Aggregator
QuickPic - MBC9S06H mismatch - setpoint taken and cycled
QuickPic - xC target change from 4 cm Dummy to Loop 3 (LH2) at 4 uA, raster: 2 mm by 2 mm
Almost 4 degree change in NL GP while Hall C was BNR
When we tried to send back to the Hall after they finished setting up, we were tripping BLA immediately. Sent tune beam to the 1R and found energy was way off and the beam spot looked squished. We had to adjust the NL GP almost +6 degrees to get back most of the energy. Checked SL GP too, and that was adjusted -2 degrees. Checked Pathlength to C dumplet, but that looked good.
We were able to send back to the Hall after pulling the dumplets.
Downtime Incident CLOSED: Phase seems to have slipped in the North
Downtime Incident CREATED: Phase seems to have slipped in the North
Downtime Incident CLOSED: Hall C configuration change
AutoLog - UNMasking Hall C Normal Target
iCalibrate: Hall C
"xC BNR for config change"
AutoLog - Masking Hall C Normal Target
1L05-2 phase offset optimization
iocsl2 CAMAC no xrate, crate 11, card 8 troubleshooting
Contacted RF on-call for guidance. We were advised to ensure the RFCM is fully seated in the rack, then clear the limit fault on the quick check. Gave it a good push, cleared the limit fault, and it looks clear now! We'll keep an eye on it nonetheless.
Edit: Unfortunately the no xrate alarms came back for this channel. Not sure we can do any further troubleshooting on it tonight, but it doesn't appear to be causing immediate issues.
Operator SIGN IN
Operator SIGN IN
ACCELERATOR OPERATOR SIGN IN FORM
OPERATOR: Christian
DATE: 04/12/2026
SHIFT: Owl
The operator has read the following:
ELOG
PD Shift Plan
Radiation Surveys for PSS Segments in Controlled Access
PSS Log
The operator has reviewed new entries or verified there are none in the following:
Operational Restrictions
JLab Authorization Manager
System Readiness Tool
Accelerator Bypassed-Interlocks Log
For the current experiments, the operator has reviewed relevant:
Experiment Binders
The operator has received:
Shift Turnover










