2022/04/26 (Tuesday)
- Lab in-personnel: Matt, Nikki
| 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 → DCRC52(6) |
| 1112 | Dial HV up to - 207.9 V using RootSequencer for prebias. Set it to rise about 5 V/s with 0.25 second steps. |
| 1118 | After 5 minutes dial HV down to -180.5 V |
| 1120 | Start -180.5 V data series after 5 min 15% prebias, 56 min long, with 1000 initial randoms, 5 Hz in-run randoms, trigger on DCRC3pD threshold 10. Start series with the Start Button. |
| 1120 | MC = 28.6 mK |
| 1220 | Dial HV down to 0V after data series ends. |
| 1557 | Begin LHe transfer @ MB = 34.5% |
| 1610 | MC/Coldplate = 28.5/140 mK, Still = 1.09 K / 0.110 mbar / 0 mW, G1/G2= 115/103 mbar, 1K Pot = 18° / 1.59 K / 17±1 mbar |
| 1K Pot higher than normal because the transfer just started | |
| 1615 | Fill LN2 cold trap bath |
| 1647 | End LHe transfer @ MB = 95.6% |
| 2015 | Dial HV up to -231.8 V using RootSequencer for prebias. Set it to rise about 5 V/s with 0.25 second steps. |
| 2021 | After 5 minutes dial HV down to -200.9 V |
| 2022 | Start -200.8 V data series after 5 min 15% prebias, 54 min long, with 1000 initial randoms, 5 Hz in-run randoms, trigger on DCRC3pD threshold 10. Start series with the Start Button. |
| 2025 | MC = 28.2 mK |
| 2120 | Dial HV down to 0V after data series ends. |
