Reaching environmental levels of 244Pu by accelerator mass spectrometry at the Centro Nacional de Aceleradores

244Pu (T1/2 = 81 My) is the longest-lived, most minor, and the most understudied Pu isotope. The anthropogenic production of 244Pu is linked to nuclear detonations. Reported 244Pu/239Pu atom ratios in environmental samples range from below 10-6 to above 10-3. This work discusses the performance of t...

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Detalles Bibliográficos
Autores: Chamizo, Elena, López-Lora, Mercedes, Levy, Isabelle, Lérida Toro, Victoria
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2024
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/374141
Acceso en línea:http://hdl.handle.net/10261/374141
https://api.elsevier.com/content/abstract/scopus_id/85197547895
Access Level:acceso abierto
Palabra clave:244Pu
AMS
Pu
236U
IAEA-412
IAEA-465
IAEA-385
CNA
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spelling Reaching environmental levels of 244Pu by accelerator mass spectrometry at the Centro Nacional de AceleradoresChamizo, ElenaLópez-Lora, MercedesLevy, IsabelleLérida Toro, Victoria244PuAMSPu236UIAEA-412IAEA-465IAEA-385CNA244Pu (T1/2 = 81 My) is the longest-lived, most minor, and the most understudied Pu isotope. The anthropogenic production of 244Pu is linked to nuclear detonations. Reported 244Pu/239Pu atom ratios in environmental samples range from below 10-6 to above 10-3. This work discusses the performance of the 1 MV Accelerator Mass Spectrometry system at the Centro Nacional de Aceleradores (CNA, Seville, Spain) to analyse 244Pu at environmental levels. The presence of 232Th traces in the Pu sample limits the sensitivity of the technique through the formation of the diatomic trication (232Th12C)3+, of mass 244 u, which must be suppressed by adjusting the stripper gas pressure. A244Pu background of 0.0075 fg (2 × 104 at) is demonstrated for samples that have undergone a chemical treatment. The reliability of the technique is proved through the analysis of three reference sediments provided by the International Atomic Energy Agency (IAEA-412, IAEA-465, IAEA-385). 244Pu results are complemented with 239Pu, 240Pu, 241Pu and 236U and their relative isotopic abundances are discussed.This work has been financed through the Grant PID2022-140680NB-I00 funded by the Spanish Government (Ministerio de Ciencia, Innovación y Universidades, MCIN/AEI/10.13039/501100011033) and by the European Union. M. López-Lora received funding from the European Commission through the HORIZON-MSCA-2022-PF-01-01 MSCA Postdoctoral Fellowships 2022 (Grant agreement ID: 101106068). The IAEA is grateful to the Government of the Principality of Monaco for the support provided to its Marine Environment Laboratories.Peer reviewedElsevierMinisterio de Ciencia, Innovación y Universidades (España)Agencia Estatal de Investigación (España)European CommissionConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202420242024info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10261/374141https://api.elsevier.com/content/abstract/scopus_id/85197547895reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2022-140680NB-I00The underlying dataset has been published as supplementary material of the article in the publisher platform at DOI http://dx.doi.org/10.1016/j.jenvrad.2024.107485http://dx.doi.org/10.1016/j.jenvrad.2024.107485Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3741412026-05-22T06:33:51Z
dc.title.none.fl_str_mv Reaching environmental levels of 244Pu by accelerator mass spectrometry at the Centro Nacional de Aceleradores
title Reaching environmental levels of 244Pu by accelerator mass spectrometry at the Centro Nacional de Aceleradores
spellingShingle Reaching environmental levels of 244Pu by accelerator mass spectrometry at the Centro Nacional de Aceleradores
Chamizo, Elena
244Pu
AMS
Pu
236U
IAEA-412
IAEA-465
IAEA-385
CNA
title_short Reaching environmental levels of 244Pu by accelerator mass spectrometry at the Centro Nacional de Aceleradores
title_full Reaching environmental levels of 244Pu by accelerator mass spectrometry at the Centro Nacional de Aceleradores
title_fullStr Reaching environmental levels of 244Pu by accelerator mass spectrometry at the Centro Nacional de Aceleradores
title_full_unstemmed Reaching environmental levels of 244Pu by accelerator mass spectrometry at the Centro Nacional de Aceleradores
title_sort Reaching environmental levels of 244Pu by accelerator mass spectrometry at the Centro Nacional de Aceleradores
dc.creator.none.fl_str_mv Chamizo, Elena
López-Lora, Mercedes
Levy, Isabelle
Lérida Toro, Victoria
author Chamizo, Elena
author_facet Chamizo, Elena
López-Lora, Mercedes
Levy, Isabelle
Lérida Toro, Victoria
author_role author
author2 López-Lora, Mercedes
Levy, Isabelle
Lérida Toro, Victoria
author2_role author
author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia, Innovación y Universidades (España)
Agencia Estatal de Investigación (España)
European Commission
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv 244Pu
AMS
Pu
236U
IAEA-412
IAEA-465
IAEA-385
CNA
topic 244Pu
AMS
Pu
236U
IAEA-412
IAEA-465
IAEA-385
CNA
description 244Pu (T1/2 = 81 My) is the longest-lived, most minor, and the most understudied Pu isotope. The anthropogenic production of 244Pu is linked to nuclear detonations. Reported 244Pu/239Pu atom ratios in environmental samples range from below 10-6 to above 10-3. This work discusses the performance of the 1 MV Accelerator Mass Spectrometry system at the Centro Nacional de Aceleradores (CNA, Seville, Spain) to analyse 244Pu at environmental levels. The presence of 232Th traces in the Pu sample limits the sensitivity of the technique through the formation of the diatomic trication (232Th12C)3+, of mass 244 u, which must be suppressed by adjusting the stripper gas pressure. A244Pu background of 0.0075 fg (2 × 104 at) is demonstrated for samples that have undergone a chemical treatment. The reliability of the technique is proved through the analysis of three reference sediments provided by the International Atomic Energy Agency (IAEA-412, IAEA-465, IAEA-385). 244Pu results are complemented with 239Pu, 240Pu, 241Pu and 236U and their relative isotopic abundances are discussed.
publishDate 2024
dc.date.none.fl_str_mv 2024
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/374141
https://api.elsevier.com/content/abstract/scopus_id/85197547895
url http://hdl.handle.net/10261/374141
https://api.elsevier.com/content/abstract/scopus_id/85197547895
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2022-140680NB-I00
The underlying dataset has been published as supplementary material of the article in the publisher platform at DOI http://dx.doi.org/10.1016/j.jenvrad.2024.107485
http://dx.doi.org/10.1016/j.jenvrad.2024.107485
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
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