SURFACE AND DEPTH FALLOUT DISTRIBUTION OF CS-137 AND SR-90 IN SOILS OF CACERES (SPAIN) - DOSE COMMITMENTS DUE TO EXTERNAL IRRADIATION

被引：31

作者：

BAEZA, A

DELRIO, M

MIRO, C

PANIAGUA, J

机构：

[1] Department of Physics, Faculty of Veterinary, Extremadura University, Caceres

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY-LETTERS | 1993年 / 175卷 / 04期

关键词：

D O I：

10.1007/BF02165071

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

An analysis has been made of the surface distribution of Cs-137 and Sr-90 in soils of the province of Caceres (Spain), of some 20.000 km2 area, situated on the frontier with Portugal. From the distribution of depth profiles of concentrations of these radionuclides and their fit to a negative exponential, determination was made of the mean values of the respective inventories and of the corresponding Cs-137/Sr-90 ratio. The external dose rates from the presence of these man-made isotopes in the soil are calculated and compared with that originating from the concentrations of natural radioisotopes.

引用

页码：297 / 316

页数：20

共 25 条

[1]

BAEZA A, 1992, APPL RADIAT ISOTOPES, V43, P833

[2] DETERMINATION OF SR-89 AND SR-90 RADIOACTIVE CONCENTRATIONS FROM LEAST-SQUARES FITS TO THE GROWTH DECAY CURVES [J].