Aggregator

Log Number: 4515537Logbook(s): 

• ELOG
• LERFLOG

Body: The following entry was removed from the Accelerator Bypassed-Interlocks Log (ABIL) Tag # 9793 Device: OM206 Function: Oxygen Monitor Location: LERF RF Gallery - Zone 03 Purpose: failing sensor.

Log Number: 4515533Logbook(s): 

• ELOG

Body: 

RM09 will be powered down.
Three detectors are due; 8hrs is a conservative time frame for a worse case scenario.
If we don't encounter any major issues, the task will be performed in approximately half of that time.

Log Number: 4515534Logbook(s): 

• ELOG

Entry Makers: janakBody: 

9:38 - 9:55 -> 2L15-7 SOSed, performed OLT

Log Number: 4515531Logbook(s): 

• ELOG

Entry Makers: janakBody: 

Cavity was SOSing, performed OLT. Recovered 300 Watts of FWD PWR

Log Number: 4515529Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 17256Title:
2L15-7 Open loop tune

Summary:
Cavity was SOSing and tripping beam, performed OLT and sent back.Duration:
17 minutes

Time Down:
23-Jun-2026 09:38

Time Up:

Log Number: 4515528Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 17256Title:
2L15-7 Open loop tune

Summary:
Cavity was SOSing and tripping beam, performed OLT and sent back.Duration:
17 minutes

Time Down:
23-Jun-2026 09:38

Time Up:

Log Number: 4515530Logbook(s): 

• ELOG

Entry Makers: chumphryBody: 

Log Number: 4515523Logbook(s): 

• ELOG

Entry Makers: bjacobBody: 

This issue was resolved @~1120 on 06/22/26. After troubleshooting it was found that an IP Pack on the ioc needed to be swapped. Please see attached ATLis to see more detailed explanation of the issues and fixes.

Log Number: 4515520Logbook(s): 

• ELOG
• SLOG

Body: 

At 7am I received a call that they were having communication issues with rack W202B13.

I checked out iocwa2mag and found everything working as expected.

I informed the control room at 7:30 that this was not a software issue.

Log Number: 4515519Logbook(s): 

• ELOG

Body: 

Please specify which CARM will be powered down.

Looking to SSG to confirm if we will be able to run beam in the Injector, Mode M0, with the specified CARM powered down.

Is 8hrs an accurate estimate for performing this task?

Log Number: 4515514Logbook(s): 

• ELOG

Entry Makers: chumphry

Log Number: 4515512Logbook(s): 

• ELOG
• INCLOG
• RFLOG
• SRFLOG

Body: 

Per Michael McCaughan slow trip point for VIP1L25B pump has been raised from 1e-7 to 5e-7 in hopes to reduce the needless RF trips occurring at 1L25.
We will continue to monitor to see if more changes will be needed to prevent trips.

Log Number: 4515509Logbook(s): 

• ELOG

Entry Makers: chumphryBody: 

Hall A: OFF
Hall D: No beam due to MZAAS04 issue

Log Number: 4515498Logbook(s): 

• ELOG

Tags: 

• MCC8am

Body:  CEBAF SHIFT LOG Shift Summary

Start of shift: Down for W202B13 issues.

Log Number: 4515496Logbook(s): 

• ELOG

Body: 

While this initially appeared to be an energy shift, it ultimately looks like it was a combination of a little phase slipping in the injector coupled with the injector orbit lock attempting to lock only Hall B beam while C was down and the locks were inadvertently left unhalted. This tuning downtime turned into a blocked downtime before we fully understood what was happening; in hindsight it almost certain that the issue was caused mostly by the errant locks, though it wasn't clear in the moment.

Log Number: 4515495Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Janak
DATE:             06/23/2026
SHIFT:               Day

The operator has read the following:

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

Log Number: 4515494Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Humphry
DATE:             06/23/2026
SHIFT:               Day

The operator has read the following:

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

Log Number: 4515490Logbook(s): 

• HCLOG
• ELOG

Entry Makers: victorc

Log Number: 4515489Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl05

Saved: bjacob 06-23-26 08:13:09 {A:i B:1 C:3 E:1060 A=BS B=CW C=CW D=BS 0R08=39.93 No dumps in. Start of Day Shift.

Log Number: 4515483Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: UNMasked Hall C Normal Target FSD