Uranium assay and trace element analysis of the fourth collaborative material exercise samples by the modified Davies-Gray method and the ICP-MS/OES techniques

被引：0
作者：
Aubrey N. Nelwamondo
Lisa P. Colletti
Rachel E. Lindvall
Anna Vesterlund
Ning Xu
Angela Hiong Jun Tan
Gary R. Eppich
Victoria D. Genetti
Banyana L. Kokwane
Petra Lagerkvist
Boon Kin Pong
Henrik Ramebäck
Lav Tandon
Gert Rasmussen
Zsolt Varga
Maria Wallenius
机构：
[1] South Africa Nuclear Energy Corporation (NECSA),Department of Chemistry and Chemical Engineering
[2] Nuclear Forensics Program,undefined
[3] Los Alamos National Laboratory (LANL),undefined
[4] Swedish Defence Research Agency (FOI),undefined
[5] CBRN Defence and Security,undefined
[6] Chalmers University of Technology,undefined
[7] DSO National Laboratories,undefined
[8] Lawrence Livermore National Laboratory,undefined
[9] European Commission,undefined
[10] Joint Research Centre,undefined
[11] Directorate for Nuclear Safety and Security,undefined
来源：
Journal of Radioanalytical and Nuclear Chemistry | 2018年 / 315卷
关键词：
Nuclear forensics; Uranium assay; Trace element analysis; Impurities; ICP-MS; Davies-Gray;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
An international group of laboratories participating in CMX-4 subjected three samples to comparative nuclear forensic analysis using uranium assay and trace element analysis techniques to determine if the samples had similar or different origins. Uranium assay indicated that two pellet samples (ES-2 and ES-3) were nearly pure UO2 while the black powder sample ES-1 was primarily UO2 with UO3 and/or U3O8 forms present as impurities. Trace element analysis by five of the six participating laboratories reported molybdenum concentrations below 10 µg/g U in all of the exercise samples, suggesting the same likely facility of origin for all three samples.
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页码：379 / 394
页数：15
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