Aggregator

Log Number: 4504155Logbook(s): 

• ELOG

Entry Makers: janakBody: 

Noticed over the weekend that rates in these regions were sensitive to GP changes, and being slightly off crest reduced them quite a bit.

Today with not C beam, just B & D we observed that having GP on crest achieved the best results.

Log Number: 4504153Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 17007Title:
Hall C: SHMS Troubleshooting

Summary:
Troubleshooting SHMS problemDuration:
4 minutes

Time Down:
25-May-2026 09:28

Time Up:

Log Number: 4504152Logbook(s): 

• DCLOG
• ELOG

Entry Makers: janakBody: 

Struggled to take setpoint, had to manually adjust the slider +/- about an amp, and then it was still slightly mismatched. Cycled and came back though. Did not swap trim card.

Log Number: 4504147Logbook(s): 

• ELOG

Entry Makers: janakBody: 

IBC3H05 had a jump in temperature at about 9:00, not sure if it was an accurate readback considering how quickly it jumped and then fell back to normal levels.

Log Number: 4504118Logbook(s): 

• ELOG

Entry Makers: chumphryBody: 

Log Number: 4504117Logbook(s): 

• ELOG

Entry Makers: chumphryBody: 

Since SHMS is down Hall doing a current scan.

Log Number: 4504112Logbook(s): 

• ELOG

Entry Makers: chumphryBody: 

Log Number: 4504102Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 17006Title:
Beam Tuning

Summary:
Beam tuning, looking for problem orbitDuration:
23 minutes

Time Down:
25-May-2026 08:28

Time Up:
25-May-2026 08:51

Log Number: 4504091Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 17006Title:
Beam Tuning

Summary:
Beam tuning, looking for problem orbitDuration:
3 minutes

Time Down:
25-May-2026 08:28

Time Up:

Log Number: 4504090Logbook(s): 

• ELOG

Tags: 

• MCC8am

Body:  CEBAF SHIFT LOG Shift Summary

Start of shift: xBCD Beam

Log Number: 4504082Logbook(s): 

• ELOG

Entry Makers: janakBody: 

iocbcm had a Memory Block alarm. Guidance said to simply reboot the IOC, after doing that everything came back fine.

This also reset values for Max Juice and several BLA masking values.

Log Number: 4504080Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl632

Saved: chumphry 05-25-26 08:15:56 {A:i B:5 C:3 E:345 A=BS B=BS C=BS D=BS 0R08=0.00 No dumps in.

Log Number: 4504079Logbook(s): 

• ELOG
• SLOG

Tags: 

• Autolog

Body: restorelib 3.0.1 Target restore date was 2026-05-25 08:11:04 The output from the myRestore execution was as follows: iocbcm <NOTE> BLA: Provided macro *IOC* is never used BLA Execute: burtwb -f /a/opsuser/mccops/burt/REBOOT/bcmVme/snap/bcmVme.snap (success) bcmVme@2026-05-25 08:11 20(20) restored Procedure return status: Success systemEnum@2026-05-25 08:11 2(2) restored Execute: /usr/csite/certified/bin/ced2Epics -ced ced -A -i iocbcm (success) PVs modified: 0 PVs modified: 0 PVs modified: 0 PVs modified: 0 PVs modi

Log Number: 4504081Logbook(s): 

• HCLOG
• ELOG

Entry Makers: dchriBody: 

Log Number: 4504073Logbook(s): 

• HCLOG
• ELOG

Entry Makers: bjacobBody: 

Doing a current scan, going up to 50 uA. Their ion chambers and max juice have been set to 50 uA to accommodate that.

Log Number: 4504072Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Humphry
DATE:             05/25/2026
SHIFT:               Day

The operator has read the following:

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

Log Number: 4504067Logbook(s): 

• ELOG

Body: Calibration ParametersHall:CTarget:Carbon 3%Pass:3Note:Calibrated On:2026-May-25 08:00Calibrated By:dchriFile:C-2026-05-25_0800_Carbon_3__Pass-3.hcdIon ChamberExisting Setpoing (rads/hr)New Setpoint (rads/hr)Compton20,0002

Log Number: 4504062Logbook(s): 

• POLOG
• ELOG

Entry Makers: suleimanBody: 

Halls B and D running CW - Figures 1-3.

Figure 1: shows sudden jump in laser position on camera, is this for real? these happen about once per minute on average for a duration much less than 0.1 seconds. Figure 3 shows a nominal one.

Log Number: 4504060Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: UNMasked Hall C Normal Target FSD

Log Number: 4504058Logbook(s): 

• ELOG
• LERFLOG

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

Date : 05-25-26
Time : 07:42:32
Day : Monday
Shift : Day

Crew Chief : Blackshaw
Program Deputy: Saitiniyazi
Team : E
Arm : Janak
Designated SSO: Humphry
LERF Operator:
Operators : Humphry, Janak

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