Aggregator

Log Number: 4287901Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl05

Saved: lrichard 04-24-24 08:51:50 {A:2 B:5 C:4 E:1047 A=CW B=CW C=CW D=BS 0R08=30.15 No dumps in.

Log Number: 4287894Logbook(s): 

• POLOG
• ELOG

Entry Makers: suleimanBody: 

With 60 uA from the Gun, 30 uA make it to the Halls, 13 uA are lost on Apertures (A1, A2, MS, and A3). The remaining 17 uA are unaccounted for. Maybe lost at the entrance of HWien.

Checking vacuum, it's hard to see where the beam loss is. But this is a baked beamline, this could be one reason.

Log Number: 4287885Logbook(s): 

• ELOG

Entry Makers: schoeneBody: 

Took setpoint and cycled.

Log Number: 4287882Logbook(s): 

• ELOG

Tags: 

• MCC8am

Body:  CEBAF SHIFT LOG Shift Summary

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

Log Number: 4287879Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR IN TRAINING SIGN IN FORM OPERATOR:    Shenenberger
DATE:           04/24/2024
SHIFT:             Day
MENTOR:         Surles-Law

The operator has read the following:

Log Number: 4287877Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Blackshaw
DATE:             04/24/2024
SHIFT:               Day

The operator has read the following:

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

Log Number: 4287876Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Schoene
DATE:             04/24/2024
SHIFT:               Day

The operator has read the following:

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

Log Number: 4287851Logbook(s): 

• ELOG

Tags: 

• ShiftSummary

Body:  CEBAF SHIFT LOG Shift Summary

Start of shift: 

Log Number: 4287849Logbook(s): 

• ELOG
• LERFLOG

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

Date : 04-24-24
Time : 07:28:26
Day : Wednesday
Shift : Day

Crew Chief : Richardson
Program Deputy: Gal
Team : X
Arm : Blackshaw
Designated SSO: Schoene
LERF Operator:
Operators : Blackshaw, Schoene, Shenenberger

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

Log Number: 4287850Logbook(s): 

• HBLOG
• ELOG

Entry Makers: dchriBody: 

Hall B ready for production

Halo's have been brought back to their previous trip limit and time range settings

Log Number: 4287848Logbook(s): 

• HBLOG
• ELOG

Entry Makers: dchriBody: 

Injector interceptions are high

Hall B attenuator is high to make 70nA
Previously attenuator was at ~230 to make 70nA

Hall B Attenuator limits has been taken from 500 to 600 for headroom

Log Number: 4287845Logbook(s): 

• ELOG

Tags: 

• ShiftSummary

Body:  CEBAF SHIFT LOG Shift Summary

Start of shift: Continuation of 4th pass setup to Hall C.

Log Number: 4287844Logbook(s): 

• ELOG

Tags: 

• BeamAccounting

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

Log Number: 4287843Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Deir
DATE:             04/24/2024
SHIFT:               Owl

The operator has read the following:

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

Log Number: 4287820Logbook(s): 

• ELOG

Entry Makers: lawBody: 

*Beam to Halls A, B, and C.

*Wien angle changed earlier today from 0deg to -39deg. Hall C did a pass change from 3 to 4.

*Injector ioc issues with in3 showing unresolved in alarm handler but all elements attached to the ioc produce legit readbacks.

Log Number: 4287819Logbook(s): 

• ELOG

Entry Makers: deirBody: 

When trying to do an ion chamber calibration to xC up to 30 uA (production up to 40 uA on this target) we started getting instantaneous loss BLA trips at 22 uA and ILM4D00 trips. ILM3C12A was also elevated but not causing any trips at the time. I believe it would become an issue before the hall got up to 40 uA.

Started off nudging NL gang phase a bit to see if I could reduce the activity at ILM4D00, which was a bit successful. This also helped reduced ILM3C12A.

Log Number: 4287817Logbook(s): 

• ELOG

Entry Makers: shookBody: 

Cycled and took setpoint

Log Number: 4287815Logbook(s): 

• HBLOG
• ELOG

Entry Makers: dchriBody: 

After Harp scans performed and confirmed good
After Hall B Moller Run
After Hall B Halo's unmasked and at requested trip limits

Tagger DeGaussed and OFF
Tagger disabled in alarm handler

Log Number: 4287813Logbook(s): 

• ELOG

Body: HALLB=>MAGNETS=>BOXES=>TAGGERB has been disabled in alarm handler

After moller

Log Number: 4287811Logbook(s): 

• HBLOG
• ELOG

Entry Makers: dchriBody: 

After Harp scans performed and confirmed good
After Hall B Moller Run

Hall B requested Halo's to be unmasked and set Trip Limits to 1000000 Hz and Time Range to 50 ms