2022/10/26 (Wednesday)

Lab in-personnel: Zach

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 seventeenth 5K pumpout. Temperature spikes began at 4:30 am
	Taking -80V NaI-triggered data overnight. DAQ crash at 6:28, all dumps after 621 are empty.
0951	Start -82.1 V PuBe data series 57 min long, SiHV-triggered with 1000 initial randoms, 5 Hz in-run randoms, trigger on DCRC1pB threshold 10. Start series with the Start Button
0955	HV = -91.7 V, Vtest = -21.8 mV, Ileak = -24 uA, Vdet = -82.1 V (90%).
0955	MC base = 29.9 mK. Most spikes peaking below 30.2, some above 30.6 mK
1049	Start -82.1 V PuBe data series 646 min long, NaI-triggered with 1000 initial randoms, 5 Hz in-run randoms, trigger on DCRC4pA threshold 20. Start series with the Start Button
1055	DCRC1pA baseline = -0.792 V
1159	MC/Coldplate = 34.6/151 mK, Still = 1.12 K / 0.070 mbar / 0 mW, G1/G2 = 129/122 mbar, 1K Pot = 45° / 1.57 K / 9.5±1 mbar, MB = 62.9%
1200	Fill LN2 cold trap dewar
1207	LN2 has run out, take it to be refilled
1309	Bring full LN2 dewar back. set up E-box N2 purge
1320	Finish filling cold trap dewar
1655	DCRC1pA baseline = -0.793 V
2140	MC base = 30.4 mK. Most spikes peaking below 32 mK, some above 35 mK
2145	DCRC1pA baseline = -0.791 V
2145	Start -82.1 V PuBe data series 39 min long, SiHV-triggered with 1000 initial randoms, 5 Hz in-run randoms, trigger on DCRC1pB threshold 10. Start series with the Start Button
2224	Start -82.1 V PuBe data series 640 min long, NaI-triggered with 1000 initial randoms, 5 Hz in-run randoms, trigger on DCRC4pA threshold 20. Start series with the Start Button

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