skip to main content

Title: Determination of the uranium content and isotopic composition of hot particles after the Chernobyl accident

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 ranged from fractions of a percent to several tens of percents, and the isotopic composition corresponded to the irradiated nuclear fuel. Two particles with anomalously high enrichment in {sup 235}U were found. A simplified but reasonably accurate and rapid method for evaluating the {sup 235}U content of nuclear fuel without using a standard was suggested on the basis of the relationship found between the {sup 235}U content of uranium contained in the hot particles and the ratio of induced radioactivity {sup 239}Np({sup 238}U)/{sup 99}Mo({sup 235}U).
Authors:
;  [1]
  1. Vernadsky Inst. of Geochemistry and Analytical Chemistry, Moscow (Russian Federation)
Publication Date:
OSTI Identifier:
456733
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Analytical Chemistry; Journal Volume: 50; Journal Issue: 11; Other Information: PBD: Nov 1995; TN: Translated from Zhurnal Analiticheskoi Khimii; 50: No. 11, 1199-1202(1995)
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; CHERNOBYLSK-4 REACTOR; FALLOUT; URANIUM ISOTOPES; ABUNDANCE; SOILS; NEUTRON ACTIVATION ANALYSIS; REACTOR ACCIDENTS; ISOTOPE RATIO; NEPTUNIUM 239; MOLYBDENUM 99; IODINE 131