Gain matching

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7/16/16

PMT top and bottom is in coincidence with a trigger placed 3" below the CF-252 source.

PMT pulses are widened to 500 ns in electronics.


Discriminator thresholds:

Trigger: 15 mv

PMT's: 60 mv


Detector Color Signal cable labels Count rate at -1700 V (Hz) Difference
Source in Source out
D30 Red D30T001 / D30B002 8.3 4.8 3.5
D90 Yellow D90T003 / D90B004 2.4 0.6 1.8
D150 Blue D150T005 / D150B006 3.7 1.67 2.0
D225 Wood D225T007 / D225B008 0.8 0.4 0.4