Analysis of 236U and plutonium isotopes, 239,240Pu, on the 1 MV AMS system at the Centro Nacional de Aceleradores, as a potential tool in oceanography

The performance of the 1 MV AMS system at the CNA (Centro Nacional de Aceleradores, Seville, Spain) for 236U and 239,240Pu measurements has been extensively investigated. A very promising 236U/238U abundance sensitivity of about 3 × 10−11 has been recently achieved, and background figures for 239Pu...

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Autores: Chamizo Calvo, Elena, López Lora, Mercedes, Villa Alfageme, María, Casacuberta, Nuria, López Gutiérrez, José María, Pham, Mai Khanh
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2015
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/148037
Acceso en línea:https://hdl.handle.net/11441/148037
https://doi.org/10.1016/j.nimb.2015.02.066
Access Level:acceso abierto
Palabra clave:Plutonium isotopes
U236
Seawater
Sediments
Oceanography
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spelling Analysis of 236U and plutonium isotopes, 239,240Pu, on the 1 MV AMS system at the Centro Nacional de Aceleradores, as a potential tool in oceanographyChamizo Calvo, ElenaLópez Lora, MercedesVilla Alfageme, MaríaCasacuberta, NuriaLópez Gutiérrez, José MaríaPham, Mai KhanhPlutonium isotopesU236SeawaterSedimentsOceanographyThe performance of the 1 MV AMS system at the CNA (Centro Nacional de Aceleradores, Seville, Spain) for 236U and 239,240Pu measurements has been extensively investigated. A very promising 236U/238U abundance sensitivity of about 3 × 10−11 has been recently achieved, and background figures for 239Pu of about 106 atoms were reported in the past. These promising results lead to the use of conventional low energy AMS systems for the analysis of 236U and 239Pu and its further application in environmental studies. First 236U results obtained on our AMS system for marine samples (sediments and water) are presented here. Results of two new IAEA reference materials (IAEA-410 and IAEA-412, marine sediments from Pacific Ocean) are reported. The obtained 236U/239Pu atom ratios, of 0.12 and 0.022, respectively, show a dependency with the contamination source (i.e. local fallout from the US tests performed at the Bikini Atoll and general fallout). The results obtained for a third IAEA reference material (IAEA-381, seawater from the Irish Sea), are also presented. In the following, the uranium and plutonium isotopic compositions obtained on a set of 5 intercomparison seawater samples from the Arctic Ocean provided by the ETH Zürich are discussed. By comparing them with the obtained results on the 600 kV AMS facility Tandy at the ETH Zürich, we demonstrate the solidity of the CNA technique for 236U/238U determinations at, at least, 7 × 10−10 level. Finally, these results are discussed in their environmental context.Ministerio de Economía y Competitividad FIS2012- 31853Junta de Andalucía P-10-FQM-5956ScienceDirectFísica Aplicada IFísica Aplicada IIMinisterio de Economía y Competitividad (MINECO). EspañaJunta de Andalucía2015info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/148037https://doi.org/10.1016/j.nimb.2015.02.066reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 361, 535-540.FIS2012- 31853P-10-FQM-5956https://www.sciencedirect.com/science/article/pii/S0168583X15001913info:eu-repo/semantics/openAccessoai:idus.us.es:11441/1480372026-06-17T12:51:07Z
dc.title.none.fl_str_mv Analysis of 236U and plutonium isotopes, 239,240Pu, on the 1 MV AMS system at the Centro Nacional de Aceleradores, as a potential tool in oceanography
title Analysis of 236U and plutonium isotopes, 239,240Pu, on the 1 MV AMS system at the Centro Nacional de Aceleradores, as a potential tool in oceanography
spellingShingle Analysis of 236U and plutonium isotopes, 239,240Pu, on the 1 MV AMS system at the Centro Nacional de Aceleradores, as a potential tool in oceanography
Chamizo Calvo, Elena
Plutonium isotopes
U236
Seawater
Sediments
Oceanography
title_short Analysis of 236U and plutonium isotopes, 239,240Pu, on the 1 MV AMS system at the Centro Nacional de Aceleradores, as a potential tool in oceanography
title_full Analysis of 236U and plutonium isotopes, 239,240Pu, on the 1 MV AMS system at the Centro Nacional de Aceleradores, as a potential tool in oceanography
title_fullStr Analysis of 236U and plutonium isotopes, 239,240Pu, on the 1 MV AMS system at the Centro Nacional de Aceleradores, as a potential tool in oceanography
title_full_unstemmed Analysis of 236U and plutonium isotopes, 239,240Pu, on the 1 MV AMS system at the Centro Nacional de Aceleradores, as a potential tool in oceanography
title_sort Analysis of 236U and plutonium isotopes, 239,240Pu, on the 1 MV AMS system at the Centro Nacional de Aceleradores, as a potential tool in oceanography
dc.creator.none.fl_str_mv Chamizo Calvo, Elena
López Lora, Mercedes
Villa Alfageme, María
Casacuberta, Nuria
López Gutiérrez, José María
Pham, Mai Khanh
author Chamizo Calvo, Elena
author_facet Chamizo Calvo, Elena
López Lora, Mercedes
Villa Alfageme, María
Casacuberta, Nuria
López Gutiérrez, José María
Pham, Mai Khanh
author_role author
author2 López Lora, Mercedes
Villa Alfageme, María
Casacuberta, Nuria
López Gutiérrez, José María
Pham, Mai Khanh
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Física Aplicada I
Física Aplicada II
Ministerio de Economía y Competitividad (MINECO). España
Junta de Andalucía
dc.subject.none.fl_str_mv Plutonium isotopes
U236
Seawater
Sediments
Oceanography
topic Plutonium isotopes
U236
Seawater
Sediments
Oceanography
description The performance of the 1 MV AMS system at the CNA (Centro Nacional de Aceleradores, Seville, Spain) for 236U and 239,240Pu measurements has been extensively investigated. A very promising 236U/238U abundance sensitivity of about 3 × 10−11 has been recently achieved, and background figures for 239Pu of about 106 atoms were reported in the past. These promising results lead to the use of conventional low energy AMS systems for the analysis of 236U and 239Pu and its further application in environmental studies. First 236U results obtained on our AMS system for marine samples (sediments and water) are presented here. Results of two new IAEA reference materials (IAEA-410 and IAEA-412, marine sediments from Pacific Ocean) are reported. The obtained 236U/239Pu atom ratios, of 0.12 and 0.022, respectively, show a dependency with the contamination source (i.e. local fallout from the US tests performed at the Bikini Atoll and general fallout). The results obtained for a third IAEA reference material (IAEA-381, seawater from the Irish Sea), are also presented. In the following, the uranium and plutonium isotopic compositions obtained on a set of 5 intercomparison seawater samples from the Arctic Ocean provided by the ETH Zürich are discussed. By comparing them with the obtained results on the 600 kV AMS facility Tandy at the ETH Zürich, we demonstrate the solidity of the CNA technique for 236U/238U determinations at, at least, 7 × 10−10 level. Finally, these results are discussed in their environmental context.
publishDate 2015
dc.date.none.fl_str_mv 2015
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/148037
https://doi.org/10.1016/j.nimb.2015.02.066
url https://hdl.handle.net/11441/148037
https://doi.org/10.1016/j.nimb.2015.02.066
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 361, 535-540.
FIS2012- 31853
P-10-FQM-5956
https://www.sciencedirect.com/science/article/pii/S0168583X15001913
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv ScienceDirect
publisher.none.fl_str_mv ScienceDirect
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.300719

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