Monte Carlo Calculation of Gamma Radiation Field Due to Precipitation Washout of Radon Daughters from the Atmosphere to the Ground Surface
Monte Carlo Calculation of Gamma Radiation Field Due to Precipitation Washout of Radon Daughters from the Atmosphere to the Ground Surface
复制标题
氡子体从大气到地表的降水冲刷引起的伽玛辐射场的蒙特卡罗计算
DOI：
10.5453/jhps.15.19
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发表时间：
1980
期刊：
影响因子：
--
通讯作者：
S. Minato
中科院分区：
文献类型：
--
作者：
S. Minato
本文提出了一种伽马辐射在两种介质几何结构中传播的一维蒙特卡罗输运码，用于计算由于降水从大气中冲刷到地面的短寿命氡子体所引起的辐射场的性质。为了评估该代码提供的结果的有效性，将自然环境下均匀分布的地面238U源的辐射场计算与其他研究者的数值计算进行了比较。比较表明他们之间有令人满意的一致。本文给出了已知丰度的无限平面各向同性RaB和RaC源的高度分布、通量密度和暴露率的能量和角分布的计算数据。
A one-dimensional Monte Carlo transport code for the propagation of gamma radiation in two medium geometry is developed to evaluate properties of the radiation field due to the washout of short-lived radon daughters from the atmosphere to the ground surface by precipitation. To assess the validity of the results provided by this code, the calculations on the radiation field from uniformly distributed terrestrial 238U source in the natural environment are compared with numerical calculations of other investigators. The comparison shows satisfactory agreement between them.The calculated data are presented on the height distribution and on the energy and angular distribution of flux density and exposure rate from an infinite plane isotropic RaB and RaC sources with known abundances on the ground-air interface.