Aggregator

Log Number: 4482620Logbook(s): 

• ELOG

Body: 

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

Area.Linacs.South

Total Time: 3.167 mins

Log Number: 4482619Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Schaumloffel
DATE:             04/01/2026
SHIFT:               Swing

The operator has read the following:

Log Number: 4482618Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: 

FudgeIt 5.0 changed the South Linac fudge factor from 1.023 to 1.032.

Log Number: 4482616Logbook(s): 

• ELOG
• CLOG

Tags: 

• Autolog

Body: LEM 9.19 was successfully run for the South Linac on 2026-04-01 16:33:01. The application phase took 00:00:36 to complete.

Log Number: 4482615Logbook(s): 

• ELOG
• CLOG

Tags: 

• Autolog

Body: LEM 9.19 was successfully run for the South Linac on 2026-04-01 16:31:24. The application phase took 00:00:27 to complete.

Log Number: 4482613Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: 

FudgeIt 5.0 changed the South Linac fudge factor from 1.015 to 1.023.

Log Number: 4482611Logbook(s): 

• ELOG
• CLOG

Tags: 

• Autolog

Body: LEM 9.19 was successfully run for the South Linac on 2026-04-01 16:30:28. The application phase took 00:01:09 to complete.

Log Number: 4482610Logbook(s): 

• ELOG
• CLOG

Tags: 

• Autolog

Body: LEM 9.19 was successfully run for the South Linac on 2026-04-01 16:28:17. The application phase took 00:02:26 to complete.

Log Number: 4482607Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: System Masking for: BeamLossMonitor
User: eforman
Areas: All

BeamLossMonitor Devices:
ILM0I07
ILM0L01A
ILM0L01B
ILM0L02
ILM2D00A
ILM2D00B
ILM0L04A
ILM0L04B
ILM0L05
ILM0L06A
ILM0L08
ILM0R01
ILM4D00
ILM0R03
ILM0R04
ILM0R06
ILM0R08
ILM0R09
ILM1L01
ILM1L02
ILM6R08
ILM3S00
ILM7S00
ILM9S00
ILM5S10
ILM5E03
ILM7S01
ILM9A01
ILM3E02
ILM5A01
ILM1A04
ILM1A06
ILM1A09
ILM5A10
ILM1A16
ILM1A19
ILM3R10
ILM9R07
ILM1R09
ILM2L03
ILM5R10
ILM5R05
ILM2L01
ILM2T09
ILM8T0

Log Number: 4482606Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: System UN-Masking for: BeamLossMonitor
User: eforman
Areas: All

BeamLossMonitor Devices:
ILM0I07
ILM0L01A
ILM0L01B
ILM0L02
ILM2D00A
ILM2D00B
ILM0L04A
ILM0L04B
ILM0L05
ILM0L06A
ILM0L08
ILM0R01
ILM4D00
ILM0R03
ILM0R04
ILM0R06
ILM0R08
ILM0R09
ILM1L01
ILM1L02
ILM6R08
ILM3S00
ILM7S00
ILM9S00
ILM5S10
ILM5E03
ILM7S01
ILM9A01
ILM3E02
ILM5A01
ILM1A04
ILM1A06
ILM1A09
ILM5A10
ILM1A16
ILM1A19
ILM3R10
ILM9R07
ILM1R09
ILM2L03
ILM5R10
ILM5R05
ILM2L01
ILM2T09
ILM

Log Number: 4482604Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: System Masking for: BeamLossMonitor
User: eforman
Areas: All

BeamLossMonitor Devices:
ILM0I07
ILM0L01A
ILM0L01B
ILM0L02
ILM2D00A
ILM2D00B
ILM0L04A
ILM0L04B
ILM0L05
ILM0L06A
ILM0L08
ILM0R01
ILM4D00
ILM0R03
ILM0R04
ILM0R06
ILM0R08
ILM0R09
ILM1L01
ILM1L02
ILM6R08
ILM3S00
ILM7S00
ILM9S00
ILM5S10
ILM5E03
ILM7S01
ILM9A01
ILM3E02
ILM5A01
ILM1A04
ILM1A06
ILM1A09
ILM5A10
ILM1A16
ILM1A19
ILM3R10
ILM9R07
ILM1R09
ILM2L03
ILM5R10
ILM5R05
ILM2L01
ILM2T09
ILM8T0

Log Number: 4482598Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 16597Title:
2L09-1 trip / OLT

Summary:
2L09-1 tripped, required OLT to recoverDuration:
20 minutes

Time Down:
01-Apr-2026 15:52

Time Up:

Log Number: 4482596Logbook(s): 

• ELOG
• RFLOG

Body: 

2L03
Removed all jumpers, fixed loose ground connections, tightened every connection and still zone trips on DC Overload Fault. More troubleshooting will resume tomorrow.

Log Number: 4482593Logbook(s): 

• HBLOG
• ELOG
• RADLOG

Entry Makers: eformanBody: 

Log Number: 4482581Logbook(s): 

• ELOG

Entry Makers: bjacobBody: 

Started noticing a periodic energy jump on the 1A SLM. It jolts positions all around the machine (figure 1).

My first instinct is to suspect RF in the NL but nothing was tripping or showed any immediate signs of struggle.

I took some smartRAT snapshots. One when energy was acting up (figure 2) and one when we are running as normal (figure 3).

Log Number: 4482580Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl05

Saved: eforman 04-01-26 15:35:41 {A:i B:5 C:2 E:345 A=BS B=BS C=CW D=BS 0R08=11.94 No dumps in.

Log Number: 4482575Logbook(s): 

• ELOG
• LERFLOG

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

Date : 04-01-26
Time : 15:28:51
Day : Wednesday
Shift : Swing

Crew Chief : Forman
Program Deputy: Malace
Team : X
Arm : Schaumloffel
Designated SSO: Samari
LERF Operator:
Operators : Samari, Schaumloffel

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

Log Number: 4482566Logbook(s): 

• ELOG

Tags: 

• ShiftSummary

Body:  CEBAF SHIFT LOG Shift Summary

Start of shift: 12 uA CW to Hall C

Log Number: 4482565Logbook(s): 

• ELOG

Tags: 

• BeamAccounting

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

Log Number: 4482547Logbook(s): 

• ELOG

Tags: 

• Readme

Entry Makers: LawbjacobBody: 

Lock up was requested by RadCon
Jacob Blackshaw applied the lock while monitored by the procedure author
Steve Kennell applied the RCG Lock
RadCon witnessed the application of the lock