2022/11/09 (Wednesday)
- 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 scan in progress, not set up for coincidence data |
| Cooled to base yesterday after twenty-first 5K pumpout. | |
| Temperature spikes began rather subtly. First hint at 1:24 am. Stronger and more regular/frequent starting at 4:00 am. | |
| 1050 | Baselines for DCRC1pA/B/C/DCRC3pA/B/C = -0.811/-0.814/-0.812/-0.811/-0.809/-0.807 V |
| 1325 | MC/Coldplate = 30.8/148 mK, Still = 1.11 K / 0.110 mbar / 0 mW, G1/G2 = 131/128 mbar, 1K Pot = 45° / 1.58 K / 9.5±0.5 mbar |
| 1335 | Fill LN2 cold trap bath |