Aggregator

Log Number: 4297414Logbook(s): 

• ELOG

Entry Makers: deirBody: 

Kept tripping off on DETA2 soft faults, even dropping out of RF sometimes. The only soft fault I know that will open the RF switch is an LOPW soft fault. I did not see that nor any other any other faults.

Optimizing the POFF would decrease it by 7 deg (-63 -> -70) but did not help us in recovering the zone.

Ultimately, ended up derating the cavity down to 14 MV/m, decreased the GLOS to 1.85, and walked POFF up in +5 deg steps until the cavity would turn on. Got it back into SELAP (POFF back around -63 deg) and walked it up to 22 MV/m.

Log Number: 4297395Logbook(s): 

• ELOG

Entry Makers: deirBody: 

Changed -18 deg.

Log Number: 4297390Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause13237Title:
2L26-2 tuning

Summary:
Many of the cavities in the zone tripped off and did not want to turn back on. Ran a couple of POFFs on them and worked for most, but not this one.

Log Number: 4297389Logbook(s): 

• ELOG

Entry Makers: shookBody: 

Log Number: 4297388Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause13237Title:
2L26-2 tuning

Summary:
Many of the cavities in the zone tripped off and did not want to turn back on. Ran a couple of POFFs on them and worked for most, but not this one.

Log Number: 4297378Logbook(s): 

• ELOG

Entry Makers: shookBody: 

Cavity has been experiencing multiple trips over the last couple shifts. Trying to calm it down

Log Number: 4297335Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Christian
DATE:             05/06/2024
SHIFT:               Owl

The operator has read the following:

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

Log Number: 4297330Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Shook
DATE:             05/05/2024
SHIFT:               Owl

The operator has read the following:

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

Log Number: 4297315Logbook(s): 

• ELOG
• LERFLOG

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

Date : 05-05-24
Time : 23:16:19
Day : Sunday
Shift : Owl

Crew Chief In Training : Deir
Crew Chief On Duty : Surles-Law
Program Deputy: Ruiz
Team : A
Arm : Christian
SSO: Shook
LERF Operator:
Operators : Surles-Law, Christian, Shook

Log Number: 4297297Logbook(s): 

• ELOG

Tags: 

• ShiftSummary

Body:  CEBAF SHIFT LOG Shift Summary

Start of shift: CW to halls A, B, and C.

Log Number: 4297296Logbook(s): 

• ELOG

Tags: 

• BeamAccounting

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

Log Number: 4297295Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Surles-Law
DATE:             05/05/2024
SHIFT:               Owl

The operator has read the following:

Log Number: 4297243Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: UNMasked Hall C Normal Target FSD

Log Number: 4297242Logbook(s): 

• HCLOG
• ELOG

Entry Makers: yoonBody: 

request 6uA

Log Number: 4297239Logbook(s): 

• ELOG

Body: Calibration ParametersHall:CTarget: LD2 10cmPass: 4Note: NPS sweeper ONCalibrated On:2024-Apr-25 02:58Calibrated By: shookFile:C-2024-04-25_0258_LD2_10cm_Pass-4.hcdIon ChamberExisting Setpoing (rads/hr)New Setpoint (rads/hr)Compton

Log Number: 4297238Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: Masked Hall C Normal Target FSD

Log Number: 4297221Logbook(s): 

• ELOG

Entry Makers: yoonBody: 

no issue recovering

Log Number: 4297208Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: UNMasked Hall C Normal Target FSD

Log Number: 4297207Logbook(s): 

• HCLOG
• ELOG

Entry Makers: yoonBody: 

request 6uA

Log Number: 4297204Logbook(s): 

• ELOG

Body: Calibration ParametersHall:CTarget: 10cm DummyPass: 4Note: Calibrated On:2024-Apr-25 00:06Calibrated By: yoonFile:C-2024-04-25_0006_10cm_Dummy_Pass-4.hcdIon ChamberExisting Setpoing (rads/hr)New Setpoint (rads/hr)Compton3,791