Calculation of Coincidence Summing Correction Factors for an HPGe detector using GEANT4

被引：12
|
作者：
Giubrone, G. [1 ]
Ortiz, J. [1 ]
Gallardo, S. [2 ]
Martorell, S.
Bas, M. C. [3 ]
机构：
[1] Univ Politecn Valencia, Lab Radiactividad Ambiental, E-46022 Valencia, Spain
[2] Univ Politecn Valencia, Inst Univ Seguridad Ind Radiofis & Medioambiental, Camino de Vera S-N, E-46022 Valencia, Spain
[3] Univ Politecn Valencia, Dept Estadist & Invest Operat Aplicadas & Calidad, E-46022 Valencia, Spain
来源：
JOURNAL OF ENVIRONMENTAL RADIOACTIVITY | 2016年 / 158卷
关键词：
Coincidence Summing; HPGe detector; Monte Carlo; GEANT4; GAMMA-RAY SPECTROMETRY; SIMULATION; CODE;
D O I：
10.1016/j.jenvrad.2016.04.008
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The aim of this paper was to calculate the True Coincidence Summing Correction Factors (TSCFs) for an HPGe coaxial detector in order to correct the summing effect as a result of the presence of Y-88 and Co-60 in a multigamma source used to obtain a calibration efficiency curve. Results were obtained for three volumetric sources using the Monte Carlo toolkit, GEANT4. The first part of this paper deals with modeling the detector in order to obtain a simulated full energy peak efficiency curve. A quantitative comparison between the measured and simulated values was made across the entire energy range under study. The True Summing Correction Factors were calculated for Y-88 and Co-60 using the full peak efficiencies obtained with GEANT4. This methodology was subsequently applied to Cs-134, and presented a complex decay scheme. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：114 / 118
页数：5
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