Aggregator

Log Number: 4408023Logbook(s): 

• ELOG

Entry Makers: mockBody: 

.

Log Number: 4408022Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Schoene
DATE:             06/29/2025
SHIFT:               Day

The operator has read the following:

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

Log Number: 4408021Logbook(s): 

• ELOG

Body: Calibration ParametersHall:DTarget: JD80-212 80um 0/90 degPass: 5.5Note: Calibrated On:2025-Apr-29 12:54Calibrated By: mmerzFile:D-2025-04-29_1254_JD80-212_80um_0_90_deg_Pass-5.5.hcdIon ChamberExisting Setpoing (rads/hr)New Setpoint (rads/hr)

Log Number: 4408017Logbook(s): 

• ELOG

Entry Makers: mockBody: 

Took setpoint and cycled without issue.

Log Number: 4408006Logbook(s): 

• ELOG

Entry Makers: shookBody: 

We got an fsd trip on BSY_3 Channel:3 which has vacuum valves VBV2C00A and VBV2C20 on it. Neither one faulted or closed, not sure what caused it.

Log Number: 4407980Logbook(s): 

• ELOG
• LERFLOG

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

Date : 06-29-25
Time : 07:10:44
Day : Sunday
Shift : Day

Crew Chief In Training : Schoene
Crew Chief On Duty : Mock
Program Deputy: Nissen
Team : B
Arm : Shenenberger
LERF Operator:
Operators : Mock, Barker, Shenenberger

Log Number: 4407976Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl632

Saved: mock 06-29-25 07:10:51 {A:5 B:5 C:5 E:1060 A=CW B=CW C=CW D=CW 0R08=21.39 No dumps in. Start of day shift.

Log Number: 4407975Logbook(s): 

• ELOG
• LERFLOG

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

Date : 06-29-25
Time : 07:07:56
Day : Sunday
Shift : Day

Crew Chief : Mock
Program Deputy: Nissen
Team : B
A crew chief in training will be stamping in.
Arm : Humphry
Designated SSO: Shenenberger
LERF Operator:
Operators : Humphry, Shenenberger

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

Log Number: 4407974Logbook(s): 

• ELOG

Tags: 

• ShiftSummary

Body:  CEBAF SHIFT LOG Shift Summary

Start of shift: Beam to A, B, and C.

Log Number: 4407973Logbook(s): 

• ELOG

Tags: 

• BeamAccounting

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

Log Number: 4407963Logbook(s): 

• ELOG

Body: Calibration ParametersHall:DTarget: 4.5x10-4 Al 40umPass: 5.5Note: Calibrated On:2025-Apr-06 05:52Calibrated By: shrinerFile:D-2025-04-06_0552_4.5x10-4_Al_40um_Pass-5.5.hcdIon ChamberExisting Setpoing (rads/hr)New Setpoint (rads/hr)East Wal

Log Number: 4407957Logbook(s): 

• HDLOG
• ELOG

Entry Makers: dthomasBody: 

Log Number: 4407953Logbook(s): 

• ELOG

Body: Calibration ParametersHall:DTarget: 4.5x10-4 Al 40umPass: 5.5Note: Calibrated On:2025-Apr-06 05:52Calibrated By: shrinerFile:D-2025-04-06_0552_4.5x10-4_Al_40um_Pass-5.5.hcdIon ChamberExisting Setpoing (rads/hr)New Setpoint (rads/hr)East Wal

Log Number: 4407954Logbook(s): 

• ELOG

Entry Makers: dthomasBody: 

Log Number: 4407951Logbook(s): 

• ELOG

Body: Calibration ParametersHall:DTarget: JD80-212 80um 0/90 degPass: 5.5Note: Calibrated On:2025-Apr-29 12:54Calibrated By: mmerzFile:D-2025-04-29_1254_JD80-212_80um_0_90_deg_Pass-5.5.hcdIon ChamberExisting Setpoing (rads/hr)New Setpoint (rads/hr)

Log Number: 4407918Logbook(s): 

• ELOG

Entry Makers: dthomasBody: 

Log Number: 4407888Logbook(s): 

• ELOG

Entry Makers: dthomasBody: 

1L23-8 quenching kept taking down whole zone HV and an instance of 1L24 HV.
We were able to quickly recover 1L24 cavs and most of 1L23, but cavity 8 kept quenching,

Multiple POffs to no avail, finally derated 2MeV, along with NL LEM, 7L steering, and PL.

Log Number: 4407875Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 15054Title:
1L24-8 derate, NL LEM, 7L steering, PL

Summary:
After 1L24-8 wouldn't stop quenching with usual tuning methods, we derated the cavity by 2MeV. Then NL LEM 2x, and had to do some steering in 7L vertical.

Log Number: 4407876Logbook(s): 

• ELOG

Entry Makers: shookBody: 

Log Number: 4407874Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 15054Title:
1L24-8 derate, NL LEM, 7L steering, PL

Summary:
After 1L24-8 wouldn't stop quenching with usual tuning methods, we derated the cavity by 2MeV. Then NL LEM 2x, and had to do some steering in 7L vertical.