^(125)I种子源剂量场分布的实验测定  

The Experimental Measurement of Dose Field Distribution of ^(125)I Seed Source

作　　者：王晓静[1] 张文在[1] 姚历农[1] 颜素娟[1] 冯新占[1] 段利民[1] 龚凌凌[1] 

机构地区：[1]中国原子能科学研究院同位素研究所,北京102413

出　　处：《同位素》2007年第2期98-100,共3页Journal of Isotopes

摘　　要：采用慢感光胶片法、电离室法和蒙特卡洛模拟方法测定了新研制的6711型125I种子源的剂量场分布。结果表明,三种方法测得的该种子源剂量场分布趋势基本一致,其吸收剂量率均呈指数规律下降,而且分布比较均匀,即新研制的125I种子源具有较好的剂量场分布。The dose field distribution of ^125I seed source is measured by the method of slowly sensitive film, ionized chamber and Monte Carlo simulation respectively. The results show that the trends of dose field distribution of seed source are basically agreeable. The absorbed dose rate appears exponential decay and the distribution is more eren. So the new produced ^125I seed source has a better distribution of dose field.

关 键 词：^125I种子源 蒙特卡洛模拟方法 胶片法 剂量分布 

分 类 号：R817.9[医药卫生—影像医学与核医学]