April: Threshold Study

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Go back Neutron ToF measurements

Aside from the discriminator threshold, all data was taken on equal footing. The distance from the source to the center of the detector was 1.59 meters.

Run# PMT Thresh [mV] Hz
5114 90 11
5115 80 12
5116 70 13.5
5117 60 15
5118 50 16.8
5119 40 19.5
5120 30 23.2
5121 20 29.2
5122 10 34.4

ErgvsThesh.png

ToFvsThresh.png

PMTDiffvsThresh.png

Below is a link to all the ROOT files I used. The PMT threshold is related to run number by the following:[math]Thresh= 90 - 10*(run\# - 5114)[/math] , where run# varies from 5114 to 5121.

https://drive.google.com/folderview?id=0B0i9-U4ubKLXLXF2WGREYWNiaDg&usp=sharing




Go back Neutron ToF measurements