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2021/12/21 (Tuesday)

Previous Day

  • Lab in-personnel: Matt, Zach, Giulia
Status Run 75 in progress
Setup Tower Faces 5/3/2 → Cables 2/1/3 → nothing/diverter_board/nothing → DCRC55(1)/DCRC50(3)/DCRCx(4)
1130 Goldman/Tower/MC(H35)/Coldplate = 51.0/158/36.3/218 mK, Still = 1.67±0.04 K / 0.130 mbar / 0 mW, G1/G2= 189/187 mbar, 1K Pot = 1.64 K / 21±1 mbar, MB = 26.9%.
1135 Fill LN2 cold trap dewar.
1200 Modify my version of cdmsbats/BatCommon/datareader/RawDataReader.cxx to add a new “modification type” to map the current DCRC configuration to the detector channels in the 12-channel 2-sided setup.
1505 Install lead/poly shield around fridge - lead on 3 walls, still need to do S wall.
1514 Begin LHe transfer @ MB = 20.1%
1549 End LHe transfer @ MB = 91.3%

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