原子能科学技术Issue(1)：147-153,7.DOI:10.7538/yzk.2015.49.01.0147
双探测位置分段γ扫描系统研究
Research of Two-measurement Position Segmented Gamma Scanning System
摘要
Abstract
Based on the two‐measurement position segmented gamma scanning ,the effi‐ciency calculation method of the circular radioactivity source was deduced .According to the source position ,its detection efficiency could be calculated in time by this method . A new detection system was built on this basis ,which could automatically detect the waste drums .This system was used to measure the simulated waste drums ,which was composed of single and multiple 60Co and 137Cs in polyurethane and wood .The average relative errors of single source and multiple sources are 10% and 7.9% ,respectively . The result was better than that measured by the traditional segmented gamma scanning . At last the minimum detection limit of the system was estimated according to the meas‐urement environment .关键词
分段γ扫描/放射性废物/探测效率/等效环形放射源Key words
segmented gamma scanning/radioactive waste/detection efficiency/equiva-lent circle radioactive source分类
能源科技引用本文复制引用
钱楠,顾卫国,王川,王德忠..双探测位置分段γ扫描系统研究[J].原子能科学技术,2015,(1):147-153,7.基金项目
博士学科点专项科研基金资助项目（20120073130009）；国家自然科学基金资助项目（11175118）；上海交通大学青年教师科研起步基金资助项目 （）
