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A new method for quantifying 64Cu in nuclear debris samples.
Wren, Melinda S; Weberg, Alexander B; Salazar, Amanda A; Klosterman, Michael R; Eaton, Susan J; Goehring, Tanya L; Herman, Staci M; Pierson, Bruce D; Warzecha, Evan J; Dale, Gregory E; Fotiades, Nikolaos; May, Iain; Hanson, Susan K.
Afiliação
  • Wren MS; Nuclear and Radiochemistry (C-NR), Los Alamos National Laboratory, Mail Stop J-514, Los Alamos, NM, 87545, USA.
  • Weberg AB; Nuclear and Radiochemistry (C-NR), Los Alamos National Laboratory, Mail Stop J-514, Los Alamos, NM, 87545, USA. Electronic address: aweberg@lanl.gov.
  • Salazar AA; Nuclear and Radiochemistry (C-NR), Los Alamos National Laboratory, Mail Stop J-514, Los Alamos, NM, 87545, USA.
  • Klosterman MR; Nuclear and Radiochemistry (C-NR), Los Alamos National Laboratory, Mail Stop J-514, Los Alamos, NM, 87545, USA.
  • Eaton SJ; Nuclear and Radiochemistry (C-NR), Los Alamos National Laboratory, Mail Stop J-514, Los Alamos, NM, 87545, USA.
  • Goehring TL; Nuclear and Radiochemistry (C-NR), Los Alamos National Laboratory, Mail Stop J-514, Los Alamos, NM, 87545, USA.
  • Herman SM; Pacific Northwest National Laboratory, 902 Battelle Blvd., Richland, WA, 99352, USA.
  • Pierson BD; Pacific Northwest National Laboratory, 902 Battelle Blvd., Richland, WA, 99352, USA.
  • Warzecha EJ; Pacific Northwest National Laboratory, 902 Battelle Blvd., Richland, WA, 99352, USA.
  • Dale GE; Accelerator Operations and Technology (AOT-DO), Los Alamos National Laboratory, Mail Stop H-851, Los Alamos, NM, 87545, USA.
  • Fotiades N; Accelerator Operations and Technology (AOT-DO), Los Alamos National Laboratory, Mail Stop H-851, Los Alamos, NM, 87545, USA.
  • May I; Nuclear and Radiochemistry (C-NR), Los Alamos National Laboratory, Mail Stop J-514, Los Alamos, NM, 87545, USA.
  • Hanson SK; Nuclear and Radiochemistry (C-NR), Los Alamos National Laboratory, Mail Stop J-514, Los Alamos, NM, 87545, USA. Electronic address: skhanson@lanl.gov.
Talanta ; 275: 126140, 2024 Aug 01.
Article em En | MEDLINE | ID: mdl-38718535
ABSTRACT
Quantifying 64Cu in post-detonation nuclear debris samples can provide important diagnostic information regarding the structural materials used within a nuclear device. However, this task is challenging due to the weak gamma emissions associated with the decay of 64Cu, its short half-life (12.701 h), and the presence of interfering fission product radioisotopes. Large quantities of debris sample are generally needed to accurately quantify 64Cu, which can be problematic in sample-limited scenarios where other radiometric analyses are required. Herein, we present a new method for the separation of 64Cu from solutions of mixed fission products and demonstrate the quantification of its activity through use of gas-flow proportional beta counting. The new method was validated through a series of rigorous tests and was shown to improve the detection limit of 64Cu by over two orders of magnitude, from 2.5 × 106 to 1.3 × 104 atoms/sample for 100 min measurements.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2024 Tipo de documento: Article
Texto completo
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XML
PubMed Links
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2024 Tipo de documento: Article