6MSD Weekly Scheduling Meeting. 1:30, MCC Conference Room

Transcription

1 6MSD Weekly Scheduling Meeting 1:30, MCC Conference Room October 26, ) Glance Back and 2-Week Look Ahead (F. Pilat) mins 2) Operations Recovery Status (A. Freyberger) mins 3) Key Service Provider Reports mins (a) Magnet Recovery Effort (K. Baggett) (b) Alignment (C. Curtis) (c) EESIC (O. Garza) (d) Software (M. Bickley) 4) Safety Report (R. Owen)... 2 mins 5) Hall A g2p Status (K. Slifer) mins 6) Meeting Recap and Action Items (All)... 2 mins

2 6MSD: Glance back & look ahead Fulvia Pilat 6MSD Meeting October 26, 2011

3 Progress Wed Oct 12 Wed Oct 26 Weeks: 24 down, 3 to go (24 days to November 19) Highlights: Civil construction, good progress (Tagger wall up possibly at the end of this week) Repair plan for the spreader magnets in progress Operations start-up: excellent progress in some area (i.e. high-current injector set-up) but lots of challenges in the RECO process more on the next talk C100 tests last week, still activity this week Areas of attention: Impact of RECO and system work on the start-up schedule C100 data on micro-phonics and neutron photo-production: impact on the C100 plan for test with beam and operability Overall plan for Hall A at Lab level

4 2 weeks look ahead Final phase of civil work, including Tagger wall Wrap-up of spreader magnets repairs RECO process Beam spin-up in the linacs Test of C100 with beam, then BBU studies Start of CEBAF 5.6 GeV set-up

5 Shut-down (s) Organization Formally 6MSD in place till November 19 Will be followed by a 12MSD Organization Transition phase: Day-to-day organization and priority focused on operations start-up Weekly 6MSD Thursday meetings Lessons learned process: management and technical Input from people, feedback Definition and discussion of 12 MSD Organization

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8 Accelerator 6MSD YR Recovery Effort October 26, 2011

9 Event Overview Two YR magnets overheated while being powered up for the first time Heat level caused epoxy to melt and catch fire LCW valves were not turned on for these two YRs Temperature interlocks did not cause power supply to trip off Three teams assigned to event Investigation Recovery Response All three teams are currently making good progress Recovery going very well

10 Affected Magnets

11 Current Status of Recovery Initial assessment work completed - RADCON and IH assessment of area and clearance/direction to proceed with work effort Initial beam line clean up completed Diagnostic wiring removed Safety System components and wire removed DC power leads and other magnet connections removed Vacuum disconnected 2 YR magnets and 1 AN magnet removed to magnet measurement area And we can now see the light at end of tunnel - 2 YRs from spare inventory QC d and magnetically measured AN magnet repaired and re-measured YRs and AN installed 2A alignment completed Vacuum hooked up. Pump down underway Area diagnostics assessed, repaired and checked out ok DC power systems hooked up LCW hooked up BLMs being hooked up now

12 Re-installation

13 Remaining Effort Oct 24,2011 Oct 25,2012 Oct 26,2013 Oct 27,2014 Oct 28,2015 Monday Tuesday Wednesday Thursday Friday Install Dipoles AN, YRs Survey 2A DC power hookup Survey 2B Vacuum chamber connections Vacuum Pump down Diagnostics hookup Safety Systems Hookup Checklist inspections Complete Checklist inspections An integrated checklist has been put together This will be completed and handed over to accelerator at the completion of the recovery effort The checklist will use archive information from previous work in the spreader areas, expert feedback from the work teams, and input from the investigation team.

14 Shutdown Work Summary Organization: Alignment Name: Chris Curtis Date: 26th Oct, 2011 Last Week Work That Went Better Than / As Expected: Q-Weak target alignment completed, finals to do. Elevation tie between north linac and Tagger area completed. PEPPo initial alignment completed. West arc stack 15 dipole check completed. YR magnet initial alignment completed, finals to do. Hall C HKS removal elevation survey completed. Work That Went Slower Than Expected, Delays, and Issues: Hall D solenoid alignment delayed and re-started Ongoing Shutdown Work Table 1: Next Week's Work ( green = no concerns; yellow = some concerns; red = serious concerns) Project & Customer Status Completion Tasks Comments/Concerns 12GeV arcs X October Check on stack 15 dipoles Possibly check again this week 6 Gev machine X Oct 28 YR septa & region alignment This week Hall D X October Solenoid alignment Continuing this week Hall C Q-Weak X Nov Beamline & detector surveys Starting this week 6MSD weekly mtg - Align Oct-26-2 Page 1 of 3

