强激光与粒子束2018，Vol.30Issue(3)：62-68,7.DOI:10.11884/HPLPB201830.170278
基于虚拟点探测器的虚拟点源效率刻度技术
Virtual point source efficiency calibration technology based on virtual point detector
摘要
Abstract
The detection efficiency of?75 mm×25 mm of 241Am standard samples were studied by using laboratory HPGe detection.When we used detectors with the same type of structure to measure a given volume source,the linearity function be-tween the virtual point source and the virtual point detector was established by using LabSOCS software and Monte Carlo method.For a detector,the position of virtual point detector can be fixed by a point source placed at different height,and then,the posi-tion of virtual point source can be fixed by using their linearity function.The real calibration process will be carried out by placing a point source at its virtual position,namely,the volume source is replaced with the point source.In conclusion,the position of virtual point source can be obtained through the virtual point detector.This is a completely new technology method,which will be widely applied in radioactive measurement.关键词
虚拟点源/虚拟点探测器/蒙卡计算/效率刻度Key words
virtual point source/virtual point detector/Monte Carlo method/efficiency calibration分类
能源科技引用本文复制引用
田自宁,刘文彪,陈伟,龙斌,冯天成,王雪梅,欧阳晓平..基于虚拟点探测器的虚拟点源效率刻度技术[J].强激光与粒子束,2018,30(3):62-68,7.基金项目
国家自然科学基金项目(11405134) （11405134）
