Cf252 NaI detector test. 12 Apr 2012
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NaI detector, -1030V, 300 mV threshold on gate channel, signal ADC4
| Run # | source | shielding | cnts | rate | Comments |
|---|---|---|---|---|---|
| 2775 | Co-60 some distance away from NaI | 2" Pb around, no front shielding | |||
| 2776 | bkgd | 2" Pb around, no front shielding | |||
| 2777 | Co-60 on NaI taped | 2" Pb around, no front shielding | see clear 2 big 1.2 and 1.4 MeV peaks, small peak around 4.3 MeV Calibration 1.4MeV/575cnls = 0.00243 MeV/cnl
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