Radionuclide Ratios in Precipitation on the Territory of Belarus After the Chernobyl Accident: Calculation from Gamma-Spectrometric Measurements on Soil in May–July 1986

被引：0

作者：

A. A. Khrushchinskii

S. A. Kuten’

V. F. Minenko

O. M. Zhukova

A. A. Podgaiskaya

M. G. Germenchuk

T. A. Kukhta

S. M. Vakulovskii

V. V. Drozdovitch

机构：

[1] Belarussian State University,Research Institute of Nuclear Problems

[2] Republican Center for Radiation Control and Environmental Monitoring,undefined

[3] Ministry of Natural Resources of the Republic of Belarus,undefined

[4] Joint Institute of Informatics Problems,undefined

[5] Taifun Scientific-Industrial Association,undefined

[6] National Cancer Institute,undefined

来源：

Atomic Energy | 2014年 / 117卷

关键词：

Radionuclide; Activity Ratio; Chernobyl Accident; Radioactive Contamination; Principal Diagonal;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The correlations between the fallout density and ratio of radionuclides in different regions of Belarus after the accident at the Chernobyl NPP are investigated using data obtained by means of gamma-spectrometric measurements performed on soil in May–July 1986. It is shown that the isotopes of cesium and/or ruthenium are most suitable for reconstructing the activity of 131I in the fallout. Charts showing the isolines of the activity ratios 131I/137Cs and 134Cs/137Cs in the fallout are constructed. The geometric averages obtained for the log-normal distribution of the ratios 134Cs/137Cs and 131I/137Cs in terms of May 10, 1986 equal 0.47 and 5.4, respectively. The distribution of the activity ratio 131I/137Cs in the fallout and the correlation coefficients show that on the whole there is no consistent interrelation between the fallout indices of these radionuclides over the territory.

引用

页码：143 / 148

页数：5