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2011/05/14

1400 DAQ crashed again at 05:14 this morning. Again, memory full error was witnessed.
Data series collected overnight: 07110513_2327; 07110514_0043; 07110514_0158; 07110514_0313; 07110514_0428 (incomplete).
1420 Fill N2 cold trap full.
1430 Start flashing detector.
1535 Stop flashing detector.
1650 Pump out helium transfer stick for 20 minutes.
1710 Start LHe transfer. Helium liquid level 30.2%.
1800 Stop LHe transfer. Helium liquid level 96.6%.
1850 Apply QET bias to all phonon channels.
1900 Start taking data overnight: trace length 3.2768 ms; trigger delay 400 μs; take data for 60 minutes; flash for 6 s; cool down for 15 minutes.

Looking for Neutralisation

Figure 1: First data series 07110513_2327.
Figure 2: Second data series 07110514_0043.
Figure 3: Third data series 07110514_0158.
Figure 4: Fourth data series 07110514_0313.
Figure 5: Fifth data series 07110514_0428.

Mean = 0.000703 ± 0.000034 (5%)
Standard deviation = 0.000077 (11% of mean)