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...
Published in: | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms |
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Online Access: | http://hdl.handle.net/10261/158389 https://doi.org/10.1016/j.nimb.2015.02.066 https://doi.org/10.13039/501100003329 https://doi.org/10.13039/501100011011 |
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ftcsic:oai:digital.csic.es:10261/158389 2024-02-11T10:01:40+01:00 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, Elena López-Lora, Mercedes Villa-Alfageme, María Casacuberta, Nuria López-Gutiérrez, J. M. Pham, M. K. Junta de Andalucía Ministerio de Economía y Competitividad (España) 2015 http://hdl.handle.net/10261/158389 https://doi.org/10.1016/j.nimb.2015.02.066 https://doi.org/10.13039/501100003329 https://doi.org/10.13039/501100011011 unknown Elsevier Sí doi:10.1016/j.nimb.2015.02.066 issn: 0168-583X Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 361: 535-540 (2015) http://hdl.handle.net/10261/158389 http://dx.doi.org/10.13039/501100003329 http://dx.doi.org/10.13039/501100011011 none Sediments Plutonium isotopes Seawater Oceanography U236 artículo http://purl.org/coar/resource_type/c_6501 2015 ftcsic https://doi.org/10.1016/j.nimb.2015.02.06610.13039/50110000332910.13039/501100011011 2024-01-16T10:27:15Z 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. This work has been financed through the projects FIS2012-31853 provided by the Spanish Ministry of Economy and Competitiveness, and P-10-FQM-5956, provided by the Andalusian Government (Junta de Andalucia, Spain). Peer Reviewed Article in Journal/Newspaper Arctic Arctic Ocean Digital.CSIC (Spanish National Research Council) Arctic Arctic Ocean Pacific Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 361 535 540 |
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Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
unknown |
topic |
Sediments Plutonium isotopes Seawater Oceanography U236 |
spellingShingle |
Sediments Plutonium isotopes Seawater Oceanography U236 Chamizo, Elena López-Lora, Mercedes Villa-Alfageme, María Casacuberta, Nuria López-Gutiérrez, J. M. Pham, M. K. 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 |
topic_facet |
Sediments Plutonium isotopes Seawater Oceanography U236 |
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. This work has been financed through the projects FIS2012-31853 provided by the Spanish Ministry of Economy and Competitiveness, and P-10-FQM-5956, provided by the Andalusian Government (Junta de Andalucia, Spain). Peer Reviewed |
author2 |
Junta de Andalucía Ministerio de Economía y Competitividad (España) |
format |
Article in Journal/Newspaper |
author |
Chamizo, Elena López-Lora, Mercedes Villa-Alfageme, María Casacuberta, Nuria López-Gutiérrez, J. M. Pham, M. K. |
author_facet |
Chamizo, Elena López-Lora, Mercedes Villa-Alfageme, María Casacuberta, Nuria López-Gutiérrez, J. M. Pham, M. K. |
author_sort |
Chamizo, Elena |
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 |
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 |
publisher |
Elsevier |
publishDate |
2015 |
url |
http://hdl.handle.net/10261/158389 https://doi.org/10.1016/j.nimb.2015.02.066 https://doi.org/10.13039/501100003329 https://doi.org/10.13039/501100011011 |
geographic |
Arctic Arctic Ocean Pacific |
geographic_facet |
Arctic Arctic Ocean Pacific |
genre |
Arctic Arctic Ocean |
genre_facet |
Arctic Arctic Ocean |
op_relation |
Sí doi:10.1016/j.nimb.2015.02.066 issn: 0168-583X Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 361: 535-540 (2015) http://hdl.handle.net/10261/158389 http://dx.doi.org/10.13039/501100003329 http://dx.doi.org/10.13039/501100011011 |
op_rights |
none |
op_doi |
https://doi.org/10.1016/j.nimb.2015.02.06610.13039/50110000332910.13039/501100011011 |
container_title |
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms |
container_volume |
361 |
container_start_page |
535 |
op_container_end_page |
540 |
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1790597474021277696 |