Vlasova N G, Drozdov D N, Chunikhin L A
Radiats Biol Radioecol. 2009 Jul-Aug;49(4):397-406.
The method for the assessment of the rural inhabitants internal dose lived in areas of the Republic of Belarus contaminated by the Chernobyl radionuclides was developed. The model is based on the individual internal doses, calculated by the WBC measurements. The data of WBC measurements of the State Dosimetric Register are used for direct assessment of internal irradiation dose, and as a basis for the model development. The dose assessment model is based on the classification of contaminated territories on the regional features of the soils, which cause 137Cs intaking with locally produced foods. The model is also based on regression of daily 137Cs intake on the density contamination of the soil. Such regression model had been made for each region. The influence of indirect factors had been taken into consideration in the dose assessment. These factors are: the number of settlement population, and the forest area around it. Its influents had been taken as correction factors. The factors had been determined from the regression model of the correction factors on a specific forest area for each region.
开发了评估居住在白俄罗斯共和国受切尔诺贝利放射性核素污染地区农村居民体内剂量的方法。该模型基于通过白细胞测量计算出的个体内部剂量。国家剂量测定登记处的白细胞测量数据用于直接评估内部照射剂量,并作为模型开发的基础。剂量评估模型基于根据土壤区域特征对受污染领土进行的分类,这些特征导致当地生产的食物摄入137Cs。该模型还基于土壤密度污染与每日137Cs摄入量的回归关系。已针对每个地区建立了此类回归模型。剂量评估中考虑了间接因素的影响。这些因素包括:居民点人口数量及其周围的森林面积。其影响已作为校正因子。这些因子是从每个地区特定森林面积的校正因子回归模型中确定的。