Aggregator

Log Number: 4486252Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: UNMasked Hall C Normal Target FSD

Log Number: 4486251Logbook(s): 

• ELOG

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)

Log Number: 4486250Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: Masked Hall C Normal Target FSD

Log Number: 4486249Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: Masked Hall C Normal Target FSD

Log Number: 4486238Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl632

Saved: jhoward 04-10-26 23:15:42 {A:i B:5 C:2 E:345 A=BS B=BS C=CW D=BS 0R08=4.05 No dumps in.

Log Number: 4486237Logbook(s): 

• ELOG
• LERFLOG

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:

Log Number: 4486236Logbook(s): 

• ELOG

Tags: 

• ShiftSummary

Body:  CEBAF SHIFT LOG Shift Summary

Start of shift: Performing beam optics

Log Number: 4486235Logbook(s): 

• ELOG

Tags: 

• BeamAccounting

Body:  Accelerator PHYSICS STUDIES RESTORE ACC DOWN OFF (SAM) Planned 8 0 0

Log Number: 4486223Logbook(s): 

• ELOG

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.

Log Number: 4486222Logbook(s): 

• ELOG

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.

Log Number: 4486209Logbook(s): 

• DCLOG
• ELOG

Entry Makers: alexsBody: 

Card would not take setpoint. Beam is very steady to Hall C at the moment, so locally turned off the power switch on the card and will swap once there's some downtime.

Log Number: 4486202Logbook(s): 

• ELOG

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.

Log Number: 4486201Logbook(s): 

• ELOG

Tags: 

• Autolog
• MCC8am

Body:  */ ATLis Comments Posted 18:00 Thursday April 09 through 18:00 Friday April 10 AES DC power Systems Replace LNS Power Supply MBL0R04

2026-04-10 10:04 - Jason Delk

PTW is approv

Log Number: 4486200Logbook(s): 

• ELOG

Entry Makers: anthonyBody: 

Log Number: 4486198Logbook(s): 

• ELOG

Entry Makers: alexsBody: 

Contacted guard shack to contact facilities

Log Number: 4486193Logbook(s): 

• ELOG
• SRFLOG

Body: 

No major update.

Log Number: 4486192Logbook(s): 

• ELOG

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

Log Number: 4486191Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl05

Saved: eforman 04-10-26 16:50:13 {A:i B:5 C:2 E:345 A=BS B=BS C=CW D=BS 0R08=3.90 No dumps in.

Log Number: 4486187Logbook(s): 

• HCLOG
• ELOG

Entry Makers: alexsBody: 

Kicked the beam by ~1 mm, but orbit locks are walking the positions back to where they were

Log Number: 4486186Logbook(s): 

• HBLOG
• ELOG

Entry Makers: hauenstBody: 

Since no beam is expected, the hall is put in controlled access and detectors/targets into safe state. All shifts are put on standby and the counting house will be unstaffed until Monday morning.
For urgent matters please contact the run coordinator at (757) 575-7540