Natural radium isotopes in waters determined with gamma-ray spectrometry using a HPGe detector

Detalhes bibliográficos
Autor(a) principal: Patricio, Marta L. V. [UNESP]
Data de Publicação: 2021
Outros Autores: Bonotto, Daniel M. [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1007/s10967-020-07517-7
http://hdl.handle.net/11449/205673
Resumo: This paper describes a methodology developed to measure the activity concentration of the four natural radium isotopes 226Ra, 228Ra, 224Ra and 223Ra in water samples, using γ-ray analysis performed with a hyperpure germanium detector (HPGe). The detector efficiency was properly determined using a set of thorium standards exhibiting concentrations between 10 and 10,000 μg/g. The developed analytical protocol was applied for evaluating the radium activity concentration in groundwater samples providing from different aquifer systems in three Brazilian states. The results were compared with the guideline reference values for 226Ra and 228Ra as proposed by the Brazilian and WHO legislations.
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spelling Natural radium isotopes in waters determined with gamma-ray spectrometry using a HPGe detectorGamma ray spectrometryGroundwater systemsHPGe detectorRadium isotopesThis paper describes a methodology developed to measure the activity concentration of the four natural radium isotopes 226Ra, 228Ra, 224Ra and 223Ra in water samples, using γ-ray analysis performed with a hyperpure germanium detector (HPGe). The detector efficiency was properly determined using a set of thorium standards exhibiting concentrations between 10 and 10,000 μg/g. The developed analytical protocol was applied for evaluating the radium activity concentration in groundwater samples providing from different aquifer systems in three Brazilian states. The results were compared with the guideline reference values for 226Ra and 228Ra as proposed by the Brazilian and WHO legislations.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Departamento de Geologia Universidade Estadual Paulista (UNESP), Câmpus de Rio Claro, Av. 24-A No.1515, C.P. 178, CEPDepartamento de Geologia Universidade Estadual Paulista (UNESP), Câmpus de Rio Claro, Av. 24-A No.1515, C.P. 178, CEPUniversidade Estadual Paulista (Unesp)Patricio, Marta L. V. [UNESP]Bonotto, Daniel M. [UNESP]2021-06-25T10:19:20Z2021-06-25T10:19:20Z2021-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article403-416http://dx.doi.org/10.1007/s10967-020-07517-7Journal of Radioanalytical and Nuclear Chemistry, v. 327, n. 1, p. 403-416, 2021.1588-27800236-5731http://hdl.handle.net/11449/20567310.1007/s10967-020-07517-72-s2.0-85098670908Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Radioanalytical and Nuclear Chemistryinfo:eu-repo/semantics/openAccess2021-10-22T13:12:51Zoai:repositorio.unesp.br:11449/205673Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-22T13:12:51Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Natural radium isotopes in waters determined with gamma-ray spectrometry using a HPGe detector
title Natural radium isotopes in waters determined with gamma-ray spectrometry using a HPGe detector
spellingShingle Natural radium isotopes in waters determined with gamma-ray spectrometry using a HPGe detector
Patricio, Marta L. V. [UNESP]
Gamma ray spectrometry
Groundwater systems
HPGe detector
Radium isotopes
title_short Natural radium isotopes in waters determined with gamma-ray spectrometry using a HPGe detector
title_full Natural radium isotopes in waters determined with gamma-ray spectrometry using a HPGe detector
title_fullStr Natural radium isotopes in waters determined with gamma-ray spectrometry using a HPGe detector
title_full_unstemmed Natural radium isotopes in waters determined with gamma-ray spectrometry using a HPGe detector
title_sort Natural radium isotopes in waters determined with gamma-ray spectrometry using a HPGe detector
author Patricio, Marta L. V. [UNESP]
author_facet Patricio, Marta L. V. [UNESP]
Bonotto, Daniel M. [UNESP]
author_role author
author2 Bonotto, Daniel M. [UNESP]
author2_role author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Patricio, Marta L. V. [UNESP]
Bonotto, Daniel M. [UNESP]
dc.subject.por.fl_str_mv Gamma ray spectrometry
Groundwater systems
HPGe detector
Radium isotopes
topic Gamma ray spectrometry
Groundwater systems
HPGe detector
Radium isotopes
description This paper describes a methodology developed to measure the activity concentration of the four natural radium isotopes 226Ra, 228Ra, 224Ra and 223Ra in water samples, using γ-ray analysis performed with a hyperpure germanium detector (HPGe). The detector efficiency was properly determined using a set of thorium standards exhibiting concentrations between 10 and 10,000 μg/g. The developed analytical protocol was applied for evaluating the radium activity concentration in groundwater samples providing from different aquifer systems in three Brazilian states. The results were compared with the guideline reference values for 226Ra and 228Ra as proposed by the Brazilian and WHO legislations.
publishDate 2021
dc.date.none.fl_str_mv 2021-06-25T10:19:20Z
2021-06-25T10:19:20Z
2021-01-01
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1007/s10967-020-07517-7
Journal of Radioanalytical and Nuclear Chemistry, v. 327, n. 1, p. 403-416, 2021.
1588-2780
0236-5731
http://hdl.handle.net/11449/205673
10.1007/s10967-020-07517-7
2-s2.0-85098670908
url http://dx.doi.org/10.1007/s10967-020-07517-7
http://hdl.handle.net/11449/205673
identifier_str_mv Journal of Radioanalytical and Nuclear Chemistry, v. 327, n. 1, p. 403-416, 2021.
1588-2780
0236-5731
10.1007/s10967-020-07517-7
2-s2.0-85098670908
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Journal of Radioanalytical and Nuclear Chemistry
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 403-416
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1803047201776074752

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