15 Project & Customer Status Completion Tasks Comments/Concerns Hall D X Oct / Nov Berm elevation / photon pipe check Survey checks for contract completion Hall B X Oct / Nov Complete target /beamline Start next week alignment G2p X TBD Harp & Dump fiducialization Harp now available Table 2: Other Upcoming Work ( green = no concerns; yellow = some concerns; red = serious concerns) Project & Customer Status Completion Tasks Comments/Concerns Hall A - G2p X TBD Alignment of articulating Filler work? beamline Hall B X TBD Complete target /beamline Continuing alignment Hall C - Q-Weak X TBD Final alignment of detectors etc. Continuing into November New Work Requests Requiring Schedule Changes: YR area re-alignment Permits Not Already in Hand (hot work, lifting, blind penetrations): None Significant Problems Pending (delays, technical issues, resource issues, scheduling): OK Staffing Outlook: OK 6MSD weekly mtg - Align Oct-26-2 Page 2 of 3

16 6MSD weekly mtg - Align Oct-26-2 Page 3 of 3

17 Shutdown Work Summary Organization: EESIC Name: Omar Garza Date: Last Week Work That Went Better Than Expected: Work That Went Slower Than Expected, Delays, and Issues: Ongoing Shutdown Work Table 1: Next Week's Work ( green = no concerns; yellow = some concerns; red = serious concerns) Project & Customer Status Completion Tasks Comments/Concerns Hall C Qweak Cavity Electronics Hall A G2P Low Current BPM Electronics Hall A G2P Diagnostics Hall A G2P Motor Driver Chassis 12Gev SRF Vacuum Instrumentation X Ongoing Building Chassis Parts Order Complete Receiver Brds in Assembly 1 DAC Brd. Assembled X Ongoing Complete PC Brds. <2wks PC Brds. Completed Expedite order In-House assembly X Ongoing Cables completed Awaiting Driver Chassis Harp 1 installed, Harp 2 assembled, YAG assembled & tested X Ongoing Testing Unit delivered to Software X Ongoing SL23, 24, 25 Going Well Shutdown Work Summary Page 1 of 2

18 Table 2: Other Upcoming Work ( green = no concerns; yellow = some concerns; red = serious concerns) Project & Customer Status Completion Tasks Comments/Concerns Injector PePPo Ops AIPBSY (I to V) Module Accelerator Network Firewall Configuration Accelerator Maintenance X Ongoing Beam Scrappers wiring Faraday Cup wiring Viewer wiring completed BPMs X On-hold Assembly, Testing Software X Ongoing Phase I Segment config. Phase II Failover config. Phase III Rules configuration Phase IV Network Implementation X Ongoing Diagnostics SL, BSY Vacuum ACC. Repairs, Hall PM New Work Requests Requiring Schedule Changes: Permits Not Already in Hand (hot work, lifting, blind penetrations): Significant Problems Pending (delays, technical issues, resource issues, scheduling): Staffing Outlook: Will be completed on Friday Parts Complete Brds. Procured Phase I completed Going Well Controls complete BPMs complete Diagnostics complete Shutdown Work Summary Page 2 of 2

19 Shutdown Work Summary Organization: Controls Software Name: Matt Bickley Date: October 26, 2011 Last Week Work That Went Better Than/As Expected: PEPPo: Discriminator/scaler for data acquisition done 12 GeV: Low-level RF done CASA: MO monitor done Work That Went Slower Than Expected, Delays, and Issues: Ongoing Shutdown Work Table 1: Next Week's Work ( green = no concerns; yellow = some concerns; red = serious concerns) Project & Customer Status Completion Tasks Comments/Concerns PEPPo X? Viewers Ready to test with hardware PEPPo X? Dipole power supply controls Software development 5o% done; hardware design issues remain 12 GeV X 24-Oct-11 RF screens Ops fault screen installed tomorrow PSS/MPS X 15-Nov-11 CAEN power supply Under development Operations X 1-Nov-11 Control system write logging Wider installation Operations X 1-Nov-11 Confirm network changes do not impact accelerator or endstation operation 6MSD Bickley Page 1 of 2 Testing 80% complete; no problems found G2P X Jan 12 New harp controls Software testing ongoing

