Title: Gamma-spectrometric determination of 232U in uranium-bearing materials
Authors: ZSIGRAI JOZSEFNGUYEN Cong-TamBERLIZOV Andrey
Citation: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS vol. 359 p. 137–144
Publisher: ELSEVIER SCIENCE BV
Publication Year: 2015
JRC N°: JRC92622
ISSN: 0168-583X
URI: http://www.sciencedirect.com/science/article/pii/S0168583X15006254
http://publications.jrc.ec.europa.eu/repository/handle/JRC92622
DOI: 10.1016/j.nimb.2015.07.047
Type: Articles in periodicals and books
Abstract: The 232U content of various uranium-bearing items was measured using low-background gamma-spectrometry. The method is independent of the measurement geometry, sample form and chemical composition. Since 232U is an artificially produced isotope, it carries information about previous irradiation of the material, which is relevant for nuclear forensics, nuclear safeguards and for nuclear reactor operations. A correlation between the 232U content and 235U enrichment of the investigated samples has been established, which is consistent with theoretical predictions. It is also shown how the correlation of the mass ratio 232U/235U vs. 235U content can be used to distinguish materials contaminated with reprocessed uranium from materials made of reprocessed uranium.
JRC Directorate:Nuclear Safety and Security

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