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2011/03/05

0019 Stop the series 07110304_1358 at file 83. Flash detectors: LED1, -0.6mA, 100us ON, 2500us OFF
0120 Fill N2 cold trap full.
Stop flashing detectors.
0215 Zap SQUIDs on G9: charge time 60 s; zap time 10 s; cooldown 30 s.
0220 Zap SQUIDs on G8: charge time 60 s; zap time 10 s; cooldown 30 s.
0255 Traces on G9 look awful. Zap SQUIDs again: charge time 60 s; zap time 10 s; cooldown 30 s.
0310 Phonon channel B on G9 looks bad. Zap SQUIDs again: charge time 60 s; zap time 10 s; cooldown 30 s.
0350 Increase phonon trigger threshold to 10 ADC bins on G8 & G9. Start taking data with Cf-252 source 4' away from detectors: 07110305_0350.
1130 Stop data series 07110305_0350 on file 62.
Flash both detectors: LED1, -0.6 mA, 100 μs ON, 2500 μs OFF.
1250 Stop flashing detectors.
1430 Start Ba-133 run; data series: 07110305_1427.
1455 Gone for lunch. Back soon.
1930 Stop data series 07110305_1427 on file 30.
Flash both detectors: LED1, -0.6 mA, 100 μs ON, 2500 μs OFF.
2000 Dismantle neutron shield.
Stop flashing detectors.
2100 Start Cf-252 run; data series: 07110305_2101.