Aggregator

Log Number: 4511252Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Shriner
DATE:             06/13/2026
SHIFT:               Owl

The operator has read the following:

• ELOG
• PD Shift Plan
• Radiation Surveys for PSS Segments in Controlled Access
• PSS Log

Log Number: 4511251Logbook(s): 

• DCLOG
• ELOG

Entry Makers: yoonBody: 

needs TC swap

Log Number: 4511250Logbook(s): 

• DCLOG
• ELOG

Entry Makers: yoonBody: 

took setpoint, no TC swap

Log Number: 4511249Logbook(s): 

• ELOG
• BTLOG

Body: Fopt results from /usr/ntfs/public/optics/diforb/26jun122345
Comment: pre 8E match
HOSTNAME: opsl06
CED WORKSPACE: OPS CED LOGIN KEY: pro
MYA DEPLOYMENT: ops
CONFIG PATH: /cs/prohome/apps/q/QTSnyder_QT5/1-2/fileio/config/cs.conf
DIFORB PATH: /usr/ntfs/public/optics/diforb

Log Number: 4511248Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: Fopt 7.9 completed successfully. The runtime settings include a sample count of 15, a minimum current of 4, and an operating regime of Standard with Excitation in 1S Region. The corrector and RF kicks applied were 1.50006 and 1.50006 volts respectively. The max. amplitude setting was 1 millimeters. The files for this run were saved in the directory /cs/opshome/hlapps/optics/diforb/26jun122345. The X and Y stability of the machine during the run was 0.0612339 and 0.0633816 (mm) respectively.

Log Number: 4511247Logbook(s): 

• BTLOG
• ELOG

Entry Makers: yoonBody: 

1) before
2) after

Log Number: 4511246Logbook(s): 

• ELOG
• BTLOG

Tags: 

• Autolog

Body: dogCalc V0-14 download - beam to 8R
beam to 8R
hostname: opsl06
CED workspace: OPS
CED login_key: pro

Log Number: 4511245Logbook(s): 

• DCLOG
• ELOG

Entry Makers: yoonBody: 

took setpoint and cycled, no TC swap

Log Number: 4511244Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl05

Saved: deir 06-12-26 23:36:39 {A:i B:1 C:3 E:1060 A=BS B=BS C=Tune D=BS 0R08=5.01 8R dump in. A B C dump(s) in.

Log Number: 4511243Logbook(s): 

• ELOG
• LERFLOG

Body: 
THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY
ACCELERATOR OPERATIONS CREW CHIEF SIGN IN FORM

Date : 06-12-26
Time : 23:30:11
Day : Friday
Shift : Owl

Crew Chief : Deir
Program Deputy: Minter
Team : A
Arm : Shriner
Designated SSO: Samari
LERF Operator:
Operators : Samari, Shriner

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

Log Number: 4511242Logbook(s): 

• ELOG

Tags: 

• ShiftSummary

Body:  CEBAF SHIFT LOG Shift Summary

Start of shift: ORFP in progress, steering up Arc 7.

Log Number: 4511241Logbook(s): 

• ELOG

Tags: 

• BeamAccounting

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

Log Number: 4511240Logbook(s): 

• ELOG

Entry Makers: yoonBody: 

1) 1A before
2) 1A after
3) 2A before
4) 2A after

Log Number: 4511239Logbook(s): 

• ELOG

Body: 

HYST AREA Version 7-0 has successfully cycled the following:

Area.Linacs.North

Total Time: 3.033 mins

Log Number: 4511238Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 17176Title:
1L09-7 dropped zone out of filaments

Summary:
ops working to recover, see elog 4511234Duration:
24 minutes

Time Down:
12-Jun-2026 22:40

Time Up:
12-

Log Number: 4511237Logbook(s): 

• ELOG
• CLOG

Tags: 

• Autolog

Body: LEM 9.19.5 was successfully run for the North Linac on 2026-06-12 23:04:55. The application phase took 00:00:14 to complete.

Log Number: 4511236Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 17176Title:
1L09-7 dropped zone out of filaments

Summary:
ops working to recover, see elog 4511234Duration:
18 minutes

Time Down:
12-Jun-2026 22:40

Time Up:

Log Number: 4511235Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavity histories have been updated:
1L09-7
Username: yoon
Date/Time: 06-12-26_22:45:30
RF Status: Bad
Tuner Status: Good
Comment: C75 Bypassed - filament voltage high fault, unable to get zone back into HV
Special Instructions: Please allow extra time for tuners to catch up when adjusting gradient. Bypass cavity if it gives too many issues.

Maintenance Tag: Component: Other

Log Number: 4511234Logbook(s): 

• ELOG
• RFLOG

Entry Makers: yoonBody: 

1L09-7 filament voltage high, decided to bypass this cavity

Log Number: 4511233Logbook(s): 

• ELOG

Entry Makers: yoonBody: 

cavity wouldnt come back up into RF so I tried an OLT and that worked