Estimation of the ratio of 90Sr and 137Cs activities in the Chernobyl depositions in the territory of the Russian Federation

Title: Estimation of the ratio of 90Sr and 137Cs activities in the Chernobyl depositions in the territory of the Russian Federation

Author: Ermilov A.P., Ziborov A.M.

Reference: Journal: Radiation and Risk (Bulletin of the National Radiation and Epidemiological Registry), Year: 2001 Issue: 12

Keywords: contamination, cesium-137, strontium-90

Abstract: Correlative relationship between activities of ⁹⁰Sr to ¹³⁷Cs in condenses of the Chernobyl fallouts on April 26, 1986 was detected. The ratio was estimated with the use of data of the Institute of Global Climate and Ecology of the State Committee of Hydrometeorology and Russian Academy of Sciences. The data derived from measurements of ⁹⁰Sr, ¹³⁷Cs and ^239+240Pu in soil samples taken in Bryansk, Kaluga, Oriol and Ryazan regions in 1992. The contribution of the condensation of 90Sr in the soil samples of the Chernobyl fallout in Russia was found to be governing factor when specific activity of ¹³⁷Cs was > 2000 Bq/kg.

URL:http://cyberleninka.ru/article/n/otsenka-otnosheniya-aktivnosti-90sr-k-aktivnosti-137cs-v-chernobylskih-vypadeniyah-na-territorii-rossiyskoy-federatsii

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