2022/11/15 (Tuesday)
- Lab in-personnel: Giulia
| 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) Lead/poly shield fully assembled. Boron-filled socks covering NaI detectors. PuBe behind lead wall on W side of fridge. NaI array trigger window = 4.73 - 5.13 MeV |
| Cooled down yesterday after twenty-third 5K pumpout. Temperature spikes began at 4:40 am. | |
| 0845 | HV = -90.9 V, Vtest = -20.8 mV, Ileak = -22.9 uA, Vdet = -81.7 V (90%). |
| 0845 | Start -81.7 V PuBe data series 33 min long, SiHV-triggered with 1000 initial randoms, 5 Hz in-run randoms, trigger on DCRC1pB threshold 10. Start series with the Start Button |
| 0910 | MC/Coldplate = 29.7/153 mK, Still = 1.13 K / 0.095 mbar / 0 mW, G1/G2 = 151/135 mbar, 1K Pot = 60° / 1.58 K / 10.5±0.5 mbar, MB = 69.8% |
| 0920 | Fill LN2 cold trap bath |
| 0919 | Start -81.7 V PuBe data series ## good min long, NaI-triggered with 1000 initial randoms, 5 Hz in-run randoms, trigger on DCRC4pA threshold 20. Start series with the Start Button |
| 1520 | DCRC1pA baseline = -0.791 V |
| 2105 | DCRC1pA baseline = -0.789 V |
| 2105 | HV = -90.8 V, Vtest = -20.8 mV, Ileak = -22.9 uA, Vdet = -81.7 V (90%). |
| 2109 | Start -81.7 V PuBe data series ## min long, SiHV-triggered with 1000 initial randoms, 5 Hz in-run randoms, trigger on DCRC1pB threshold 10. Start series with the Start Button |
| 2201 | Start -81.7 V PuBe data series ## good min long, NaI-triggered with 1000 initial randoms, 5 Hz in-run randoms, trigger on DCRC4pA threshold 20. Start series with the Start Button |