RC meeting and Run Plan, Wednesday April 24th
From SBS wiki
Contents
RC Meeting Information
RC: Jimmy Caylor
Useful Links
Notices in Effect for Shift Crew
- For controlled access call the RC and together you will fill out the Hall access checklist. [1]
- Please pay attention to BTM, incorrect accounting is happening. also make sure to submit all hours, including the last one.
- Please fill out the shift checklist and notify RC if there are any issues
Current Status
On the accelerator side
- Physics beam delivery around 3 am in owl
- Beam studies on Thursday (delivery to Hall A dump)
On the Hall side
- Quick beam checkout with carbon hole - beam position fine
- GEM test with hardware thresholds 3, 2, 1 sigma.
- Data rate increased by 30% at 2 sigma
- Data rate increased by 300% at 1 sigma
- Data rate at 12 uA right now is 400 MB/s
- GEM work while the hall was open was able to get rid of some holes in both BB and SBS GEMs
- roughly 70% efficiency per layer in the rear tracker at 8 uA LH2
- David and Bill were able to find an peak in the active analyzer with some analysis cuts
Current Issues
- SBS GEM efficiency (optimize tracking efficiency vs current)
Special Requests
Sub-system
- SBS and BB magnets
- BB GEMs
- BB Grinch
- BB Cal - Production threshold kept at 1.5 Gev
- BB scin
- SBS GEMs - https://logbooks.jlab.org/entry/4287530
- SBS analyzer + RP hodo - https://logbooks.jlab.org/entry/4287960
- SBS HCAL - https://logbooks.jlab.org/entry/4287249
- DAQ - https://logbooks.jlab.org/entry/4287751
- Analysis
- Target
- Beam line
- Moller
- Raster
