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1L15-7 RF drive dying

1 day 21 hours ago
Log Number: 4540977Logbook(s): Entry Makers: alexsBody: 

Degrading klystron drive was discovered at the end of the maintenance day yesterday, and GASK is maxing out trying to run at 70 uA to Hall C. Derated it down to 8.5 MV/m and it's hanging in there aroun 8.3 V GASK, so leaving it there for now. Amp and drive output need to be checked on a maintenance day.

alexs

NL/SL RF Headroom According to LEM

1 day 22 hours ago
Log Number: 4540971Logbook(s): Entry Makers: moserBody: 

Figure 1: 24 MeV of headroom in the NL. Nice. Friday, if memory serves, we had ~7 MeV, dicey -- a C100 cavity away from not being able to make energy.

Figure 2: 45 MeV of headroom in the SL.

Figure 3: Using reCap, 5 cavities recovered yesterday still in use this morning.

moser

iCalibrate: Hall C

1 day 22 hours ago
Log Number: 4540963Logbook(s): Body: Calibration ParametersHall:CTarget: Loop 2 10cmPass: 5Note: Calibrated On:2026-Jul-27 23:36Calibrated By: shrinerFile:C-2026-07-27_2336_Loop_2_10cm_Pass-5.hcdIon ChamberExisting Setpoing (rads/hr)New Setpoint (rads/hr)Compton3,432<
schoene

Operator SIGN IN

1 day 22 hours ago
Log Number: 4540945Logbook(s): Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Shenenberger
DATE:             08/11/2026
SHIFT:               Day

The operator has read the following:
alexs

Operator SIGN IN

1 day 22 hours ago
Log Number: 4540944Logbook(s): Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Barker
DATE:             08/11/2026
SHIFT:               Day

The operator has read the following:
  • ELOG
  • PD Shift Plan
  • Radiation Surveys for PSS Segments in Controlled Access
  • PSS Log
bbarker

iCalibrate: Hall D

1 day 23 hours ago
Log Number: 4540933Logbook(s): Body: Calibration ParametersHall:DTarget: JD80-213 80um 45/135Pass: 5.5Note: Calibrated On:2026-Jul-29 20:36Calibrated By: anthonyFile:D-2026-07-29_2036_JD80-213_80um_45_135_Pass-5.5.hcdIon ChamberExisting Setpoing (rads/hr)New Setpoint (rads/hr)
msmith

MyaPlot Snapshot Owl Shift

1 day 23 hours ago
Log Number: 4540931Logbook(s): Body: 

Channels: IBCAD00CRCUR6, AC:inner:position:y, AC:inner:position:x, IPM5C11B.XPOS, IPM5C11B.YPOS, IPM5C11.XPOS, IPM5C11.YPOS, PSC:coinc:scaler:rate, HD:trig:rate:main, bpu_mean_x, bpu_mean_y

hdops

Shift Information

Shift Owl
CEBAF Program
MCC Crew Chief Deir
MCC Operators Samari, Smith
Program Deputy Park
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Recent PSS History

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