Difference between revisions of "05/19/2011 n's detector threshold calibration source/(w/source)"
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| − | And bellow I | + | And bellow I overlay both cases (-1250 V and -1500 V) |
[[File:Det1 calibraton source 1250 1500.png | 600 px]] [[File:Det1 calibraton source 1250 1500 log.png | 600 px]] | [[File:Det1 calibraton source 1250 1500.png | 600 px]] [[File:Det1 calibraton source 1250 1500 log.png | 600 px]] | ||
Revision as of 04:35, 20 May 2011
Below are my counts rate measurements as function of threshold voltage for n's detector. The source was CF252. The distance between source and n's PMT was about 50 cm. The counts rate was calculated as:
First I did my calibration for power supply voltage -1250 V:
Second I did my calibration for power supply voltage -1500 V:
And bellow I overlay both cases (-1250 V and -1500 V)
