原子能科学技术Issue(10)：1883-1887,5.DOI:10.7538/yzk.2013.47.10.1883
平板高纯锗探测器几何参数修正的解析方法
Analytic Method for Geometrical Parameter Correction of Planar HPGe Detector
黎先利 1尹国辉 1马怀成 1冯天成 1田言杰 1成智威 1孙高峰 1申茂泉1
作者信息
- 1. 西北核技术研究所,陕西 西安,710613
- 折叠
摘要
Abstract
A numerical integration formula was introduced to calculate the response of planar HPGe detector to photons emitted from point source .Then the formula was used to correct the geometrical parameter of planar HPGe detector .241 Am and 137 Cs point sources were placed at a certain distance (1-20 cm) away from entrance window to get the corresponding detection efficiency . The detection parameters were calculated in weighted least square fitting using the formula with the experimental efficiencies as formula results .This correction method was accurate and timesaving .The simulation result from MCNP using the corrected parameters shows that the relative deviations between simulation and experimental efficiencies are less than 1% for 59.5 and 661.6 keV photons with the distance of 1-20 cm .关键词
平板高纯锗/蒙特卡罗/数值积分/加权最小二乘Key words
planar HPGe/Monte Carlo/numerical integration/weighted least square分类
数理科学引用本文复制引用
黎先利,尹国辉,马怀成,冯天成,田言杰,成智威,孙高峰,申茂泉..平板高纯锗探测器几何参数修正的解析方法[J].原子能科学技术,2013,(10):1883-1887,5.
