RC meeting and Run Plan, Tuesday February 14th
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Contents
RC Report
- https://logbooks.jlab.org/entry/4131039
- RC: Sean Jeffas, sj9ry@virginia.edu
Summary
- Ran with ~30 uA beam current most of yesterday, collecting 0.7C
- At 9 am the accelerator went down due to many RF issues. Will be down until 8 pm.
- BBCal block now look good - https://logbooks.jlab.org/entry/4130863
- GEM experts are in the hall working on SBS GEMs
Issues
- BB GEM HV alarm went off but did not trip and everything looked fine. Likely just some transient fluctuation, https://logbooks.jlab.org/entry/4129914
- Target laser temperature alarms went off but returned to normal on their own, https://logbooks.jlab.org/entry/4130120
- HCal time shifted by 30ns. Simply restarting CODA brought this back to normal, https://logbooks.jlab.org/entry/4130175. Good catch by the shift lead, shift crews should always restart a run if they see this in the 50k replay.
- Target windows computer wants to update on February 20th
Current Status
- Running 45 uA on He3
Run Plan
- Continue running 45 uA on He3
- Accelerator maintenece Wednesday or Thursday
Data Collection and Polarization Status
- 30.2C of uncorrected charge for this kinematic (34.9C of corrected charge)
- Last NMR 48.7%
Other Topics/Status Updates
- Anything else?
- Bill wants to change the raster settings after some analysis
Requested Accesses to the Hall
- Jack would like to collect some cables
- GEM team need like a 3-4hour access for the SBS GEMs DAQ troubleshooting
