2022/10/07 (Friday)
- Lab in-personnel: Matt, 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 source behind lead wall on West side of lead/poly shield. |
| NaI trigger window: 7.6-11.2 MeV | |
| Cooled to base yesterday after twelfth 5K pumpout. Temperature spikes began at 6:25 am. | |
| 1155 | MC base 29.3 mK, most spikes peaking below 29.8 mK, some above 30.2 mK |
| 1250 | MC/Coldplate = 29.3/151 mK, Still = 1.12 K / 0.110 mbar / 0 mW, G1/G2 = 135/111 mbar, 1K Pot = 45° / 1.59 K / 13±1 mbar, MB = 69.7% |
| 1305 | Fill LN2 cold trap bath |