DETERMINATION OF THE URANIUM CONTENT AND ISOTOPIC COMPOSITION OF HOT PARTICLES AFTER THE CHERNOBYL ACCIDENT

Citation
Ay. Lyul et Gm. Kolesov, DETERMINATION OF THE URANIUM CONTENT AND ISOTOPIC COMPOSITION OF HOT PARTICLES AFTER THE CHERNOBYL ACCIDENT, Journal of analytical chemistry, 50(11), 1995, pp. 1098-1101
Citations number
15
Categorie Soggetti
Chemistry Analytical
ISSN journal
10619348
Volume
50
Issue
11
Year of publication
1995
Pages
1098 - 1101
Database
ISI
SICI code
1061-9348(1995)50:11<1098:DOTUCA>2.0.ZU;2-I
Abstract
The uranium content and isotopic composition of hot particles from the Chernobyl nuclear power plant region were determined by instrumental neutron-activation analysis. The uranium content of the particles rang ed from fractions of a percent to several tens of percents, and the is otopic composition corresponded to the irradiated nuclear fuel. Two pa rticles with anomalously high enrichment in U-235 were found. A simpli fied but reasonably accurate and rapid method for evaluating the U-235 content of nuclear fuel without using a standard was suggested on the basis of the relationship found between the U-235 content of uranium contained in the hot particles and the ratio of induced radioactivity Np-239(U-238)/Mo-99(U-235).