Calculation of coincidence summing in gamma-ray spectrometry with the EGS5 code

Tsuyoshi Kajimoto; Satoru Endo; Nguyen Tat Thanh; Kiyoshi Shizuma

doi:10.1016/j.apradiso.2014.09.018

Calculation of coincidence summing in gamma-ray spectrometry with the EGS5 code

Appl Radiat Isot. 2015 Jan:95:53-58. doi: 10.1016/j.apradiso.2014.09.018. Epub 2014 Oct 8.

Authors

Tsuyoshi Kajimoto¹, Satoru Endo², Nguyen Tat Thanh², Kiyoshi Shizuma²

Affiliations

¹ Graduate School of Engineering, Hiroshima University, 1-4-1, Kagamiyama, Higashi-Hiroshima 739-8527, Japan. Electronic address: kajimoto@hiroshima-u.ac.jp.
² Graduate School of Engineering, Hiroshima University, 1-4-1, Kagamiyama, Higashi-Hiroshima 739-8527, Japan.

PMID: 25464177
DOI: 10.1016/j.apradiso.2014.09.018

Abstract

Coincidence summing correction factors, including not only γ-γ and X-γ, but also β-γ and conversion electron-γ, coincidences were calculated by Monte Carlo simulation of decay schemes by using the EGS5 code. A large contribution from β-rays to the factors was found for ²⁴Na for the n-type detector in the case of close source-to-detector geometry with a point source.

Keywords: Coincidence summing; EGS5; Monte Carlo simulation.