Aggregator

Log Number: 4486617Logbook(s): 

• ELOG

Entry Makers: chumphryBody: 

Log Number: 4486615Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl632

Saved: chumphry 04-12-26 07:29:21 {A:i B:5 C:2 E:345 A=BS B=BS C=CW D=BS 0R08=3.81 No dumps in.

Log Number: 4486614Logbook(s): 

• ELOG
• LERFLOG

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

Date : 04-12-26
Time : 07:27:33
Day : Sunday
Shift : Day

Crew Chief : Humphry
Program Deputy: Ogur
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: 4486608Logbook(s): 

• ELOG

Tags: 

• ShiftSummary

Body:  CEBAF SHIFT LOG Shift Summary

Start of shift: Sending CW to Hall C. Had a few magnets mismatch.

Log Number: 4486607Logbook(s): 

• ELOG

Tags: 

• BeamAccounting

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

Log Number: 4486602Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 16707Title:
QE

Summary:
Taking daily QE measurement Duration:
8 minutes

Time Down:
12-Apr-2026 06:14

Time Up:
12-Apr-2026 06:22

Log Number: 4486601Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: System UN-Masking for: CryoModule
User: victorc
Areas: NorthLinac SouthLinac

CryoModule Devices:
1L14
1L03
1L02
1L04
1L05
1L07
1L06
1L08
1L09
1L10
1L11
1L12
1L15
1L13
1L16
1L19
1L17
1L18
1L20
1L21
1L22
1L23
1L24
1L25
1L26
2L14
2L03
2L02
2L04
2L05
2L07
2L06
2L08
2L11
2L09
2L10
2L12
2L15
2L13
2L16
2L19
2L17
2L18
2L20
2L21
2L22
2L23
2L24
2L25
2L26

Log Number: 4486600Logbook(s): 

• POLOG
• ELOG

Body: Spot Location: (13250,19250), Charge: 11.718444999999996

Laser Wavelength Atten Setting Laser Power Current HV PS Current QE PV Updated? Update Time/Reason Not Updated (nm) (W) (uA)</

Log Number: 4486599Logbook(s): 

• ELOG

Entry Makers: kpriceBody: 

not bad.

Log Number: 4486595Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 16707Title:
QE

Summary:
Taking daily QE measurement Duration:
1 minute

Time Down:
12-Apr-2026 06:14

Time Up:
Category:

Log Number: 4486594Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: System Masking for: CryoModule
User: victorc
Areas: NorthLinac SouthLinac

CryoModule Devices:
1L14
1L03
1L02
1L04
1L05
1L07
1L06
1L08
1L09
1L10
1L11
1L12
1L15
1L13
1L16
1L19
1L17
1L18
1L20
1L21
1L22
1L23
1L24
1L25
1L26
2L14
2L03
2L02
2L04
2L05
2L07
2L06
2L08
2L11
2L09
2L10
2L12
2L15
2L13
2L16
2L19
2L17
2L18
2L20
2L21
2L22
2L23
2L24
2L25
2L26

Log Number: 4486583Logbook(s): 

• DCLOG
• ELOG

Entry Makers: victorcBody: 

Recently started to frequently mismatch. Always retakes setpoint fine when asked.

This is an Arc 9 lock corrector for whomever cares.

E101B13, channel 21, 10 Amp

Log Number: 4486582Logbook(s): 

• DCLOG
• ELOG

Entry Makers: victorcBody: 

Log Number: 4486580Logbook(s): 

• HCLOG
• ELOG

Entry Makers: victorcBody: 

Log Number: 4486579Logbook(s): 

• ELOG

Entry Makers: jhowardBody: 

When we tried to send back to the Hall after they finished setting up, we were tripping BLA immediately. Sent tune beam to the 1R and found energy was way off and the beam spot looked squished. We had to adjust the NL GP almost +6 degrees to get back most of the energy. Checked SL GP too, and that was adjusted -2 degrees. Checked Pathlength to C dumplet, but that looked good.

We were able to send back to the Hall after pulling the dumplets.

Log Number: 4486576Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 16706Title:
Phase seems to have slipped in the North

Summary:
After Hall C finished their target/config change, we were unable to get beam out of the injector. Checked GP (adjusted and fixed) and path length.

Log Number: 4486575Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 16706Title:
Phase seems to have slipped in the North

Summary:
After Hall C finished their target/config change, we were unable to get beam out of the injector. Checked GP (adjusted and fixed) and path length.

Log Number: 4486574Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 16705Title:
Hall C configuration change

Summary:
SHMS/HMS adjustments w/ target change.Duration:
37 minutes

Time Down:
12-Apr-2026 03:01

Time Up:
12-Apr-2026 03

Log Number: 4486573Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: UNMasked Hall C Normal Target FSD

Log Number: 4486570Logbook(s): 

• ELOG

Body: Calibration ParametersHall:CTarget: Loop 3 4cmPass: 2Note: SHMS angle -10.67,current -396.1Calibrated On:2026-Mar-31 17:58Calibrated By: yoonFile:C-2026-03-31_1758_Loop_3_4cm_Pass-2.hcdIon ChamberExisting Setpoing (rads/hr)New Setpoint (rads/hr)