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 in order to avoid double counting.
Discriminator thresholds:
Trigger: 35 mv
PMT's: 50 mv
| Detector | Count rate at -1700 V (Hz) | |
|---|---|---|
| angle | color | |
| 30 | Red | 0.85 |
| 90 | Yellow | 1.2 |
| 150 | Blue | 0.80 |
| 225 | Wood | 0.09 |
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