Recent Log Entries
Crew Chief Timesheet Summary: 06 Dec 2023 SWING
"MQA5A30 mismatch - cycled"
Downtime Incident CLOSED: Hall C drift chamber trouble
Ran Hall C charge feedback from 16:10 to 16:27
When production beam currents were restored after the Moller run, the charge asymmetry was about +1600 ppm.
I ran the Hall C charge asymmetry feedback from 16:10 to 16:27 during parity run 13756. We can see that the asymmetry has been brought to zero. The initial HC IA setting was 16500, and the final HC IA setting was 21952.
Hall D Tagger temporarily posted ODH 2
QuickPic - 1L08-5 derated to 4.4MV/m to help with 1L08-4,5,6 trippyness
"MBC7R09H mismatch - cycled"
The OPS DRVHs for the following cavities have been updated: 1L08-5
The OPS DRVHs for the following cavities have been updated:
1L08-5
Username: dthomas
Date/Time: 12-06-23_17:15:07
RF Status: Good
Tuner Status: Good
Comment: DRVH=4.400 Lowering ODVH to reduce trips
Previous OPS DRVH: 4.45
Special Instructions:
The OPS DRVHs for the following cavities have been updated: 2L13-4
The OPS DRVHs for the following cavities have been updated:
2L13-4
Username: benesch
Date/Time: 12-06-23_17:10:30
RF Status: Good
Tuner Status: Good
Comment: DRVH=10.300 Arc Rate Management four at 10.4, evenly spaced
Previous OPS DRVH: 10.4
Special Instructions:
The OPS DRVHs for the following cavities have been updated: 1L08-6
The OPS DRVHs for the following cavities have been updated:
1L08-6
Username: benesch
Date/Time: 12-06-23_17:09:20
RF Status: Good
Tuner Status: Good
Comment: DRVH=5.100 Arc Rate Management four at 5.18, evenly spaced
Previous OPS DRVH: 0
Special Instructions:
The OPS DRVHs for the following cavities have been updated: 1L08-5
The OPS DRVHs for the following cavities have been updated:
1L08-5
Username: benesch
Date/Time: 12-06-23_17:08:33
RF Status: Good
Tuner Status: Good
Comment: DRVH=4.450 Arc Rate Management five at 4.53, irregular spacing
Previous OPS DRVH: 0
Special Instructions:
Downtime Incident CREATED: Hall C drift chamber trouble
Operator SIGN IN
Operator SIGN IN
Experimenter Timesheet Summary: 06 Dec 2023 DAY
Experimenter Timesheet Summary: 06 Dec 2023 DAY
Downtime Incident CLOSED: iocbd1 loss of comms
FSD Masking Tool: Successful Destination masking to: HallB,HallC
Crew Chief Shift Log, 2023-12-06 DAY
Start of shift: xB: 60nA on LD2, xC: BNR for drift chamber tests