| 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. |
| | Restarted circulation three days ago after a fridge failure (impedance blockage) a week ago. |
| 1215 | MC/Coldplate = 35.1/154 mK, Still = 1.16 K / 0.130 mbar / 0 mW, G1/G2 = 162/155 mbar, 1K Pot = 50° / 1.69 K / 42±2 mbar, MB = 63.4% |
| 1223 | Fill LN2 cold trap bath |
| | MC temperature showed a very weird spike(a bit above 160 mK) today, around 11:45 am and we keep seeing spikes (usually between 50 and 70 mK) every 15 minutes with much higher spikes approximately every two hours. |
| 1500 | Watching Goldman thermometer now. It's showing similar spikes, though of course the base is different (still reading anomalously high of course). Base is 90 mK, most peaks are below 120 mK, highest one I've seen after a couple hours is 165 mK. |
| | Also watched coldplate temperature during an tower temperature spike. Coldplate seemed to stay pretty much flat at 155 mK or so. |
