System and method for monitoring the stability of a scintillation detector
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United States of America Patent
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May 16, 2000
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N/A
app pub date -
Jun 11, 1997
filing date -
Jun 11, 1997
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Expired
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Abstract
A system for on-line monitoring the stability of a scintillation detector, comprises means providing two beams of gamma rays from a subsidiary source which are distinguishable because of their time relationship from the primary source. The two beams are of similar energies but are oriented in different directions, with one directed into the scintillation detector and one acting as a reference beam and directed to a reference beam counter. The ratio of the detector-count rate for the timed events to the reference count rate is compared to provide an indication of any drift in the scintillation detector.
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