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Operator SIGN IN
CREW CHIEF SIGN IN
THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY
ACCELERATOR OPERATIONS CREW CHIEF SIGN IN FORM
Date : 03-20-26
Time : 16:03:26
Day : Friday
Shift : Swing
Crew Chief : Forman
Program Deputy: Roblin
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:
Vacuum Group Summary 2026-03-20
COMPLETED Replace Shunt on MBZ6E02
COMMENT ON SAM 2025 Box Power Supply HCO
TSB5C Status
Data taken for TSB5C. Supply is presently at setpoint and soaking with no issues. If the supply faults and trips off, do not turn back on. Screenshot the fault and log it.
Ops can ramp down the supply for Hall D if they want to get in after the the soaking period is over ( ~12 hours). Otherwise, please leave on until Monday morning. The longer the better.
COMPLETED Hall D Tagger CARM RM503 Replacement and Certification
Crew Chief Shift Log, 2026-03-20 DAY
Start of shift: Corner clean-up ongoing.
Crew Chief Timesheet Summary: 20 Mar 2026 DAY
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Beam back to 8R after touching up steering
Finished backing out and touching up steering up to 8R. Currently the only IDX showing response is IIX6S01 which is a combination of 4S and 6S steering.
The position at 4S01 and 6S01 is very hard to minimize without blowing up the linac orbit so we decided on a middle ground. This shows as coming in with a high launch into 4S and and wave in the 6L.
dogCalc V0-14 download
Minor 6R shunt steering
Orbit found after pulling the 5R dumplette (Fig. 1). MXU6R04 is about 3% off so tried to see if I can find a better solution.
Was able to get it slightly closer to design. Was able to get everything nice and flat except the launch into the linac... IIX1L02 not reading anything so seems to be find here...
Survey and Alignment work summary
Further 5R shunt adjustment
Minor 5R shunt steering
HYST AREA 7-0 Cycles Magnets
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










