RC Meeting Information

RC Daily Meetings are at 3:15pm, remote connection link: https://bluejeans.com/256205934

Accelerator and Hall Status

Beam restoration to Hall A and centering on the Carbon hole was successful during Friday swing and Saturday owl. See here.
Provakar took his BBCAL cosmic run 11955 with BB and SBS on and loaded new HVs to gain-match at the trigger level.
Optics program started early day shift.
Beam delivery was stable at 5 uA, but given low rates we asked to increase to 15 uA. MCC said we cannot exceed 10 uA. Operational restriction is supposed to be 20 uA, but I decided not to escalate this to higher levels before MCC is able to reliably deliver even 10 uA
attempts to deliver 10 uA led to high trip rate. We backed off to 8 uA to get more stable beam to complete optics program.
As of this writing, we are running on the 5-foil optics target, and immediately after this meeting, depending on the DAQ and beam status, we will request controlled access to remove the sieve and move to production.

HCAL: adjusted latency using optics runs
BBCal: took cosmics with BB and SBS on, loaded new HVs to gain match signals at the trigger level for production field settings
Timing hodoscope: no update, initial data looks good
Grinch: See good timing peak for all channels
GEMS: Found good signals peaking in first three time samples, asked GEM experts to adjust latency
Beamline: no update
DAQ: some DAQ problems during optics running.
Replay analysis: need to get ready for fast tracking when we take the sieve out and move to production