2022/09/05 (Monday)
- 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 West side of lead/poly shield. |
| NaI trigger window: 7.6-11.2 MeV | |
| Cooled to base yesterday after fourth 5K pumpout. | |
| MC reached a minimum of 26.8 mK overnight. Spikes started at 6am. | |
| 1130 | MC base is 27.1 mK with spikes peaking as high as 28.9 |
| 1130 | Fill LN2 cold trap bath |
| 1135 | Plug DCRCs 1&3 |
| 1145 | MC/Coldplate = 27.1/150 mK, Still = 1.12 K / 0.110 mbar / 0 mW, G1/G2 = 156/144 mbar, 1K Pot = 60° / 1.60 K / 15±1 mbar, MB = 62.6 % |
| 1750 | MC base is 28.4 mK with spikes peaking as high as 31.5 |