Aggregator

Log Number: 4525838Logbook(s): 

• ELOG
• SRFLOG

Body: 

No major update.

Log Number: 4525837Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: 

FudgeIt 5.0 changed the North Linac fudge factor from 0.99 to 0.993.

Log Number: 4525836Logbook(s): 

• ELOG

Body: 

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

Area.Linacs.North

Total Time: 3.033 mins

Log Number: 4525835Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavity histories have been updated:
Zone 1L21
Username: alexs
Date/Time: 07-17-26_15:55:24
RF Status: Good
Comment: AC Contactor in front panel not closing very well. Exercising the AC switch on the front panel 5-10 times tends to clear HVON interlock issue for now
Special Instructions:

Maintenance Tag: Component: Other

Log Number: 4525834Logbook(s): 

• ELOG
• CLOG

Tags: 

• Autolog

Body: LEM 9.19.5 was successfully run for the North Linac on 2026-07-17 15:54:39. The application phase took 00:00:07 to complete.

Log Number: 4525833Logbook(s): 

• ELOG
• CLOG

Tags: 

• Autolog

Body: LEM 9.19.5 was unsuccessfully run for the North Linac on 2026-07-17 15:52:18. The operation terminated after 00:02:16 with the following results.
Cavity summarySuccess: 199 Abort: 1 Fail: 0

Log Number: 4525832Logbook(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: 4525831Logbook(s): 

• ELOG
• CLOG

Tags: 

• Autolog

Body: LEM 9.19.5 was unsuccessfully run for the North Linac on 2026-07-17 15:49:52. The operation terminated after 00:00:02 with the following results.
Cavity summarySuccess: 0 Abort: 200 Fail: 0

Log Number: 4525830Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: Destination Masking to: HallB,HallC,HallD
User: dthomas

Log Number: 4525829Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: Destination Masking to: HallB,HallC,HallD
User: eforman

Log Number: 4525828Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 17428Title:
1L21 breaker trip

Summary:
We are attempted to recover from the SAM, issue with 1L21, resetting breakerDuration:
45 minutes

Time Down:
17-Jul-2026 15:00

Tim

Log Number: 4525827Logbook(s): 

• ELOG
• LERFLOG

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

Date : 07-17-26
Time : 15:37:43
Day : Friday
Shift : Swing

Crew Chief : Forman
Program Deputy: KLarrieu
Team : X
Arm : Shriner
Designated SSO: Anthony
LERF Operator:
Operators : Anthony, Shriner

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

Log Number: 4525826Logbook(s): 

• ELOG

Entry Makers: ywangBody: 

After the 4D spectrometer dipole is fixed, optimized the injector to the ILD:
Fig.1: C beam, 80uA
Figs. 2 & 3: B's and D's orbits relative to C's, respectively
Figs. 4 & 5: B beam, 500nA, and D beam, 10uA, respectively
4D spectrometer dipole behaves differenly than before. Had to put some field to it in order to transpot beam well and not rail the correctors in the region (figs. 6 & 7).

Log Number: 4525825Logbook(s): 

• ELOG

Tags: 

• ShiftSummary

Body:  CEBAF SHIFT LOG Shift Summary

Start of shift: Beam off, NL and SL in Restricted Access

Log Number: 4525819Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 17428Title:
1L21 breaker trip

Summary:
We are attempted to recover from the SAM, issue with 1L21, resetting breakerDuration:
18 minutes

Time Down:
17-Jul-2026 15:00

Tim

Log Number: 4525818Logbook(s): 

• ELOG

Tags: 

• BeamAccounting

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

Log Number: 4525817Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl06

Saved: ywang 07-17-26 15:13:19 {A:i B:1 C:4 E:1060 A=BS B=BS C=Tune D=BS 0R08=0.00 0R08 dump in.

Log Number: 4525816Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl06

Saved: ywang 07-17-26 15:02:15 {A:i B:1 C:4 E:1060 A=BS B=BS C=Tune D=BS 0R08=0.00 0R08 dump in.

Log Number: 4525815Logbook(s): 

• ELOG

Body: 

Below are images of flushing debris from the Arc 5 dipoles, again there is chlorine in all samples. I wonder if that is from the Scale Break solution? The carbon peak can be largely ignored since that is the tape on the aluminum sample holder.

Log Number: 4525814Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: System UN-Masking for: BeamLossMonitor
User: bjacob
Areas: Injector

BeamLossMonitor Devices:
ILM0I07
ILM0L01A
ILM0L01B
ILM0L02
ILM2D00A
ILM2D00B
ILM0L04A
ILM0L04B
ILM0L05
ILM0L06A
ILM0L08
ILM0R01
ILM4D00
ILM0R03
ILM0R04
ILM0R06
ILM0R08
ILM0R09