摘要
为了满足放射性氙的现场快速测量需求,本文采用基于体素填充的蒙特卡罗方法实现了复杂几何形状的一体化吸附/测量源盒内部的吸附柱中放射性氙同位素的探测效率校准。验证实验结果表明,ULB HPGe探测器对氙同位素探测效率的计算值与实验值的相对偏差小于±8%,说明本文所建立的方法是可行的。
For the purpose of rapid on-site measurement for radioxenon, the efficiency of radioxenon for HPGe detector were performed with Monte Carlo method for the adsorption column in the integrative sample box which was designed with functions of adsorption and source container. And the voxel filling method was utilized to describe the complicated geometric structure of that column. The results of experimental validation indicated that the relative errors for the efficiencies between experiment and calculation are less than ±8%, and the method presented in this paper was feasible.
作者
龙斌
李君利
马怀成
田言杰
张洋
范成洲
王群书
LONG Bin;LI Jun-li;MA Huai-cheng;TIAN Yan-jie;ZHANG Yang;FAN Cheng-zhou;WANG Qun-shu(Key Laboratory of Particle and Radiation Imaging of Ministry of Education, Department of Engineering Physics, Tsinghua University, Beijing 100084, China;Northwest Institute of Nuclear Technology, Xi＇an 710024, China)
出处
《核电子学与探测技术》
北大核心
2017年第7期678-682,共5页
Nuclear Electronics & Detection Technology
关键词
放射性氙
效率校准
体素填充
MC模拟
radioxenon
efficiency calibration
voxel filling
MC simulation.
