Aggregator

Log Number: 4484766Logbook(s): 

• ELOG

Entry Makers: alexsBody: 

After the mismatch, cycled the arc7 box supply, then all east arc supplies, then all east arc trims. Beam wasn't making it to the 3R dumplette after returning beam, so steered relative orbits back to zero. What this cycling did to downstream orbits remains to be seen. We'll find out once the 3E match is complete.

Log Number: 4484765Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 16666Title:
MXC7S06 shunt mismatch

Summary:
MXC7S06 shunt mismatched and all East Arc box supplies and trims needed to be cycled.

Log Number: 4484764Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 16666Title:
MXC7S06 shunt mismatch

Summary:
MXC7S06 shunt mismatched and all East Arc box supplies and trims needed to be cycled.

Log Number: 4484762Logbook(s): 

• ELOG

Body: 

HYST AREA Version 7-0 has successfully cycled the following:

Area.Arcs.Arc1.Spreader
Area.Arcs.Arc1.Arc
Area.Arcs.Arc1.Recombiner
Area.Arcs.Arc1.Extraction
Area.Arcs.Arc3.Spreader
Area.Arcs.Arc3.Arc
Area.Arcs.Arc3.Recombiner
Area.Arcs.Arc3.Extraction
Area.Arcs.Arc5.Spreader
Area.Arcs.Arc5.Arc
Area.Arcs.Arc5.Recombiner
Area.Arcs.Arc5.Extraction
Area.Arcs.Arc7.Spreader
Area.Arcs.Arc7.Arc
Area.Arcs.Arc7.Recombiner
Area.Arcs.Arc7.Extraction
Area.Arcs.Arc9.Spreader
Area.Arcs.Arc9.Arc

Log Number: 4484761Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: 

The following box supplies were CYCLED by version 2-16 of the Box Supply Cycling Script:
ARC1A Ramp Rate = 7.893 A/s
ARC3A Ramp Rate = 9.272 A/s
ARC5A Ramp Rate = 9.280 A/s
ARC7A Ramp Rate = 9.277 A/s
ARC9A Ramp Rate = 9.300 A/s
RSEP9A Ramp Rate = 9.166 A/s

Log Number: 4484760Logbook(s): 

• ELOG

Entry Makers: shrinerBody: 

walked setpoint down to 4.463 and back up to the original value of 8.463. now cycling east box supplies and trims.

Log Number: 4484759Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: 

The following box supplies were CYCLED by version 2-16 of the Box Supply Cycling Script:
ARC1A Ramp Rate = 7.400 A/s
ARC3A Ramp Rate = 9.272 A/s
ARC5A Ramp Rate = 9.280 A/s
ARC9A Ramp Rate = 8.810 A/s
RSEP9A Ramp Rate = 9.166 A/s

Log Number: 4484758Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: 

The following box supplies were CYCLED by version 2-16 of the Box Supply Cycling Script:
ARC7A Ramp Rate = 9.277 A/s

Log Number: 4484757Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Shenenberger
DATE:             04/07/2026
SHIFT:               Swing

The operator has read the following:

Log Number: 4484755Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Shriner
DATE:             04/07/2026
SHIFT:               Swing

The operator has read the following:

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

Log Number: 4484754Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Anthony
DATE:             04/07/2026
SHIFT:               Swing

The operator has read the following:

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

Log Number: 4484742Logbook(s): 

• ELOG
• BTLOG

Body: Emittance Measurement: IHA3E01 Y-plane
qsUtility zigzag_dataColletor V7-34
HOSTNAME: opsl03 CED WORKSPACE: OPS CED LOGIN KEY: pro

Log Number: 4484741Logbook(s): 

• ELOG

Entry Makers: bbarkerBody: 

Hall B tune beam was being sent and we had this Hall C ion chamber trip FSD. C dumplett was inserted when this happened. The signal spike can be seen on the other Hall C ion chambers too although with varying intensity...weird

Log Number: 4484739Logbook(s): 

• ELOG
• LERFLOG

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

Date : 04-07-26
Time : 15:21:52
Day : Tuesday
Shift : Swing

Crew Chief : Richardson
Program Deputy: Malace
Team : C
Arm : Shenenberger
Designated SSO: Shriner
LERF Operator:
Operators : Anthony, Shenenberger, Shriner

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

Log Number: 4484738Logbook(s): 

• ELOG

Entry Makers: dthomasBody: 

1L10 keeps pulling fsd

Log Number: 4484734Logbook(s): 

• HBLOG
• HCLOG
• ELOG

Body: 

The operator crews and beam optics specialists are continuing their work to optimize the beam transport.
Based on the present status, our estimate is that the earliest tune beam might arrive at the experiments is
during owl shift.

Recent status update in https://logbooks.jlab.org/entry/4484730

We are following Beam Study 119968 (https://tasklists.jlab.org/bslist/tasks/119968), presently at Test Procedure step 5.

Log Number: 4484730Logbook(s): 

• BTLOG
• ELOG

Body: 

As discussed on Monday after the 8:00 am meeting, we decided to follow the suggestions Jay commented on logentry 4484157 ( https://logbooks.jlab.org/comment/56915#comment-56915 ) as a path towards fixing beam delivery to Hall B. While this was delayed by other downtime sources, this was started during Monday day shift.

Log Number: 4484728Logbook(s): 

• ELOG
• BTLOG

Body: IHA3E01 X-plane Emittance Measurement Analysis
qsUtility Data Analyzer V7-34
SDDS FILE: /tmp/qsUtility_merge_datasets_CFzgBl
HOSTNAME: opsl03 CED WORKSPACE: OPS CED LOGIN KEY: pro

Log Number: 4484725Logbook(s): 

• ELOG

Tags: 

• ShiftSummary

Body:  CEBAF SHIFT LOG Shift Summary

Start of shift: xC Preparing for Production Beam, xB waiting on Expert. 

Log Number: 4484724Logbook(s): 

• ELOG
• BTLOG

Body: Emittance Measurement: IHA3E01 X-plane - ABORTED
qsUtility zigzag_dataColletor V7-34
HOSTNAME: opsl03 CED WORKSPACE: OPS CED LOGIN KEY: pro