1. g2p/GEp Beamline Tim Michalski Project Lead

2. 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

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

4. Experimental Plan Run # Bam Energy Beam Current Target AngleTarget LocationSepta MagnetDump Target MaterialTarget fieldComments 12.2571 uA2087 cm upstreamN/A Hall A DumpN/A0.0Straight Thru Beam at nominal height. 22.25750-130 nA9087 cm upstreamg2pYes - 6 degLocal DumpNH35.1 T 32.257150 nA max9087 cm upstreamg2pYes - 6 degLocal DumpCarbon(?)5.1 TThru Target(?) - Optics 42.25750-130 nA2087 cm upstreamGEpYes - 6 degLocal DumpNH35.1 T 51.1591 uA2087 cm upstreamN/A Hall A DumpN/A0.0Straight Thru Beam at nominal height. 61.15950-130 nA2087 cm upstreamGEpYes - 6 degLocal DumpNH32.5 T 71.15950-130 nA9087 cm upstreamg2pYes - 6 degLocal DumpNH32.5 T 81.159150 nA max9087 cm upstreamg2pYes - 6 degLocal DumpCarbon(?)2.5 TThru Target(?) - Optics 91.7061 uA2087 cm upstreamN/A Hall A DumpN/A0.0Straight Thru Beam at nominal height. 101.70650-130 nA9087 cm upstreamg2pYes - 6 degLocal DumpNH32.5 T 111.706150 nA max9087 cm upstreamg2pYes - 6 degLocal DumpCarbon(?)2.5 TThru Target(?) - Optics 121.70650-130 nA2087 cm upstreamGEpYes - 6 degLocal DumpNH32.5 T 272.25750-130 nA2087 cm upstreamG2pYes- 6 degLocal DumpNH35.1TTarget nominal height 282.25750-130 nA9087 cm upstreamg2pYes - 6 degLocal DumpNH35.1 TTarget nominal height 133.3551 uAN/A87 cm upstreamN/A Hall A DumpN/A0.0Straight Thru Beam at nominal height 173.35550-130 nA087 cm upstreamg2pYes - 6 degHall A DumpNH35.1 TLongitudinal target polarization run 153.35550-130 nA9087 cm upstreamg2pYes - 6 degLocal DumpNH35.1 T 163.355150 nA max9087 cm upstreamg2pYes - 6 degLocal DumpCarbon(?)5.1 TThru Target(?) - Optics 182.2571 uAN/AAt pivotN/A Hall A DumpN/A0.0Straight Thru Beam at nominal height. 192.25750-130 nA90At pivotg2pNo - 12.5 degLocal DumpNH35.1 T 202.257150 nA max90At pivotg2pNo - 12.5 degLocal DumpCarbon(?)5.1 TThru Target(?) - Optics 212.25750-130 nA90At pivotGEpNo - 12.5 degLocal DumpNH35.1 T 261.159***50-130 nA90At pivotNo – 12.5 degLocal DumpN/A2.5 TOptics Transform 223.3551 uAN/AAt pivotN/A Hall A DumpN/A0.0Straight Thru Beam at nominal height. 233.35550-130 nA90At pivotg2pNo - 12.5 degLocal DumpNH35.1 T 243.355150 nA max90At pivotg2pNo - 12.5 degLocal DumpCarbon(?)5.1 TThru Target(?) - Optics 253.35550-130 nA90At pivotGEpNo - 12.5 degLocal DumpNH35.1 T *** - FZ1 and FZ2 in position for 2.2 GeV run, but with half field strength on FZs and Target magnets Rev 3

5. Run Trajectories FZ1 FZ2 Target FZ1 FZ2 Target

6. Region 1

7. Slow Raster/Calorimeter Stand

8. Regions 2 and 3

9. Upside Down Girder – Region 2

10. FZ1 Magnet Stand – Region 3

11. Viewer – Region 3

12. Beam Diagnostics Girder “Articulating Arm” – Region 3

13. 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

14. 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

15. 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

16. 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

17. 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

18. 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

19. 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

20. Beamline Installation Schedule

21. Beamline Installation Milestones