摘要
本文基于中国原子能科学研究院研制的SGS装置,运用无源效率刻度方法,建立与实际严格匹配的蒙特卡罗模拟计算模型。运用该模型,依据待测对象的典型特征完成了探测效率数据库的运算,解决了探测效率刻度用时较长的问题。在该装置上展开了200L放射性废物桶的验证实验,平均相对偏差控制在20%以内,单桶测量时间30min以内,提高了SGS技术的探测效率。
Based on the SGS device developed by the China Institute of Atomic Energy, this paper uses the passive efficiency calibration method to establish a Monte Carlo simulation calculation model that is strictly matched with reality. Using the model, the calculation of the detection efficiency database is completed according to the typical characteristics of the object to be tested, and the problem that the detection efficiency scale is used for a long time is solved.The verification experiment of 200 L radioactive waste barrel was carried out on the device. The average relative deviation was controlled within 20%, and the single barrel measurement time was less than 30 min, which improved the detection efficiency of SGS technology.
作者
陈晨
侯素霞
张全虎
邵婕文
柏磊
CHEN Chen;HOU Su-xia;ZHANG Quan-hu;SHAO Jie-wen;BAI Lei(Department of Nuclear Engineering,Rocket Force University of Engineering,Xi'an 710025,China;China Institute of Atomic Energy,Beijing 102413,China)
出处
《核电子学与探测技术》
CAS
北大核心
2018年第6期741-747,共7页
Nuclear Electronics & Detection Technology
关键词
无源效率刻度
探测效率数据库
蒙特卡罗模拟
分段γ扫描技术
passive efficiency calibration
detection efficiency database
Monte-Carlo simulation
segmented gamma scanning device
