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iCalibrate: Hall C

8 hours 55 minutes ago
Log Number: 4486251Logbook(s): Body: Calibration ParametersHall:CTarget: 4cm DummyPass: 2Note: SHMS angle -17.34,current -422.3Calibrated On:2026-Mar-30 23:40Calibrated By: yoonFile:C-2026-03-30_2340_4cm_Dummy_Pass-2.hcdIon ChamberExisting Setpoing (rads/hr)New Setpoint (rads/hr)
alexs

CREW CHIEF SIGN IN

9 hours 35 minutes ago
Log Number: 4486237Logbook(s): Body: 
THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY
ACCELERATOR OPERATIONS CREW CHIEF SIGN IN FORM

Date : 04-10-26
Time : 23:11:14
Day : Friday
Shift : Owl

Crew Chief : Howard
Program Deputy: Ogur
Team : D
Arm : Chaudhary
Designated SSO: Christian
LERF Operator:
Operators : Price, Chaudhary, Christian

This stamp certifies that the above Crew Chief has read/reviewed/received the following:
jhoward

FFB RF control turned off

11 hours 56 minutes ago
Log Number: 4486223Logbook(s): Entry Makers: alexsBody: 

Setting cavities too high was causing RF trips, so took away FFB's priviliges until it learns to respect drive highs. Corrector feedback is still running.

alexs

Hall C FFB RF controls setting cavities above their drive highs

12 hours 11 minutes ago
Log Number: 4486222Logbook(s): Entry Makers: alexsBody: 

Hall C's FFB RF controls are pushing the cavities in 2L20 past their drive highs. We ran into this phenomenon last year with Hall A, so hopefully the same fix will work. See linked log. We'll keep an eye on it for now and consider disabling RF control if it becomes too damaging to the trip rate.

alexs

iocsl2 intermittent no X rate alarm

14 hours 43 minutes ago
Log Number: 4486202Logbook(s): Entry Makers: shrinerBody: 

Performed a health check on iocsl2 and found the error to be in crate 11 slot 8. Operators checked the physical crate and nothing immediately seemed amiss, so paging RF on-call since this is an RF ioc.

shriner

Historic 4E harp swipes during 80s oscillations

15 hours 53 minutes ago
Log Number: 4486192Logbook(s): Entry Makers: nissenBody: 

Several CASA members were talking this afternoon and we checked the harp traces from last May when the 80s oscillations were happening.
Fig 1 is May 2
Fig 2 is May 7
Fig 3 is May 8 (not as pronounced)
Fig 4 is May 17
Fig 5 is May 18
Fig 6 is May 21 after the oscillations were fixed
Placed here for informative purposes

nissen

Shift Information

Shift Day
CEBAF Program
MCC Crew Chief Humphry
MCC Operators Blackshaw, Janak
Program Deputy Ogur
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