期刊论文

Numerical Simulation of Radon Radioactive Effects for theSurface Around Uranium Mine Exhaust Outlet

中文

南华大学学报(自然科学版)

1673-0062

2018

32

1

1-9

10.19431/j.cnki.1673-0062.2018.01.001

11575080:国家自然科学基金 2015XQD38:南华大学博士科研启动基金 2016KHX54:环保部核与辐射安全监管基金项目

本校为第一机构

为了指导铀矿排风井周边地表环境的辐射防护设计,基于放射性气态流出物大气扩散的高斯烟羽模型,建立了铀矿排风井周边地表年均氡浓度以及公众个人年有效剂量的数学计算模型,研究了排风井气态流出物初始氡浓度、排风风量和源强对排风井周边地表1 km范围内年均氡浓度以及公众个人年有效剂量分布的影响.结果表明,在其他参数不变的情况下,年均氡浓度和公众个人年有效剂量的最大值随气态流出物初始氡浓度的增加而增大,随排风风量的增加而减小;最大值离井口的距离和氡致辐射的影响范围随初始氡浓度的增加而增大,随排风风量的增加而减小;相同源强下,最大值随气态流出物的初始氡浓度增加而增大,随排风风...

In order to instruct the radioactive protection design for the surface around uranium mine exhaust outlet,Gauss plume model on gaseous effluent aerial migration for the uranium mine exhaust outlet was built,and the influences of initial radon concentration of gaseous effluent,wind volume,and source intensity on the annual average values of radon concentration and individual effective dose for general around 1 km of exhaust outlet in a certain uranium mine were studied.The results show that,under the condition of other parameters unchanged,the maximum value of the annual average values of radon...