Monte Carlo simulation of a PhosWatch detector using Geant4 for xenon isotope beta-gamma coincidence spectrum profile and detection efficiency calculations

被引：17
|
作者：
Mekarski, P. [1 ]
Zhang, W. [1 ]
Ungar, K. [1 ]
Bean, M. [1 ]
Korpach, E. [1 ]
机构：
[1] Hlth Canada, Radiat Protect Bur, Ottawa, ON K1A 1C1, Canada
来源：
APPLIED RADIATION AND ISOTOPES | 2009年 / 67卷 / 10期
关键词：
Monte Carlo simulation; Geant4; Beta-gamma coincidence counting; Xenon isotopes; RADIOACTIVE XENON; SYSTEM;
D O I：
10.1016/j.apradiso.2009.07.005
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
A simulation tool has been developed using the Geant4 Toolkit to simulate a PhosWatch single channel beta-gamma coincidence detection system consisting of a Csl(Tl)/BC404 Phoswich well detector and pulse shape analysis algorithms implemented digital signal processor. The tool can be used to simulate the detector's response for all the gamma rays and beta particles emitted from Xe-135, Xe-133m, Xe-133, Xe-131m and Pb-214. Two- and three-dimensional beta-gamma coincidence spectra from the PhosWatch detector can be produced using the simulation tool. The accurately simulated spectra could be used to calculate system coincidence detection efficiency for each xenon isotope, the corrections for the interference from the various spectral components from radon and xenon isotopes, and system gain calibration. Also, it can generate two- and three-dimensional xenon reference spectra to test beta-gamma coincidence spectral cleconvolution analysis software. Crown Copyright (C) 2009 Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：1957 / 1963
页数：7
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