Aggregator
Operator SIGN IN
Operator SIGN IN
Operator SIGN IN
rfTrimUp/Down
Ops reported that rfTrimUp/Down script was throwing a socket error because it was unable to turn off
"Unable to suspend AutoChris: <C++ Sockets>: Server is unavailable"
Although it was running, I restarted the rfReset (AKA AutoChris). daemon.
Ops tried again, and the error was thrown - however, the script proceeded to trim.
Ops has turn off the rfReset manually from the rfPanel.
RATN Trim Up/Down
RATN Trim Up/Down
RATN Trim Up/Down
COMMENT ON RF work for 2026 HCO
2L10-1 and 7 restored to RF after comm. fixes. monitored HV KMAI.KRRP and other trips in 2L03, 2L05, and 2L09 this morning and things are looking good with most of the problems being taken care of. Circulator in 2L03-7 will last at 12 Mv/m until we can look at all of them after they are at the DRVH and stable for a week of running ! Good Job everybody on getting beam for the weekend !!!
RATN Trim Up/Down
2L03-7 KRRP Trip at 1152 today
Monitored KRRP drop at 1152 and after Mike McCaughan lowered gradient from 18.5Mv/m with 138kW to 9.6Mv/m where KRRP spikes above 250kW and faults. KRRP spiked to 200kW several times today at even lower gradients and pretty sure this corresponds to Cavity de-tuning and CRFP changes during the changes. Running well at 12 Mv/m with ~100 mw KRRP and will stay at that gradient until the rest of the circulators can be monitored as well. Circulator load change outs require no beam and opening the waveguide so this ain't happing until a maintenance day !!!!
"SWon call looking at RATN software"
COMMENT ON 2L03 LLRF Commissioning
RATN Trim Up/Down
CREW CHIEF SIGN IN
THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY
ACCELERATOR OPERATIONS CREW CHIEF SIGN IN FORM
Date : 03-13-26
Time : 15:34:51
Day : Friday
Shift : Swing
Crew Chief : Forman
Program Deputy: Roblin
Team : C
Arm : Anthony
Designated SSO: Shenenberger
LERF Operator:
Operators : Anthony, Shenenberger, Shriner
This stamp certifies that the above Crew Chief has read/reviewed/received the following:
COMPLETED 2L03 LLRF Commissioning
QuickPic - RATN program AutoChris server error
The following cavity histories have been updated: 2L10-8
The following cavity histories have been updated:
2L10-8
Username: kerns
Date/Time: 03-13-26_15:33:03
RF Status: Bad
Tuner Status: Good
Comment: Unbypassed to restore filaments but had Filaments Volts High fault right away. Re-bypassed again.
Special Instructions:
Maintenance Tag: Component: Filament Board
RATN Trim Up/Down
ced2Epics modified EPICS PVs
- R251ODVH: found 14; restored to CED value of 18
- R253ODVH: found 16; restored to CED value of 12
- R254ODVH: found 17; restored to CED value of 10
- R256ODVH: found 16.6; restored to CED value of 18










