

BPMs in Hall A• Safety systems for experiment reviewed• Resource planning integrated into 6MSD

schedule

Project Challenges

• BPMs and BCMs for Low Current data– Mitigation

• BPM – short M15 style, new electronics, tested in North LINAC

• BCM – new receiver, tested in Hall A

• FZ Magnet PS requirements evolving– Need up to 4 kG, requiring 231A for FZ1– Need up to 8 kG, requiring 465A for FZ2– Mitigation – assessed capabilities of magnet

power supplies in Hall C – meet requirements – assembling spares

Project Challenges

• Acquisition of equipment from various sources– FZ magnets, corrector magnets, slow raster,

new BPMs, power supplies, controllers– Mitigation – get control as soon as possible,

test and calibrate early (before installation)• Resurrection of Tungsten Calorimeter

– Reposition in beamline, re-establish functionality, recalibrate

– Mitigation – Controller extracted from Hall A, repaired, SW complete

Project Challenges

• Slow Raster control issues in previous experiment– Mitigation – New function generator – Testing

in Progress by Physics Fast Electronics Group

• Installation at the same time as 12 GeV upgrades during 6 month down– Mitigation – tied to detailed 6MSD planning –

all resources identified in schedules – have ~3 weeks float

Project Challenges

• Not all material for installation on site yet– Mitigation – FZ2 Stand procurement being managed –

potential impact to 6MSD installation reviewed– Viewer and Articulating Arm Girder /

Positioning – manage through Machine Shop and local vendors

Safety – PSS / FSD• Uses standard BLA system components• Monitoring FZ magnet PS current – limits set to ensure

beam is controlled successfully through the chicane• FSD masking for Calorimeter Operation• Viewer in chicane – allows MCC Operators to view beam

for steering confirmation• Thermocouples on LC dump• Viewer on LC dump – allows MCC Operators to view

beam for steering confirmation• Update PSS sweep procedure as required after walk-

through, equipment installation• “Lock Out” FZ2 stand control – remove controller

Beamline Installation Schedule

Beamline Installation Milestones

G2p/GEp Beamline Tim Michalski Project Lead. Overview Facilitate the design, procurement, and build...

Documents

Transcript of G2p/GEp Beamline Tim Michalski Project Lead. Overview Facilitate the design, procurement, and build...