Calculation of the Decision Thresholds in Gamma-Ray Spectrometry
Nuclear instruments and methods in physics research Section A, Accelerators, spectrometers, detectors and associated equipment/Nuclear instruments & methods in physics research Section A, Accelerators, spectrometers, detectors and associated equipment（2021）
摘要
In the presence of radon daughters, gamma rays from 88Y with energies at 898.0keV or 1836.1keV appear on a high, continuous background or overlap with other peaks. Therefore a calculation of the decision threshold from the sum peak at 2734.1keV represents a useful alternative, because here the continuous background is low. The decision threshold calculated from this peak can attain a value being comparable to the decision threshold calculated from the gamma-ray peak at 898.0keV.
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关键词
Region-of-interest method,Least-squares method,Peak-analysis results,Correlation coefficients,Isolated peaks,Overlapping peaks
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