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2015/10/27 (Tuesday)

Previous Day

0921 Fill LN2 cold trap full.
0925 Put Soudan Cf source back in safe.
1040 Tower/MC(H35)/MC sensor/Cold Plate = 31.1/27.0/41.3/148 mK, Still = 1.37 K / 0.11 mbar, G1/G2 = 125/115 mbar, 1K Pot = 1.69 K / 13 mbar, Main bath = 70.5%
1119 Start 30min run of background data at -/+8V overshooting +Qbias (side 2) to 14V before starting data, FG=5/2/5, OG=3, 1000 initial randoms, 2000 events/file, 30s flash and 25min cooldown after. Use phonon trigger thresholds from last Wednesday
A B C D
DIB1 36 40 42 40
DIB2 24 18 20 28
DIB3 40 46 58 48
1225 Start 30min run of background data at +/-8V overshooting +Qbias (side 1) to 14V before starting data, FG=5/2/5, OG=3, 1000 initial randoms, 2000 events/file, 30s flash and 25min cooldown after. Use phonon trigger thresholds from last Wednesday
1326 Start 30min run of background data at -/+6V overshooting +Qbias (side 2) to 14V before starting data, FG=5/2/5, OG=3, 1000 initial randoms, 2000 events/file, 30s flash and 25min cooldown after. Use phonon trigger thresholds from last Wednesday
1428 Start 30min run of background data at +/-6V overshooting +Qbias (side 1) to 14V before starting data, FG=5/2/5, OG=3, 1000 initial randoms, 2000 events/file, 30s flash and 25min cooldown after. Use phonon trigger thresholds from last Wednesday
1335 Add Soudan Cf source inside the shield near the detector.
1539 Start 17 cycles of 30min runs of background data at +/-2V, FG=5/2/5, OG=3, 1000 initial randoms, 2000 events/file, 30s flash and 25min cooldown after. Use phonon trigger thresholds from last Wednesday
1630 Fill LN cold trap Dewar
1635 Main bath = 62.1%

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