2022/10/29 (Saturday)
- 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 thresholds: 7.0 - 11.0 MeV |
| Cooled to base yesterday after eighteenth 5K pumpout. Temperature spikes began at 4:00 | |
| 1330 | Fill LN2 cold trap bath |
| 1340 | MC/Coldplate = 29.9/148mK, Still = 1.09 K / 0.090 mbar / 0 mW, G1/G2 = 138/125 mbar, 1K Pot = 45° / 1.57 K / 9.5±1 mbar, MB = 61.7% |