| 摘要 |
PROBLEM TO BE SOLVED: To provide a system and method for measuring radioactivity of fuel in nuclear reactor fuel rods. SOLUTION: The system and method for generating a stabilized measurement of radioactivity from a radiation measurement system including determining a stabilization factor correlating a change in measured gamma emissions about a measurement threshold to a change in measured gamma emission about a stabilization threshold, determining a calibration count of gamma emissions greater than the stabilization threshold from a stabilization source, measuring gamma emissions greater than the measurement threshold from a radioactive source having unknown radioactivity, detecting gamma emissions from the stabilization source greater than the stabilization threshold responsive to the measuring, determining a drift about the stabilization threshold responsive to the calibration count and the detected gamma emissions, calculating a stabilized count of measured gamma emissions responsive to the measured gamma emissions greater than the measurement threshold, the stabilization factor, and the drift, and generating the stabilized measurement of radioactivity responsive to the stabilized count of measured gamma emissions. COPYRIGHT: (C)2008,JPO&INPIT
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