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- W3208591216 abstract "Considering the difficulties of the low signal-to-noise ratio in weak radioactive source detections, this study proposes an abandon Gaussian tails method based on the analysis of the characteristic information denoted by the full-energy peak of the gamma spectrum of a gamma-emitting radioactive source. Based on the study of the signal-to-background ratio and the statistical fluctuations in the signal of the weak radioactive source, a factor ζ, incorporating the statistical fluctuations of signal and background and the signal-to-background ratio, is suggested to characterize the sensitivity of a radioactive source detection. When ζ reaches its maximum value, the optimal counting window around the centroid of the full-energy peak can be obtained. To evaluate the effectiveness of the proposed approach, comparisons between the proposed abandon Gaussian tails, the conventional full-energy counting, and other experiential methods were performed. The results show that the sensitivity can be significantly improved. Further, experiments with different intensity of radiation sources and duplicated experiments were conducted to examine the stability of the proposed method." @default.
- W3208591216 created "2021-11-08" @default.
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- W3208591216 date "2022-01-01" @default.
- W3208591216 modified "2023-10-18" @default.
- W3208591216 title "Enhancing the sensitivity for weak radioactive source detection" @default.
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- W3208591216 doi "https://doi.org/10.1016/j.apradiso.2021.109949" @default.
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