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2022/06/05 (Sunday)

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  • Lab in-personnel: Zach
Status Run 76 in progress
Setup Cables 2/3/1 → diverter/nothing/nothing → Side2-readout HV CONN 1/3/2 → HV 1(L)/2(R) → DCRC50(3)/DCRC55(1), DCRC33(2)→HV control, NaI trigger signal → DCRCX(4)
1525 MC/Coldplate = 28.2/145 mK, Still = 1.09 K / 0.100 mbar / 0 mW, G1/G2 = 143/143 mbar, 1K Pot = 45° / 1.55 K / 8.5±0.5 mbar
1530 Fill LN2 cold trap bath.
1614 Begin LHe transfer @ MB = 32.8%
1647 When raising fridge side transfer stick I bumped the rightmost rubber plug and it fell out, causing some lost helium. The recovery efficiency is down a couple percent as a result of this.
1657 End LHe tranfer @ MB = 86.9%

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