Aggregator
Restored Shunt values
CREW CHIEF SIGN IN
Log Number: 4511375Logbook(s): Body:
THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY
ACCELERATOR OPERATIONS CREW CHIEF SIGN IN FORM
Date : 06-13-26
Time : 15:47:05
Day : Saturday
Shift : Swing
Crew Chief : Richardson
Program Deputy: Minter
Team : X
Arm : Shenenberger
Designated SSO: Yoon
LERF Operator:
Operators : Shenenberger, Yoon
This stamp certifies that the above Crew Chief has read/reviewed/received the following:
THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY
ACCELERATOR OPERATIONS CREW CHIEF SIGN IN FORM
Date : 06-13-26
Time : 15:47:05
Day : Saturday
Shift : Swing
Crew Chief : Richardson
Program Deputy: Minter
Team : X
Arm : Shenenberger
Designated SSO: Yoon
LERF Operator:
Operators : Shenenberger, Yoon
This stamp certifies that the above Crew Chief has read/reviewed/received the following:
QuickPic - 2L20-8 derated by .4 to 5.56, SOS
eDT V2-42 Design Setpoints Download - Putting Field values in for 3 shunts...
RF On/Off turned RF On
As Found after SL CA
Crew Chief Shift Log, 2026-06-13 DAY
Log Number: 4511370Logbook(s): Tags: Body:
CEBAF SHIFT LOG
Shift Summary
Start of shift: Negotiating Beam into 8S
QuickPic - MQA9A18 mismatch, took setpoint and cycled
Box Supplies Turned on and Cycled Once
Log Number: 4511368Logbook(s): Tags: Body:
The following box supplies were TURNED ON AND CYCLED ONCE by version 2-16 of the Box Supply Cycling Script:
ARC1A Ramp Rate = 8.127 A/s
ARC2A Ramp Rate = 6.939 A/s
ARC3A Ramp Rate = 9.725 A/s
ARC4A Ramp Rate = 10.989 A/s
ARC5A Ramp Rate = 9.961 A/s
ARC6A Ramp Rate = 9.222 A/s
ARC7A Ramp Rate = 10.222 A/s
ARC8A Ramp Rate = 11.974 A/s
ARC9A Ramp Rate = 9.380 A/s
ARCAA Ramp Rate = 12.276 A/s
RSEP8A Ramp Rate = 10.612 A/s
RSEP9A Ramp Rate = 9.373 A/s
XSEP2T Ramp Rate = 5.796 A/s
XSEP4T Ramp Rate = 5.311 A/s
XSEP6T Ramp Rate = 9.472 A/s
XSEP8T Ramp Rate = 18.009 A/s
XSEPAT Ramp Rat
SL pressure excursion when RF was turned off for entry
QuickPic - More detailed survey of S. Linac beamline components of interest
Crew Chief Timesheet Summary: 13 Jun 2026 DAY
Log Number: 4511365Logbook(s): Tags: Body:
Accelerator
PHYSICS
STUDIES
RESTORE
ACC
DOWN
OFF (SAM)
Planned
0
0
8
QuickPic - SL Partial Survey
QuickPic - SL LCW pressure alarm (same one we get every ~6days)
QuickPic - 8S vacuum remains unchanged while West spreader IDX screams
Update: Still stuck
Log Number: 4511361Logbook(s): Entry Makers: mockBody:
Optics on call primary and secondary have been consulted.
DC power came onsite to check control system upstairs. Nothing out of the ordinary. If something was misconfigured on the magnet we would see it in the control system. All coeficients and setpoints are where they were at last high energy run.
We tried:
1. Additional 7R->8S shunt/correction steering solutions.
2. 7R recombiner match to see if perhaps beam was blown at the end of the linac into 8S but didnt work.
3. Zeroing first three 8S quads and steering with ZA8S03 to eliminate quad steering but nothing.
4.
RF On/Off turned RF Off
Box Supplies Were Turned Off
Log Number: 4511359Logbook(s): Tags: Body:
The following box supplies were TURNED OFF by version 2-16 of the Box Supply Cycling Script:
ARC1A Ramp Rate = 8.127 A/s
ARC2A Ramp Rate = 7.217 A/s
ARC3A Ramp Rate = 10.099 A/s
ARC4A Ramp Rate = 11.344 A/s
ARC5A Ramp Rate = 10.435 A/s
ARC6A Ramp Rate = 9.558 A/s
ARC7A Ramp Rate = 10.222 A/s
ARC8A Ramp Rate = 12.289 A/s
ARC9A Ramp Rate = 9.911 A/s
ARCAA Ramp Rate = 12.626 A/s
DOG1E Ramp Rate = 3.812 A/s
DOG2E Ramp Rate N/A
DOG3E Ramp Rate N/A
DOG4E Ramp Rate N/A
DOG5E Ramp Rate N/A
DOG6E Ramp Rate N/A
DOG7E Ramp Rate N/A
DOG8E Ramp Rate N/A
DOG9E Ramp Rate N/A
RSEP8A
HYST AREA 7-0 Cycles Magnets for LEM
Shift Information
| Shift | Swing |
|---|---|
| CEBAF Program | |
| MCC Crew Chief | Richardson |
| MCC Operators | Anthony, Shenenberger |
| Program Deputy | Minter |
| Announcements |
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