The application of radiochronometry during the 4th collaborative materials exercise of the nuclear forensics international technical working group (ITWG) [Radiochronometry in the CMX-4 exercise]

Kristo, Michael J.; Williams, Ross; Gaffney, Amy M.; Kayzar-Boggs, Theresa M.; Schorzman, Kerri C.; Lagerkvist, Petra; Vesterlund, Anna; Ramebäck, Henrik; Nelwamondo, Aubrey N.; Kotze, Deon; Song, Kyuseok; Lim, Sang Ho; Han, Sun -Ho; Lee, Chi -Gyu; Okubo, Ayako; Maloubier, Didier; Cardona, Danièle; Samuleev, Pavel; Dimayuga, Ike; Varga, Zsolt; Wallenius, Maria; Mayer, Klaus; Loi, Elaine; Keegan, Elizabeth; Harrison, Jennifer; Thiruvoth, Sangeeth; Stanley, Floyd E.; Spencer, Khal J.; Tandon, Lav

doi:10.1007/s10967-017-5680-5

The application of radiochronometry during the 4th collaborative materials exercise of the nuclear forensics international technical working group (ITWG) [Radiochronometry in the CMX-4 exercise]

Journal Article · Tue Feb 06 00:00:00 EST 2018 · Journal of Radioanalytical and Nuclear Chemistry

DOI:https://doi.org/10.1007/s10967-017-5680-5· OSTI ID:1475192

Kristo, Michael J. ^[1]; Williams, Ross ^[1]; Gaffney, Amy M. ^[1]; Kayzar-Boggs, Theresa M. ^[1]; Schorzman, Kerri C. ^[1]; Lagerkvist, Petra ^[2]; Vesterlund, Anna ^[3]; Ramebäck, Henrik ^[3]; Nelwamondo, Aubrey N. ^[4]; Kotze, Deon ^[4]; Song, Kyuseok ^[5]; Lim, Sang Ho ^[5]; Han, Sun -Ho ^[5]; Lee, Chi -Gyu ^[5]; Okubo, Ayako ^[6]; Maloubier, Didier ^[7]; Cardona, Danièle ^[7]; Samuleev, Pavel ^[8]; Dimayuga, Ike ^[9]; Varga, Zsolt ^[10] more »

Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Swedish Defence Research Agency, Umea (Sweden)
Swedish Defence Research Agency, Umea (Sweden); Chalmers Univ. of Technology, Goteborg (Sweden)
South Africa Nuclear Energy Corp. (Necsa), Pretoria (South Africa)
Korea Atomic Energy Research Institute, Daejeon (Korea)
Japan Atomic Energy Agency, Tokai (Japan)
Commissariat a l'Energie Atomique et aux Energies Alternatives, ls-Sur-Tille (France)
Royal Military College of Canada, Kingston, ON (Canada)
Canadian Nuclear Laboratories, Chalk River, ON (Canada)
European Commission, Karlsruhe (Germany)
Australian Nuclear Science and Technology Organisation, Sydney (Australia)
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

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. Additionally, the concordance of the ²³⁵U–²³¹Pa and ²³⁴U–²³⁰Th chronometers confirmed the validity of the age dating assumptions, increasing confidence in the resulting conclusions.

View Accepted Manuscript (DOE)

Research Organization:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: AC52-07NA27344

OSTI ID:: 1475192

Alternate ID(s):: OSTI ID: 22693512

Report Number(s):: LLNL-JRNL--686417; 812819

Journal Information:: Journal of Radioanalytical and Nuclear Chemistry, Journal Name: Journal of Radioanalytical and Nuclear Chemistry Journal Issue: 2 Vol. 315; ISSN 0236-5731

Publisher:: SpringerCopyright Statement

Country of Publication:: United States

Language:: English

References (15)

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The application of radiochronometry during the 4th collaborative materials exercise of the nuclear forensics international technical working group (ITWG) [Radiochronometry in the CMX-4 exercise]

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