由暴露量估算子体有效剂量方法的初步研究  

PRELIMILARY STUDY ON A METHOD FOR EVALUATING EFFECTIVE DOSE TO THORON PROGENIES BASED ON THORON EXPOSURE

作　　者：肖德涛[1] 赵桂芝[1] 林祖滨[1] 梁干庄[2] 

机构地区：[1]南华大学核科学技术学院,衡阳421001 [2]香港大学物理系

出　　处：《辐射防护》2004年第2期100-109,共10页Radiation Protection

基　　金：国家自然科学基金资助项目 (10 0 75 0 83)

摘　　要：采用一维扩散模型研究了室内、子体和及其子体平衡因数 (FTh)的分布规律。讨论了FTh随墙面析出率、室内通风状况和空气含尘状况的变化。介绍了通过选取合适的FTh,由暴露量直接估算子体所致有效剂量的方法。The distribution characteristics of indoor thoron,thoron progenies and their equilibrium factor F _Th were studied by using the theoretical model of one-dimentional diffusion. The variations of F _Th with exhalation rates of thoron from wall surfaces,indoor ventillation rates and indoor dust concentrations were discussed. If a suitable F _Th is determined,the effective dose to thoron progenies can be calculated based on thoron exposure.

关 键 词：(气土) 平衡因数 氡 固体核径迹探测器 SSNTD 半衰期 辐射监测 

分 类 号：R144.1[医药卫生—公共卫生与预防医学]