True coincidence summing correction for cylindrical volume samples in -ray spectrometry

Yamada, Takashi*; Asai, Masato ; Yonezawa, Chushiro*; Kakita, Kazutoshi*; Hirai, Shoji*

We have confirmed that the commercially available Japanese "standard" gamma-ray analysis programs do not consider the effect of sample volume in calculating true coincidence summing (TCS) corrections, which results in underestimation of $^{134}$ Cs radioactivity in cylindrical volume samples. In this work, we have developed and examined a practical TCS correction method for general Ge detectors which consider the effect of sample volume properly, and have confirmed that this method can reduce the $^{134}$ Cs radioactivity underestimation to less than 1%.

Language	:	Japanese
Journal	:	Radioisotopes
Volume	:	69
Number	:	9
Pages	:	p.287 - 297
Publication Year/Month	:	2020/09
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Paper URL	:	https://doi.org/10.3769/radioisotopes.69.287
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Keywords	:	Gamma-Ray Spectrometry; Cesium 134; True Coincidence Summing Correction; Sample volume
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Registration No. : AA20200102
JAEA Abstracts No. : 48001236
Paper Submission No. : 23484

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