强激光与粒子束2013，Vol.25Issue(1)：201-206,6.DOI:10.3788/HPLPB20132501.0201
基于蒙特卡罗的HPGe伽马谱仪无源效率刻度方法
Monte Carlo-based sourceless efficiency calibration method of HPGe γ spectrometer
摘要
Abstract
Combining MCNP5 simulation with mathematical computation and utilizing the axial symmetry of detector-crystal geometry, a source-less efficiency calibration method to an HPGe detector is established. The computer code based on this method can calibrate the efficiency of point sources and coaxial cylinder sources without need for MCNP5 in its using process and its runtime is 1s-1 min. The applicable energy range is 50 keV-3 MeV. Comparing self-written code's result with experimental data and MCNP5's simulation result, the error is below 12 percent and 7 percent respectively, which proves the method is feasibility.关键词
蒙特卡罗方法/无源效率刻度/HPGe探测器Key words
Monte Carlo method/ source-less efficiency calculation/ HPGe detector分类
能源科技引用本文复制引用
陈立,马豪,曾志,李君利,程建平..基于蒙特卡罗的HPGe伽马谱仪无源效率刻度方法[J].强激光与粒子束,2013,25(1):201-206,6.基金项目
国家自然科学基金项目(11035002,11075091,11175099) （11035002,11075091,11175099）
