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2011/05/22

1444 DAQ error occurred at 06:59 at 07110522_0618_F0007.
Two pumps stopped working maybe because of power glitch. Temperature and pressure were not monitored, don't know then this happened. Restarted them.
Data series collected overnight: 07110521_2058; 07110521_2318; 07110522_0138; 07110522_0358; 07110522_0618 (incomplete).

1913 Filled N2 cold trap
1915 Start flashing detector.
1940 Stop flashing detector.
2340 Fill N2 cold trap full.

Looking for Neutralisation

Figure 1: First data series 07110521_2058.
Figure 2: Second data series 07110521_2318.
Figure 3: Third data series 07110522_0138.
Figure 4: Fourth data series 07110522_0358.
Figure 5: Fifth data series 07110522_0618.
Figure 6: Qsum spectra for files taken on 2011/05/21 & 2011/05/22.

Mean = 0.000729 ± 0.000013 (1.8%)
Standard deviation = 0.000029 (4.0% of mean)