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2011/12/16

1055 Filled LN2 cold trap
1845 Begin LHe transfer (~7%)
1939 Found the ozip format daq didn't write synchronized pulses to the data but the IZIP format daq worked fine.
Modified DAQDAQ2.vi to use IZIP format daq software (v. 20110525). The event rate of the izip daq at trigger level 40 ADC bin is about 30 Hz.
2000 End LHe transfer (~85%)
2053 Created IZIP DAQ setting files. Ready to take data. Tower temperature is rising.
2058 Filled N2 cold trap.
2103 Open the He recovery to air and unplug and replug in the He transfer port to release the bath pressure, temperature starts to drop.
2125 Started taking data 07111216_2125_F0001 -4V on Q1-4, trigger at 40 ADC bin on Q1-4, trace length 0.4096ms, look back time 100us, data/flash/cooldown = 60/0.1/20 min, IZIP format. DIB1→DIB1 & DIB2→DIB2. Take 3 series at -4V and then -6, -8, -10, -13V. Tower temperature 63mK, dropping.