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2018/01/16 (Tuesday)

Previous Day

Status: warming up. All mixture in dump, fridge isolated. LN2 traps warm and pumped out. 1K Pot needle valve open. Around 1 bar @300 K N2 in IVC.
1005 MC(Cernox) = 290 K.
1050 Finish lead/poly shield disassembly, remove shield walls from lab

1100 Close 1K Pot needle valve
Close He recovery valve from MB
1305 Lower cryostat into pit

notes on pit dimensions:

  • pit depth = 76 inches
  • pit x-section = 44.75 × 44.75 inches
  • lip = 1.5 inches deep, 1.5 inches wide
1430 Erect clean tent around fridge. Open IVC.

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