Comparative study of the determination of (238)U, (232)TH, and (40)K in geological samples using INAA and gamma-ray spectroscopy

Detalhes bibliográficos
Autor(a) principal: BARIA, ROG??RIO
Data de Publicação: 2019
Outros Autores: WATANABE, SHIGUEO, MUNITA, CASIMIRO S., SILVA, PAULO S., TATUMI, SONIA H., INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE
Tipo de documento: Artigo de conferência
Título da fonte: Repositório Institucional do IPEN
Texto Completo: http://repositorio.ipen.br/handle/123456789/30409
Resumo: Physical dating methods including thermoluminescence (TL), optically stimulated luminescence (OSL) and electron paramagnetic resonance (EPR) require the precise determination of the dose rate of experimental ionizing radiation. To determine the age of sediment by TL and OSL or EPR, it is necessary to accurately determine the exact mass fractions of 238U, 232Th, and 40K, since these concentrations are used in the calculation of the annual radiation dose. This work presents a comparative study of the determination of 238U, 232Th, and 40K using two analytical techniques: instrumental activation analysis (INAA) and ??-ray spectroscopy. The results presented in this paper are concordant between the two techniques.
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spelling 2019-12-03T18:12:51Z2019-12-03T18:12:51ZOctober 21-25, 2019http://repositorio.ipen.br/handle/123456789/304090000-0003-0546-1044Physical dating methods including thermoluminescence (TL), optically stimulated luminescence (OSL) and electron paramagnetic resonance (EPR) require the precise determination of the dose rate of experimental ionizing radiation. To determine the age of sediment by TL and OSL or EPR, it is necessary to accurately determine the exact mass fractions of 238U, 232Th, and 40K, since these concentrations are used in the calculation of the annual radiation dose. This work presents a comparative study of the determination of 238U, 232Th, and 40K using two analytical techniques: instrumental activation analysis (INAA) and ??-ray spectroscopy. The results presented in this paper are concordant between the two techniques.Submitted by Celia Satomi Uehara (celia.u-topservice@ipen.br) on 2019-12-03T18:12:51Z No. of bitstreams: 1 26161.pdf: 902185 bytes, checksum: 1b792d5c8fe1a45251723c8644b74093 (MD5)Made available in DSpace on 2019-12-03T18:12:51Z (GMT). No. of bitstreams: 1 26161.pdf: 902185 bytes, checksum: 1b792d5c8fe1a45251723c8644b74093 (MD5)569-578Associa????o Brasileira de Energia Nuclearcomparative evaluationsgamma spectroscopygeologyisotope rationeutron activation analysispotassium 40radioactivitysedimentsthorium 232uranium 238Comparative study of the determination of (238)U, (232)TH, and (40)K in geological samples using INAA and gamma-ray spectroscopyinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectINACIRio de JaneiroSantos, SP9373334013252777600600600600BARIA, ROG??RIOWATANABE, SHIGUEOMUNITA, CASIMIRO S.SILVA, PAULO S.TATUMI, SONIA H.INTERNATIONAL NUCLEAR ATLANTIC CONFERENCEinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional do IPENinstname:Instituto de Pesquisas Energéticas e Nucleares (IPEN)instacron:IPEN261612019SILVA, PAULO S.MUNITA, CASIMIRO S.WATANABE, SHIGUEOBARIA, ROG??RIO19-12Proceedings2777132533409373SILVA, PAULO S.:2777:320:NMUNITA, CASIMIRO S.:1325:320:NWATANABE, SHIGUEO:3340:-1:NBARIA, ROG??RIO:9373:340:SORIGINAL26161.pdf26161.pdfapplication/pdf902185http://repositorio.ipen.br/bitstream/123456789/30409/1/26161.pdf1b792d5c8fe1a45251723c8644b74093MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81748http://repositorio.ipen.br/bitstream/123456789/30409/2/license.txt8a4605be74aa9ea9d79846c1fba20a33MD52123456789/304092020-04-02 17:11:57.944oai:repositorio.ipen.br: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Repositório InstitucionalPUBhttp://repositorio.ipen.br/oai/requestbibl@ipen.bropendoar:45102020-04-02T17:11:57Repositório Institucional do IPEN - Instituto de Pesquisas Energéticas e Nucleares (IPEN)false
dc.title.pt_BR.fl_str_mv Comparative study of the determination of (238)U, (232)TH, and (40)K in geological samples using INAA and gamma-ray spectroscopy
title Comparative study of the determination of (238)U, (232)TH, and (40)K in geological samples using INAA and gamma-ray spectroscopy
spellingShingle Comparative study of the determination of (238)U, (232)TH, and (40)K in geological samples using INAA and gamma-ray spectroscopy
BARIA, ROG??RIO
comparative evaluations
gamma spectroscopy
geology
isotope ratio
neutron activation analysis
potassium 40
radioactivity
sediments
thorium 232
uranium 238
title_short Comparative study of the determination of (238)U, (232)TH, and (40)K in geological samples using INAA and gamma-ray spectroscopy
title_full Comparative study of the determination of (238)U, (232)TH, and (40)K in geological samples using INAA and gamma-ray spectroscopy
title_fullStr Comparative study of the determination of (238)U, (232)TH, and (40)K in geological samples using INAA and gamma-ray spectroscopy
title_full_unstemmed Comparative study of the determination of (238)U, (232)TH, and (40)K in geological samples using INAA and gamma-ray spectroscopy
title_sort Comparative study of the determination of (238)U, (232)TH, and (40)K in geological samples using INAA and gamma-ray spectroscopy
author BARIA, ROG??RIO
author_facet BARIA, ROG??RIO
WATANABE, SHIGUEO
MUNITA, CASIMIRO S.
SILVA, PAULO S.
TATUMI, SONIA H.
INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE
author_role author
author2 WATANABE, SHIGUEO
MUNITA, CASIMIRO S.
SILVA, PAULO S.
TATUMI, SONIA H.
INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv BARIA, ROG??RIO
WATANABE, SHIGUEO
MUNITA, CASIMIRO S.
SILVA, PAULO S.
TATUMI, SONIA H.
INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE
dc.subject.por.fl_str_mv comparative evaluations
gamma spectroscopy
geology
isotope ratio
neutron activation analysis
potassium 40
radioactivity
sediments
thorium 232
uranium 238
topic comparative evaluations
gamma spectroscopy
geology
isotope ratio
neutron activation analysis
potassium 40
radioactivity
sediments
thorium 232
uranium 238
description Physical dating methods including thermoluminescence (TL), optically stimulated luminescence (OSL) and electron paramagnetic resonance (EPR) require the precise determination of the dose rate of experimental ionizing radiation. To determine the age of sediment by TL and OSL or EPR, it is necessary to accurately determine the exact mass fractions of 238U, 232Th, and 40K, since these concentrations are used in the calculation of the annual radiation dose. This work presents a comparative study of the determination of 238U, 232Th, and 40K using two analytical techniques: instrumental activation analysis (INAA) and ??-ray spectroscopy. The results presented in this paper are concordant between the two techniques.
publishDate 2019
dc.date.evento.pt_BR.fl_str_mv October 21-25, 2019
dc.date.accessioned.fl_str_mv 2019-12-03T18:12:51Z
dc.date.available.fl_str_mv 2019-12-03T18:12:51Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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dc.publisher.none.fl_str_mv Associa????o Brasileira de Energia Nuclear
publisher.none.fl_str_mv Associa????o Brasileira de Energia Nuclear
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