20 Project & Customer Status Completion Tasks Comments/Concerns G2P X Jan 12 New BPM controls Position and calibration algorithm to be developed; design out to fab G2P X Jan 12 Viewers Ready to test with hardware G2P X Jan 12 Septum magnet controls Waiting for information for last 5%; Table 2: Other Upcoming Work ( green = no concerns; yellow = some concerns; red = serious concerns) Project & Customer Status Completion Tasks Comments/Concerns 12 GeV X 14-Nov-11 IOC boot management Hall A X Jan 12 IOCs moved to accelerator network Implementation and 80% of testing done; testing remains for 20% Operations X? LCW monitoring Server purchased Operations X 14-Nov-11 Digital image management Camera and network ready; computer to be installed New Work Requests Requiring Schedule Changes: None Permits Not Already in Hand (hot work, lifting, blind penetrations): None Significant Problems Pending (delays, technical issues, resource issues, scheduling): None Staffing Outlook: OK 6MSD Bickley Page 2 of 2

21 g2p Status K. Slifer 10/26/2011

22 Septa Chicane Upside-down Girder Local Dump Polarized Target g2p Configuration Upstream mods Slow raster New BPMs/BCMs Tungsten Calorimeter

23 Polarized Target Status Two shorts to ground Arc to ground, mult. burnt wires Difficult to repair Figs./info courtesy C. Keith

24 Polarized Target Status Two shorts to ground Arc to ground, mult. burnt wires Difficult to repair Figs./info courtesy C. Keith Hall B Poltarg Magnet Feasibility study indicates that Hall B poltarg magnet is compatible with g2p rig Would allow to achieve most physics goals of g2p Retrofitting/testing would probably take till mid-feb.

25 Previously Planned Coverage 57 days : Septa In two highest kinematics require alot of days 54 days : Septa Out 42 days : Transition

26 Previously Planned Coverage 57 days : Septa In two highest kinematics require alot of days 54 days : Septa Out 42 days : Transition Delay to Feb.

27 What we can do with late start & Hall B coils Lose 2 highest Energies extend 2.2 Gev bands to large W Spend additional time on elastic Start commissioning after New year

28 Impact on E Projection for the LT spin polarizability

29 Impact on E We lose the highest interpolated Q 2 point

30 Impact on E Lost overlap Projection for GEp/GMp Lose overlap with large Q 2 run.

31 Installation Status

32 Septa In place, powered, LCW. B vs I curve next week.

33 Slow Raster assembled, in place. Final test needed. Tungsten Calorimeter Calib demonstrated 1% accuracy. Ready for physics Figs courtesy T. Mikalski

34 Chicane FZ VDC (PS) requires AI magnet in series to achieve desirable load on PS FZ VDC (PS) New vacuum chambers to contain beam path for all energy levels Draws from hall LCW for cooling (magnets and PSs) Figs courtesy T. Mikalski

35 Chicane Final full power test and alignment mid-nov. Figs courtesy T. Mikalski

36 Superharp 20 um wire for low current New fork design New controller chassis PC104 w/ new SW expect complete mid-nov. Figs courtesy T. Mikalski

37 BPM/BCM w New Recievers New 4 channel receiver design tailored for low current measurement M15 antenna style BPMs standard BCMs Dynamic Range - ( na) Resolution/Accuracy um Output Rate - 2 khz Bench tests performed. Looks promising. Expect built/tested in mid-nov.

38 g2people Post-Docs 7+ Students Postdocs Jixie Zhang Kalyan Allada James Maxwell Vince Sulkosky Aidan Kelleher Fac/Staff A. Camsonne J.P. Chen Doug Higinbothan Karl Slifer Grad Students Pengia Zhu Min Huan Melissa Cummings Ryan Zielinski Toby Badman Chao Gu Jie Liu

39 Detectors/DAQ Checkout underway. Gas Cer looks ok. 3 channels with low NPE Left extension to be installed. 3 rd Fastbus crate for each arm. Happex DAQ for low noise BPM/BCMs. Local Dump Installed Discussing with Radcon on best way to access. New spectrometer optics Full simulation (SNAKE+GEANT4) Planning for optics commissioning. involving many previous optics and septa experts. Third arm Detector Goal : supplementary 5% measurement of P b P T Scintillator, power supplies, GUI, cabling all identified. Shielding: 30 cm HDPE for line of sight from dump. Testing of PMTs and Scintillator looks good.

40 Summary Assuming Hall B coil package will be scavangeable and GEp runs at 7 degree instead of 20. Reduced target region of uniformity: 3 -> 2 cm DSV Adding in some extra kinematics for g2p at large W We can achieve the bulk of the physics goals of E and E E loses one Q2 point E loses the overlap with high Q2 data.