Aggregator

Log Number: 4480918Logbook(s): 

• ELOG

Entry Makers: beneschBody: 

stepper motor position and encoder position agree, so linked Ops-PR is likely software. My error. Pot value is stable over last 24 hours.

Log Number: 4480917Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Janak
DATE:             03/28/2026
SHIFT:               Day

The operator has read the following:

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

Log Number: 4480916Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 16559Title:
Hall C: Spectrometer Magnets

Summary:
Troubleshooting of Spectrometer magnetsDuration:
14 minutes

Time Down:
28-Mar-2026 08:00

Time Up:

Log Number: 4480913Logbook(s): 

• ELOG

Entry Makers: kpriceBody: 

Adjutsed -8.16% off design (within spec per setup procedure). Had to turn off beam to hall for this morning's access and didn't grab a pic of the orbit - Hall data will tell us if we're on the right track.

Log Number: 4480908Logbook(s): 

• ELOG

Body: Faster Raster Mask State: (B MAGNETS MASKED) Fast Raster is initialized for 1.41893 GeV Max current is 60 uA Raster was last initialized on 28MAR26 07:53:15
Hall C Raster has been set to width = 3.0 by height = 3.0 Coil Pairs is 1

Log Number: 4480906Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: System UN-Masking for: IonChamber
User: kprice
Areas: HallC

IonChamber Devices:
IIC3P03
IIC3H04
IIC3H07
IIC3H09
IICD307
IICD307A
IICSHMS

Log Number: 4480903Logbook(s): 

• HCLOG
• ELOG

Entry Makers: beneschBody: 

For information: note at the middle right there are three position readbacks: the potentiometer, the encoder, and the stepper motor.

Log Number: 4480902Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl632

Saved: chumphry 03-28-26 07:38:05 {A:i B:5 C:2 E:345 A=BS B=BS C=Tune D=BS 0R08=5.13 No dumps in.

Log Number: 4480900Logbook(s): 

• ELOG
• SLOG

Tags: 

• Autolog

Body: restorelib 3.0.1 Target restore date was 2026-03-28 07:20:39 The output from the myRestore execution was as follows: iocsoftsli3c systemEnum@2026-03-28 07:20 2(2) restored Execute: /usr/csite/certified/bin/ced2Epics -ced ced -A -i iocsoftsli3c (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: 4480901Logbook(s): 

• ELOG

Body: Faster Raster Mask State: (MASKED) Fast Raster is initialized for 1.41893 GeV Max current is 60 uA Raster was last initialized on 28MAR26 05:43:46
Hall C Raster has been set to width = 3.0 by height = 3.0 Coil Pairs is 1

Log Number: 4480899Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: System Masking for: IonChamber
User: kprice
Areas: HallC

IonChamber Devices:
IIC3P03
IIC3H04
IIC3H07
IIC3H09
IICD307
IICD307A
IICSHMS

Log Number: 4480898Logbook(s): 

• ELOG
• LERFLOG

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

Date : 03-28-26
Time : 07:28:33
Day : Saturday
Shift : Day

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

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

Log Number: 4480895Logbook(s): 

• ELOG
• SLOG

Tags: 

• Autolog

Body: restorelib 3.0.1 Target restore date was 2026-03-28 07:20:39 The output from the myRestore execution was as follows: iocsoftsli3c systemEnum@2026-03-28 07:20 2(2) restored Execute: /usr/csite/certified/bin/ced2Epics -ced ced -A -i iocsoftsli3c (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: 4480892Logbook(s): 

• ELOG

Body: Faster Raster Mask State: (B MAGNETS MASKED) Fast Raster is initialized for 1.41893 GeV Max current is 60 uA Raster was last initialized on 28MAR26 05:43:46
Hall C Raster has been set to width = 3.0 by height = 3.0 Coil Pairs is 1

Log Number: 4480887Logbook(s): 

• ELOG

Tags: 

• ShiftSummary

Body:  CEBAF SHIFT LOG Shift Summary

Start of shift: Re-matching at 3C, then checking harps and fopt.

Log Number: 4480886Logbook(s): 

• ELOG

Tags: 

• BeamAccounting

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

Log Number: 4480880Logbook(s): 

• HCLOG
• ELOG

Entry Makers: beneschBody: 

Figure 1 shows beam at 3C20 reads normally with encoder. Pairs of figures 2/3 and 4/5 show that the encoders are giving bad data for 3H07 A/B harps as the traces using harp speed are consistent with the harp traces upstream and the optics design.

Log Number: 4480875Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: Masked Hall C Normal Target FSD

Log Number: 4480872Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: Masked Hall C Normal Target FSD

Log Number: 4480865Logbook(s): 

• ELOG

Body: Faster Raster Mask State: (B MAGNETS MASKED) Fast Raster is initialized for 1.41893 GeV Max current is 60 uA Raster was last initialized on 28MAR26 05:43:46
Hall C Raster has been set to width = 4.0 by height = 4.0 Coil Pairs is 1