Recent Log Entries

Log Number: 4230808Logbook(s): 

• ELOG

Tags: 

• ShiftSummary

Body:  CEBAF SHIFT LOG Shift Summary

Start of shift: Beam to Hall B.  Hall C down due to

Log Number: 4230807Logbook(s): 

• ELOG

Tags: 

• BeamAccounting

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

Log Number: 4230769Logbook(s): 

• ELOG

Entry Makers: dthomasBody: 

Log Number: 4230748Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause12357Title:
Hall C drift chamber trouble

Summary:
Hall C drift chamber trouble - est.

Log Number: 4230744Logbook(s): 

• HCLOG
• POLOG
• ELOG

Body: 

When production beam currents were restored after the Moller run, the charge asymmetry was about +1600 ppm.

I ran the Hall C charge asymmetry feedback from 16:10 to 16:27 during parity run 13756. We can see that the asymmetry has been brought to zero. The initial HC IA setting was 16500, and the final HC IA setting was 21952.

Log Number: 4230739Logbook(s): 

• HDLOG
• ELOG

Tags: 

• Readme

Entry Makers: eformanBody: 

Hall D Tagger temporarily posted ODH 2 overnight while SSG troubleshoots the system.

Log Number: 4230738Logbook(s): 

• ELOG

Entry Makers: dthomasBody: 

Log Number: 4230737Logbook(s): 

• ELOG

Entry Makers: dthomasBody: 

Log Number: 4230732Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The OPS DRVHs for the following cavities have been updated:
1L08-5
Username: dthomas
Date/Time: 12-06-23_17:15:07
RF Status: Good
Tuner Status: Good
Comment: DRVH=4.400 Lowering ODVH to reduce trips
Previous OPS DRVH: 4.45
Special Instructions:

Log Number: 4230731Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The OPS DRVHs for the following cavities have been updated:
2L13-4
Username: benesch
Date/Time: 12-06-23_17:10:30
RF Status: Good
Tuner Status: Good
Comment: DRVH=10.300 Arc Rate Management four at 10.4, evenly spaced
Previous OPS DRVH: 10.4
Special Instructions:

Log Number: 4230730Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The OPS DRVHs for the following cavities have been updated:
1L08-6
Username: benesch
Date/Time: 12-06-23_17:09:20
RF Status: Good
Tuner Status: Good
Comment: DRVH=5.100 Arc Rate Management four at 5.18, evenly spaced
Previous OPS DRVH: 0
Special Instructions:

Log Number: 4230729Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The OPS DRVHs for the following cavities have been updated:
1L08-5
Username: benesch
Date/Time: 12-06-23_17:08:33
RF Status: Good
Tuner Status: Good
Comment: DRVH=4.450 Arc Rate Management five at 4.53, irregular spacing
Previous OPS DRVH: 0
Special Instructions:

Log Number: 4230723Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause12357Title:
Hall C drift chamber trouble

Summary:
Hall C drift chamber trouble - est.

Log Number: 4230712Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Thomas
DATE:             12/06/2023
SHIFT:               Swing

The operator has read the following:

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

Log Number: 4230711Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Anthony
DATE:             12/06/2023
SHIFT:               Swing

The operator has read the following:

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

Log Number: 4230707Logbook(s): 

• ELOG

Tags: 

• BeamAccounting

Body:  Utilization and Availability Accelerator Beam Time Hour Total Experiment Beam Time Hour Total ABU BANU BNA

Log Number: 4230706Logbook(s): 

• ELOG

Tags: 

• BeamAccounting

Body:  Utilization and Availability Accelerator Beam Time Hour Total Experiment Beam Time Hour Total ABU BANU BNA

Log Number: 4230693Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause12356Title:
iocbd1 loss of comms

Summary:
Lost comms with iocbd1, which is connected to a number of Hall C beam dump PVs.

Log Number: 4230691Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: Destination Masking to: HallB,HallC
User: schoene

Log Number: 4230688Logbook(s): 

• ELOG

Tags: 

• ShiftSummary

Body:  CEBAF SHIFT LOG Shift Summary

Start of shift: xB: 60nA on LD2, xC: BNR for drift chamber tests