Title: The application of radiochronometry during the 4th collaborative materials exercise of the nuclear forensics international technical working group (ITWG)
Authors: KRISTO M.WILLIAMS ROSSGAFFNEY AMYKAYZAR-BOGGS THERESASCHOZMAN KERRILAGERKVIST P.VESTERLUND ANNARAMEBÄCK HENRIKNELWAMONDO AUBREYKOTZE DEONSONG KYUSEOKLIM SANG HOHAN SUN-HOLEE CHI-GYUOKUBO AYAKOMALOUBIER DIDIERCARDONA DANIELESAMULEEV PAVELDIMAYUGA IKEVARGA ZSOLTWALLENIUS MARIAMAYER KLAUSLOI ELAINEKEEGAN ELIZABETHHARRISON JENNIFERTHIRUVOTH SANGEETHSTANLEY FLOYD E.SPENCER KHALIL J.TANDON LAV
Citation: JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY vol. 315 no. 2 p. 425-434
Publisher: SPRINGER
Publication Year: 2018
JRC N°: JRC110988
ISSN: 0236-5731
URI: https://link.springer.com/article/10.1007/s10967-017-5680-5
http://publications.jrc.ec.europa.eu/repository/handle/JRC110988
DOI: 10.1007/s10967-017-5680-5
Type: Articles in periodicals and books
Abstract: In a recent international exercise, 10 international nuclear forensics laboratories successfully performed radiochronometry on three low enriched uranium oxide samples, providing 12 analytical results using three different parent-daughter pairs serving as independent chronometers. The vast majority of the results were consistent with one another and consistent with the known processing history of the materials. In general, for these particular samples, mass spectrometry gave more accurate and more precise analytical results than decay counting measurements. In addition, the concordance of the 235U–231Pa and 234U–230Th chronometers confirmed the validity of the age dating assumptions, increasing confidence in the resulting conclusions.
JRC Directorate:Nuclear Safety and Security

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