Analysis of the 40K levels in soil using gamma spectrometry

Detalhes bibliográficos
Autor(a) principal: Santos Júnior,José Araújo dos
Data de Publicação: 2005
Outros Autores: Cardoso,Jorge João Ricardo Ferreira, Silva,Cleomacio Miguel da, Silveira,Suêldo Vita, Amaral,Romilton dos Santos
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Archives of Biology and Technology
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000700033
Resumo: Potassium-40 was determined in soil in an area with 40,000 m² situated in the western State of Pernambuco, Brazil. For radiometric measurements, the gamma spectrometry method with a high purity germanium (HPGe) detector was used. Sampling of 78 soil samples has been performed at intervals of 25 m. The specific activities of 40K were calculated based on the photopeak of 1.46 MeV. Values from 541 to 3,572 Bq kg-1 were obtained (mean of 1,827 Bq kg-1). These values allowed the determination of the elemental concentrations as well as the absorbed dose rates in air, 1 m above the ground. The values varied from 1.7 to 11.5% (mean of 6%) and from 23.4 to 154.3 nGy h-1 (mean of 79 nGy h-1), respectively.
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spelling Analysis of the 40K levels in soil using gamma spectrometry40K in soil40K gamma spectrometry40K in environmental radiological protectionPotassium-40 was determined in soil in an area with 40,000 m² situated in the western State of Pernambuco, Brazil. For radiometric measurements, the gamma spectrometry method with a high purity germanium (HPGe) detector was used. Sampling of 78 soil samples has been performed at intervals of 25 m. The specific activities of 40K were calculated based on the photopeak of 1.46 MeV. Values from 541 to 3,572 Bq kg-1 were obtained (mean of 1,827 Bq kg-1). These values allowed the determination of the elemental concentrations as well as the absorbed dose rates in air, 1 m above the ground. The values varied from 1.7 to 11.5% (mean of 6%) and from 23.4 to 154.3 nGy h-1 (mean of 79 nGy h-1), respectively.Instituto de Tecnologia do Paraná - Tecpar2005-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000700033Brazilian Archives of Biology and Technology v.48 n.spe2 2005reponame:Brazilian Archives of Biology and Technologyinstname:Instituto de Tecnologia do Paraná (Tecpar)instacron:TECPAR10.1590/S1516-89132005000700033info:eu-repo/semantics/openAccessSantos Júnior,José Araújo dosCardoso,Jorge João Ricardo FerreiraSilva,Cleomacio Miguel daSilveira,Suêldo VitaAmaral,Romilton dos Santoseng2005-12-09T00:00:00Zoai:scielo:S1516-89132005000700033Revistahttps://www.scielo.br/j/babt/https://old.scielo.br/oai/scielo-oai.phpbabt@tecpar.br||babt@tecpar.br1678-43241516-8913opendoar:2005-12-09T00:00Brazilian Archives of Biology and Technology - Instituto de Tecnologia do Paraná (Tecpar)false
dc.title.none.fl_str_mv Analysis of the 40K levels in soil using gamma spectrometry
title Analysis of the 40K levels in soil using gamma spectrometry
spellingShingle Analysis of the 40K levels in soil using gamma spectrometry
Santos Júnior,José Araújo dos
40K in soil
40K gamma spectrometry
40K in environmental radiological protection
title_short Analysis of the 40K levels in soil using gamma spectrometry
title_full Analysis of the 40K levels in soil using gamma spectrometry
title_fullStr Analysis of the 40K levels in soil using gamma spectrometry
title_full_unstemmed Analysis of the 40K levels in soil using gamma spectrometry
title_sort Analysis of the 40K levels in soil using gamma spectrometry
author Santos Júnior,José Araújo dos
author_facet Santos Júnior,José Araújo dos
Cardoso,Jorge João Ricardo Ferreira
Silva,Cleomacio Miguel da
Silveira,Suêldo Vita
Amaral,Romilton dos Santos
author_role author
author2 Cardoso,Jorge João Ricardo Ferreira
Silva,Cleomacio Miguel da
Silveira,Suêldo Vita
Amaral,Romilton dos Santos
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Santos Júnior,José Araújo dos
Cardoso,Jorge João Ricardo Ferreira
Silva,Cleomacio Miguel da
Silveira,Suêldo Vita
Amaral,Romilton dos Santos
dc.subject.por.fl_str_mv 40K in soil
40K gamma spectrometry
40K in environmental radiological protection
topic 40K in soil
40K gamma spectrometry
40K in environmental radiological protection
description Potassium-40 was determined in soil in an area with 40,000 m² situated in the western State of Pernambuco, Brazil. For radiometric measurements, the gamma spectrometry method with a high purity germanium (HPGe) detector was used. Sampling of 78 soil samples has been performed at intervals of 25 m. The specific activities of 40K were calculated based on the photopeak of 1.46 MeV. Values from 541 to 3,572 Bq kg-1 were obtained (mean of 1,827 Bq kg-1). These values allowed the determination of the elemental concentrations as well as the absorbed dose rates in air, 1 m above the ground. The values varied from 1.7 to 11.5% (mean of 6%) and from 23.4 to 154.3 nGy h-1 (mean of 79 nGy h-1), respectively.
publishDate 2005
dc.date.none.fl_str_mv 2005-10-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000700033
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000700033
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-89132005000700033
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Instituto de Tecnologia do Paraná - Tecpar
publisher.none.fl_str_mv Instituto de Tecnologia do Paraná - Tecpar
dc.source.none.fl_str_mv Brazilian Archives of Biology and Technology v.48 n.spe2 2005
reponame:Brazilian Archives of Biology and Technology
instname:Instituto de Tecnologia do Paraná (Tecpar)
instacron:TECPAR
instname_str Instituto de Tecnologia do Paraná (Tecpar)
instacron_str TECPAR
institution TECPAR
reponame_str Brazilian Archives of Biology and Technology
collection Brazilian Archives of Biology and Technology
repository.name.fl_str_mv Brazilian Archives of Biology and Technology - Instituto de Tecnologia do Paraná (Tecpar)
repository.mail.fl_str_mv babt@tecpar.br||babt@tecpar.br
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