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2015/10/11 (Sunday)

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Overnight status: took background data, but DIB1pB went flatline during or after the first series
0955 Fill LN2 cold trap Dewar.
1000 G1/G2 much lower since about midnight for some reason, around 140 mbar
1004 Commence LHe transfer (30.1%)
1048 Finnish LHe tranfer (90.4%)
1115 After some MIDAS tests, reset for data taking. Several channels had to be relocked, one needed its offset adjusted.
DIB2pD had Front-End Gain set to 5, should be 2 (mistake in MIDAS settings?)
had to do wr 33 2000 on DCRC33(DIB2) to see charge. Actually isn't this only a problem for DCRC31? Maybe it was heating the FET that brought back the channels, not sure
250 Hz noise fairly low amplitude and intermittent. 2015/10/02 phonon thresholds look OK.
1148 Start 28 cycles of 15min background data series at -/+2V, FG=5/2/5, OG=3, with 1000 initial randoms, 2000 events/file, 30s flash and 30min cooldown in between.
1155 So far DIB1pB looks OK

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