Aggregator

Log Number: 4477128Logbook(s): 

• ELOG

Body: 

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

Area.Linacs.North
Area.Linacs.South

Total Time: 3.150 mins

Log Number: 4477127Logbook(s): 

• ELOG

Entry Makers: yoonBody: 

Log Number: 4477126Logbook(s): 

• POLOG
• ELOG

Body: 

- MOLLER studies of electrical pickup of real-time helicity signal.

Log Number: 4477125Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Schaumloffel
DATE:             03/15/2026
SHIFT:               Swing

The operator has read the following:

Log Number: 4477124Logbook(s): 

• ELOG

Entry Makers: yoonBody: 

Log Number: 4477123Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Yoon
DATE:             03/15/2026
SHIFT:               Swing

The operator has read the following:

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

Log Number: 4477122Logbook(s): 

• ELOG

Entry Makers: janakBody: 

Used ditherer and 1L19-3 to check Horizontal dispersion in 1A and 2L. Offset the cavity by 0.7 MV/m and adjusted MQB1A11 and MQB1A21 to fit to the rels.

Log Number: 4477121Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl05

Saved: eforman 03-15-26 16:07:23 {A:i B:5 C:2 E:345 A=Tune B=BS C=BS D=BS 0R08=6.39 2R dump in. A B C dump(s) in.

Log Number: 4477120Logbook(s): 

• ELOG

Entry Makers: bjacobBody: 

The dispersion pattern is breathing quite significantly and is basically unusable. I've tried to capture how much the 30 Hz bpms differ in the two attached images below. We attempted lowering the GSETs of the 1L21 cavities to make sure that RF stability isn't the issue and it did not help. Maybe another timing issue?

Log Number: 4477118Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: 

FudgeIt 5.0 changed the North Linac fudge factor from 0.977 to 0.983.

Log Number: 4477117Logbook(s): 

• ELOG
• SLOG

Tags: 

• Autolog

Body: restorelib 3.0.1 Target restore date was 2026-03-15 15:29:57 The output from the myRestore execution was as follows: iocsoftw3spce systemEnum@2026-03-15 15:29 2(2) restored Execute: /usr/csite/certified/bin/ced2Epics -ced ced -A -i iocsoftw3spce (success) PVs modified: 0 PVs modified: 0 PVs modified: 0 PVs modified: 0 PVs modified: 0 PVs modified: 0 PVs modified: 0 Procedure return status: Success

Log Number: 4477116Logbook(s): 

• ELOG
• CLOG

Tags: 

• Autolog

Body: LEM 9.19 was successfully run for the North Linac on 2026-03-15 15:35:37. The application phase took 00:00:07 to complete.

Log Number: 4477115Logbook(s): 

• ELOG
• LERFLOG

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

Date : 03-15-26
Time : 15:20:37
Day : Sunday
Shift : Swing

Crew Chief : Forman
Program Deputy: Roblin
Team : F
Arm : Yoon
Designated SSO: Schaumloffel
LERF Operator:
Operators : Schaumloffel, Yoon

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

Log Number: 4477114Logbook(s): 

• ELOG
• CLOG

Tags: 

• Autolog

Body: LEM 9.19 was successfully run for the North Linac on 2026-03-15 15:32:33. The application phase took 00:00:07 to complete.

Log Number: 4477113Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: 

FudgeIt 5.0 changed the North Linac fudge factor from 0.982 to 0.977.

Log Number: 4477112Logbook(s): 

• ELOG
• CLOG

Tags: 

• Autolog

Body: LEM 9.19 was successfully run for the North Linac on 2026-03-15 15:30:10. The application phase took 00:03:33 to complete.

Log Number: 4477111Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The OPS DRVHs for the following cavities have been updated:
1L21-4
Username: janak
Date/Time: 03-15-26_15:25:53
RF Status: Good
Tuner Status: Good
Comment: DRVH=4.000 ODVH changed due to Special Instructions/Program Requirements
Previous OPS DRVH: 8.9
Special Instructions:

Log Number: 4477110Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The OPS DRVHs for the following cavities have been updated:
1L21-3
Username: janak
Date/Time: 03-15-26_15:25:32
RF Status: Good
Tuner Status: Good
Comment: DRVH=4.000 ODVH changed due to Special Instructions/Program Requirements
Previous OPS DRVH: 8.8
Special Instructions:

Log Number: 4477109Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The OPS DRVHs for the following cavities have been updated:
1L21-2
Username: janak
Date/Time: 03-15-26_15:25:08
RF Status: Good
Tuner Status: Good
Comment: DRVH=4.000 ODVH changed due to Special Instructions/Program Requirements
Previous OPS DRVH: 6.4
Special Instructions:

Log Number: 4477108Logbook(s): 

• ELOG

Tags: 

• ShiftSummary

Body:  CEBAF SHIFT LOG Shift Summary

Start of shift: Beam to 3R