UMN CDMS Wiki archive
start › cdms › k100 › run_diary › 20110517

2011/05/17

0005 Start overnight data series: data acquisition for 60 minutes; flash detector for 20 minutes; cool down for 60 minutes.
1000 Put a little bit of LN2 in cold trap. Seemed pretty full already.
1030 DAQ crashed again. Data series taken overnight: 07110517_0001; 07110517_0221; 07110517_0441; 07110517_0702; 07110517_0922 (incomplete).
1810 Begun LHe transfer - 19.5%.
1832 Adjusted phonon driver offsets and put them in the DCRC power up settings.
1840 End LHe transfer - 96.3%.
1907 The Phonon offset changes with output gain. No universal calibration table can be made.
1912 Set still power 2mW→0 because G1 and G2 are a bit high.
2041 Zap squid on DCRC33 twice

Looking for Neutralisation

Figure 1: First data series 07110517_0001.
Figure 2: Second data series 07110517_0221.
Figure 3: Third data series 07110517_0441.
Figure 4: Fourth data series 07110517_0702.
Figure 5: Fifth data series 07110517_0922.
Figure 6: Qsum spectra for files taken on 2011/05/17.
Figure 7: Qsum spectra for files taken on 2011/05/17, scaled to 356 keV peak position from 07110517_0441.

Mean = 0.000670 ± 0.000018 (2.7%)
Standard deviation = 0.000040 (6.0% of mean)