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2022/02/24 (Thursday)

Previous Day

  • Lab in-personnel: Matt, Shubham, Nikki, Scott, Michael, Giulia
Status Run 75 finished. All mixture in dump. LHe Trap and LN2 Trap 1 still have contaminants. Cryostat Vacuum Jacket pumped out. Tower removed.
1425 Moved tower to clean bench in clean room. Disconnected twisted pairs from detector DIBs and accessory connections at Tower sockets.
1450 Disassembled stack. Put crown and lid on S104 and bagged it to inspect later in wirebonder lab.
Didn't see any problems with connections on the two resistors attached to the source mover endstops. These read open when cold - maybe those resistances just go really high at sub-K
1450 Removed two screws from carriage on 1D source mover. Pulled source assemble out of carriage cup - this was a stack of bottom lead collimator, top lead disk, middle brass holder for smoke-detector Am source, all wrapped with layers of copper tape to fit in cup. Removed tape and separated pieces.
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