Difference between revisions of "Threshold & HV study"

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==Overview==
 
A series of triggered CF-252 runs are conducted at various detector PMT high voltages and discriminator thresholds. A TDC spectrum is acquired using daq2 so that  a neutron cut can be applied. These data provides us with a relationship between neutron detection rate and PMT HV/threshold.
 
  
==Setup==
 
A CF-252 source along with a trigger scintillator is placed at the geometric center of the array of neutron detectors.  The source discriminator threshold is kept constant throughout the study at 100 mV.
 
 
==results==
 
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Latest revision as of 18:47, 17 October 2016