An interlaboratory collaboration to determine consensus 231Pa/235U model ages of a uranium certified reference material for nuclear forensics

Kayzar-Boggs, Theresa Marie; Treinen, Kerri C.; Okubo, Ayako; Denton, Joanna S.; Gaffney, Amy M.; Miller, Martha M.; Steiner, Robert Ernest; Wende, Allison Marie; Williams, Ross W.

doi:10.1007/s10967-020-07030-x

Title: An interlaboratory collaboration to determine consensus ²³¹Pa/²³⁵U model ages of a uranium certified reference material for nuclear forensics

Journal Article · Thu Feb 06 00:00:00 EST 2020 · Journal of Radioanalytical and Nuclear Chemistry

DOI:https://doi.org/10.1007/s10967-020-07030-x· OSTI ID:1688757

^[1]; Treinen, Kerri C. ^[2]; Okubo, Ayako ^[3];

^[1]; Gaffney, Amy M. ^[2]; Miller, Martha M. ^[4];

^[1];

^[1]; Williams, Ross W. ^[2]

Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Japan Atomic Energy Agency (JAEA), Ibaraki (Japan)
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Univ. of Rochester, NY (United States)

Application of the ²³¹Pa/²³⁵U radiochronometer for nuclear forensic investigations is challenged by a lack of certified reference materials with ²³¹Pa/²³⁵U model purification dates. The Japan Atomic Energy Agency, Los Alamos National Laboratory, and Lawrence Livermore National Laboratory completed an interlaboratory study measuring ²³¹Pa/²³⁵U model ages of New Brunswick Laboratory CRM U100. Results from independent laboratories were combined to calculate a consensus ²³¹Pa/²³⁵U model purification date for CRM U100 of March 26, 1959 ± 237 days. This ²³¹Pa/²³⁵U consensus date for CRM U100 may be used by the nuclear forensic community for quality control of ²³¹Pa/²³⁵U radiochronometry measurements of unknown materials.

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Research Organization:: Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA), Office of Defense Nuclear Nonproliferation

Grant/Contract Number:: AC52-07NA27344; 89233218CNA000001

OSTI ID:: 1688757

Alternate ID(s):: OSTI ID: 1673838

Report Number(s):: LA-UR-19-31675; LLNL-JRNL-811967; TRN: US2204136

Journal Information:: Journal of Radioanalytical and Nuclear Chemistry, Vol. 323, Issue 3; ISSN 0236-5731

Publisher:: SpringerCopyright Statement

Country of Publication:: United States

Language:: English

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Title: An interlaboratory collaboration to determine consensus 231Pa/235U model ages of a uranium certified reference material for nuclear forensics

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References (20)

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Title: An interlaboratory collaboration to determine consensus ²³¹Pa/²³⁵U model ages of a uranium certified reference material for nuclear forensics