A Method of Increasing the Effective Resolution of Scintillation Counters

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Abstract
A system consisting of two photomultipliers viewing one scintillating crystal is given for resolving peaks in a scintillation spectrum which otherwise would overlap because of photomultiplier statistics. A differential discriminator accepts pulses from a fixed portion of the spectrum from one of the tubes. Another differential discriminator scans the spectrum from the second tube and is coincidence gated by the first. Experimental results are presented which show that this method can separate monoenergetic lines not otherwise resolved.
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