The application of radiochronometry during the 4th collaborative materials exercise of the nuclear forensics international technical working group (ITWG)
Artikel i vetenskaplig tidskrift, 2018

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

Inductively coupled plasma mass spectrometry

Nuclear forensics

Radiochronometry

Uranium oxide

Thermal ionization mass spectrometry

Alpha spectrometry

Gamma spectrometry

Författare

Michael J. Kristo

Lawrence Livermore National Laboratory

Ross Williams

Lawrence Livermore National Laboratory

Amy M. Gaffney

Lawrence Livermore National Laboratory

Theresa M. Kayzar-Boggs

Lawrence Livermore National Laboratory

Kerri C. Schorzman

Lawrence Livermore National Laboratory

Petra Lagerkvist

Totalförsvarets forskningsinstitut (FOI)

Anna Vesterlund

Chalmers, Kemi och kemiteknik, Energi och material, Kärnkemi

Totalförsvarets forskningsinstitut (FOI)

Henrik Ramebäck

Totalförsvarets forskningsinstitut (FOI)

Chalmers, Kemi och kemiteknik, Energi och material, Kärnkemi

Aubrey N. Nelwamondo

South African Nuclear Energy Corporation (NECSA)

Deon Kotze

South African Nuclear Energy Corporation (NECSA)

Kyuseok Song

Korea Atomic Energy Research Institute

Sang Ho Lim

Korea Atomic Energy Research Institute

Sun-Ho Han

Korea Atomic Energy Research Institute

Chi-Gyu Lee

Korea Atomic Energy Research Institute

Ayako Okubo

Japan Atomic Energy Agency

Didier Maloubier

Le Commissariat à l’Énergie Atomique et aux Énergies Alternatives (CEA)

Daniele Cardona

Le Commissariat à l’Énergie Atomique et aux Énergies Alternatives (CEA)

Pavel Samuleev

Royal Military College of Canada

Ike Dimayuga

Canadian Nucl Labs

Zsolt Varga

Europeiska kommissionen (EU)

Maria Wallenius

Europeiska kommissionen (EU)

Klaus Mayer

Europeiska kommissionen (EU)

Elaine Loi

Australian Nuclear Science and Technology Organisation

Elizabeth Keegan

Australian Nuclear Science and Technology Organisation

Jennifer Harrison

Australian Nuclear Science and Technology Organisation

Sangeeth Thiruvoth

Australian Nuclear Science and Technology Organisation

Floyd E. Stanley

Los Alamos National Laboratory

Khal J. Spencer

Los Alamos National Laboratory

Lav Tandon

Los Alamos National Laboratory

Journal of Radioanalytical and Nuclear Chemistry

0236-5731 (ISSN) 1588-2780 (eISSN)

Vol. 315 425-434

Ämneskategorier

Mineral- och gruvteknik

Subatomär fysik

Analytisk kemi

DOI

10.1007/s10967-017-5680-5