Title: Validation of reference materials for uranium radiochronometry in the frame of nuclear forensic investigations
Authors: VARGA ZSOLTMAYER KlausBONAMICI Chloe E.HUBERT A.HUTCHEON IanKINMAN WilliamKRISTO M.POINTURIER F.SPENCER Khalil J.STANLEY Floyd E.STEINER Robert E.TANDON LavWILLIAMS Ross
Citation: APPLIED RADIATION AND ISOTOPES vol. 102 p. 81-86
Publisher: PERGAMON-ELSEVIER SCIENCE LTD
Publication Year: 2015
JRC N°: JRC92182
ISSN: 0969-8043
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC92182
DOI: 10.1016/j.apradiso.2015.05.005
Type: Articles in periodicals and books
Abstract: The results of a joint effort by expert nuclear forensic laboratories in the area of age dating of uranium, i.e. the elapsed time since the last chemical purification of the material are presented and discussed. Completely separated uranium materials of known production date were distributed among the laboratories, and the samples were dated according to routine laboratory procedures by the measurement of the 230Th/234U ratio. The measurement results were in good agreement with the known production date showing that the concept for preparing uranium age dating reference material based on complete separation is valid. Detailed knowledge of the laboratory procedures used for uranium age dating allows the identification of possible improvements in the current protocols and the development of improved practice in the future. The availability of age dating reference materials as well as the evolvement of the age dating best-practice protocol will increase the relevance and applicability of age dating as part of the tool-kit available for nuclear forensic investigations.
JRC Directorate:Nuclear Safety and Security

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