Title: Origin assessment of uranium ore concentrates based on their rare-earth elemental impurity pattern
Authors: VARGA ZsoltWALLENIUS MariaMAYER Klaus
Citation: RADIOCHIMICA ACTA vol. 98 p. 771-778
Publication Year: 2010
JRC N°: JRC62340
ISSN: 0033-8230
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC62340
DOI: 10.1524/ract.2010.1777
Type: Articles in periodicals and books
Abstract: The rare-earth element pattern was used as an additional tool for the identification and origin assessment of uranium ore concentrates (yellow cakes) for nuclear forensic purposes. By this means, the source of an unknown material can be straightforwardly verified by comparing the pattern with that of a known or declared sample. In contrast to other indicators used for nuclear forensic studies, the provenance of the material can also be assessed in several cases even if no comparison sample is available due to the characteristic pattern. The milling process was found not to change the pattern and no significant elemental fractionation occurs between the rare-earth elements, thus the pattern in the yellow cakes corresponds to that found in the uranium ore.
JRC Directorate:Nuclear Safety and Security

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