A general methodology to determine natural radionuclides by well-type HPGe detectors

This work aims to determine natural radionuclides (210Pb, 228,226Ra, 234,228Th and 40K) in NORM samples by well-type HPGe detectors because they are of vital importance in studies on environmental samples. For this, a novel methodology has been developed, based on obtaining a general function for th...

Descripción completa

Detalles Bibliográficos
Autores: Barba Lobo, Alejandro, Gutiérrez de San Miguel Herrera, Enrique, Lozano Bermejo, Rafael Luis, Bolívar Raya, Juan Pedro
Tipo de recurso: artículo
Fecha de publicación:2021
País:España
Institución:Universidad de Huelva (UHU)
Repositorio:Arias Montano. Repositorio Institucional de la Universidad de Huelva
Idioma:inglés
OAI Identifier:oai:ariasmontano.uhu.es:10272/20147
Acceso en línea:http://hdl.handle.net/10272/20147
Access Level:acceso abierto
Palabra clave:Gamma–Alpha-particle spectrometry
Well-type Ge detectors
Efficiency calibration
Self-absorption correction
Anti-Compton system
NORM
22 Física
id ES_3d26f7ed67fd99c2a7bd7ccc2c40db18
oai_identifier_str oai:ariasmontano.uhu.es:10272/20147
network_acronym_str ES
network_name_str España
repository_id_str
spelling A general methodology to determine natural radionuclides by well-type HPGe detectorsBarba Lobo, AlejandroGutiérrez de San Miguel Herrera, EnriqueLozano Bermejo, Rafael LuisBolívar Raya, Juan PedroGamma–Alpha-particle spectrometryWell-type Ge detectorsEfficiency calibrationSelf-absorption correctionAnti-Compton systemNORM22 FísicaThis work aims to determine natural radionuclides (210Pb, 228,226Ra, 234,228Th and 40K) in NORM samples by well-type HPGe detectors because they are of vital importance in studies on environmental samples. For this, a novel methodology has been developed, based on obtaining a general function for the full-energy peak efficiency (FEPE) versus the sample apparent density and composition, keeping the sample height constant. To obtain the general FEPE function, a calibration in efficiency has been accomplished using certified standards provided by IAEA (RGU-1 and RGTh-1), and KCl. Besides, different self-absorption correction functions were compared for cylindrical geometry, where chemical compositions need to be known. Then, a study on using an anti-Compton system was done, getting a lower detection limit and allowing to propose gamma spectrometry as an alternative technique to alpha-particle spectrometry. Finally, the followed methodology to calculate the FEPE was subjected to internal and external validations, checking its validity range.Elsevier20212021-01-0120212021-01-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10272/20147reponame:Arias Montano. Repositorio Institucional de la Universidad de Huelvainstname:Universidad de Huelva (UHU)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Atribución-NoComercial-SinDerivadas 3.0 Españahttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:ariasmontano.uhu.es:10272/201472026-06-02T14:58:11Z
dc.title.none.fl_str_mv A general methodology to determine natural radionuclides by well-type HPGe detectors
title A general methodology to determine natural radionuclides by well-type HPGe detectors
spellingShingle A general methodology to determine natural radionuclides by well-type HPGe detectors
Barba Lobo, Alejandro
Gamma–Alpha-particle spectrometry
Well-type Ge detectors
Efficiency calibration
Self-absorption correction
Anti-Compton system
NORM
22 Física
title_short A general methodology to determine natural radionuclides by well-type HPGe detectors
title_full A general methodology to determine natural radionuclides by well-type HPGe detectors
title_fullStr A general methodology to determine natural radionuclides by well-type HPGe detectors
title_full_unstemmed A general methodology to determine natural radionuclides by well-type HPGe detectors
title_sort A general methodology to determine natural radionuclides by well-type HPGe detectors
dc.creator.none.fl_str_mv Barba Lobo, Alejandro
Gutiérrez de San Miguel Herrera, Enrique
Lozano Bermejo, Rafael Luis
Bolívar Raya, Juan Pedro
author Barba Lobo, Alejandro
author_facet Barba Lobo, Alejandro
Gutiérrez de San Miguel Herrera, Enrique
Lozano Bermejo, Rafael Luis
Bolívar Raya, Juan Pedro
author_role author
author2 Gutiérrez de San Miguel Herrera, Enrique
Lozano Bermejo, Rafael Luis
Bolívar Raya, Juan Pedro
author2_role author
author
author
dc.contributor.none.fl_str_mv
dc.subject.none.fl_str_mv Gamma–Alpha-particle spectrometry
Well-type Ge detectors
Efficiency calibration
Self-absorption correction
Anti-Compton system
NORM
22 Física
topic Gamma–Alpha-particle spectrometry
Well-type Ge detectors
Efficiency calibration
Self-absorption correction
Anti-Compton system
NORM
22 Física
description This work aims to determine natural radionuclides (210Pb, 228,226Ra, 234,228Th and 40K) in NORM samples by well-type HPGe detectors because they are of vital importance in studies on environmental samples. For this, a novel methodology has been developed, based on obtaining a general function for the full-energy peak efficiency (FEPE) versus the sample apparent density and composition, keeping the sample height constant. To obtain the general FEPE function, a calibration in efficiency has been accomplished using certified standards provided by IAEA (RGU-1 and RGTh-1), and KCl. Besides, different self-absorption correction functions were compared for cylindrical geometry, where chemical compositions need to be known. Then, a study on using an anti-Compton system was done, getting a lower detection limit and allowing to propose gamma spectrometry as an alternative technique to alpha-particle spectrometry. Finally, the followed methodology to calculate the FEPE was subjected to internal and external validations, checking its validity range.
publishDate 2021
dc.date.none.fl_str_mv 2021
2021-01-01
2021
2021-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10272/20147
url http://hdl.handle.net/10272/20147
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Arias Montano. Repositorio Institucional de la Universidad de Huelva
instname:Universidad de Huelva (UHU)
instname_str Universidad de Huelva (UHU)
reponame_str Arias Montano. Repositorio Institucional de la Universidad de Huelva
collection Arias Montano. Repositorio Institucional de la Universidad de Huelva
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869406421663088640
score 15,811543

Similares en LA Referencia