05/09/2011

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I did some counts test like:

The powers were:

PS1 and PS2:  -1000 V
n's: -1100 V

The PMT for n's detectors is PMT HAMAMATSU R580 with supply voltage 1250/1500 V. But I have used the value above, because I though the counts rate was reasonable. See my table below.

The thresholds were:

PS1 and PS2:  -80 mV
n's: -60 mV

Let see what we have: