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prep chamber rebuild

2 days 11 hours ago
Log Number: 4551257Logbook(s): Entry Makers: marcyBody: 

Removed long manipulator, NF3 valve, Cs and RGA
Reinstalled refurbished long manipulator, new RGA and NF3 valve, and put new Cs strips on Cs dispenser.
Pumping down - we did preliminary hot checkout of electronics but will do more once the vacuum improves.
Found slight leak in Cs flange, tightened more (the bolts are hard to reach, this might still need to be tightened more)

No vacuum activity at all in gun chamber or tee during prep chamber vent.

marcy

COMMENT ON Magnet Thermal Interlock Chassis Upgrade

2 days 11 hours ago
Log Number: 4551227Logbook(s): Body: 

We plan to begin as soon as each team member is available. Hopefully in the next couple of days.

I expect the actual work in both buildings should take at most a week. However, this estimate doesn't account for if there any delays in completing the work so the timeframe could very well be longer.

peirce

COMMENT ON Magnet Thermal Interlock Chassis Upgrade

2 days 11 hours ago
Log Number: 4551226Logbook(s): Body: 

Pre-job brief completed, PTW is On Issue.

Task approved by work supervisor.

Work could begin as early as 10/29, but still TBD. 1 week estimate includes North and South both supplies. Meeting this estimate is contingent on completing drop checks following chassis work.

delk

CREW CHIEF SIGN IN

2 days 12 hours ago
Log Number: 4551221Logbook(s): Body: 
THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY
ACCELERATOR OPERATIONS CREW CHIEF SIGN IN FORM

Date : 10-28-26
Time : 10:56:25
Day : Wednesday
Shift : Day

Crew Chief : Schoene
Program Deputy: Delk
Team : B
LERF Operator:
Operators :

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

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MCC Crew Chief Deir
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Program Deputy Delk
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