Dose rate and energy dependency of an electronic personal dosemeter
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | https://doi.org/10.25758/set.474 |
Resumo: | Introduction – The measurement of occupational exposure to radiation doses can be completed with an electronic personal dosemeter that allows a direct reading and alarm function of the received radiation dose. Due to the energy and dose rate dependence already reported for this type of dosemeter, it is intended, with this work, to determine the response linearity of an Electronic Personal Dosemeter and to study its response behavior to the dose rate and radiation energy. Methodology – The electronic personal dosemeter Vertec Bleeper Sv energy dependency was evaluated by its irradiation with 500 μSv from the radionuclides Cobalt – 60 (60C) and Cesium – 137 (137Cs) as well as by the radiation qualities of the Narrow (N) series: N-30, N-40, N-60, N-80, N-100 e N-120. To investigate the dose rate dependency, the intensities of electric current of 1 mA, 5 mA, 10 mA, 15 mA, and 20 mA were applied to the X-ray tube. Results – There is no relationship between the response of the detector and the radiation energy. For energies below 33 keV, there is an underestimation of over 50% of the radiation dose measured but the detector presents a linear response for energies under 100 µSv. A dependency on the dose rate is perceived since as the dose rate increases, the response of the individual monitor decreases. There is a smaller decrease in the radiation qualities of N-30 (1.1%), N-40 (4.1%), and N-120 (20.0%). Conclusion – It is concluded that there is a strong dependence of radiation energy and dose rate on the response of an electronic personal dosemeter. |
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Dose rate and energy dependency of an electronic personal dosemeterEstudo da resposta de um dosímetro eletrónico individualDébito de doseEquivalente de dose individualDosímetro eletrónico pessoalEnergia de radiaçãoDose rateElectronic personal dosemeterPersonal dose equivalentRadiation energyIntroduction – The measurement of occupational exposure to radiation doses can be completed with an electronic personal dosemeter that allows a direct reading and alarm function of the received radiation dose. Due to the energy and dose rate dependence already reported for this type of dosemeter, it is intended, with this work, to determine the response linearity of an Electronic Personal Dosemeter and to study its response behavior to the dose rate and radiation energy. Methodology – The electronic personal dosemeter Vertec Bleeper Sv energy dependency was evaluated by its irradiation with 500 μSv from the radionuclides Cobalt – 60 (60C) and Cesium – 137 (137Cs) as well as by the radiation qualities of the Narrow (N) series: N-30, N-40, N-60, N-80, N-100 e N-120. To investigate the dose rate dependency, the intensities of electric current of 1 mA, 5 mA, 10 mA, 15 mA, and 20 mA were applied to the X-ray tube. Results – There is no relationship between the response of the detector and the radiation energy. For energies below 33 keV, there is an underestimation of over 50% of the radiation dose measured but the detector presents a linear response for energies under 100 µSv. A dependency on the dose rate is perceived since as the dose rate increases, the response of the individual monitor decreases. There is a smaller decrease in the radiation qualities of N-30 (1.1%), N-40 (4.1%), and N-120 (20.0%). Conclusion – It is concluded that there is a strong dependence of radiation energy and dose rate on the response of an electronic personal dosemeter.Introdução – A monitorização da exposição ocupacional a doses de radiação ionizante pode ser complementada por dosímetros eletrónicos individuais que permitem uma leitura direta da dose de radiação recebida. Dada a dependência energética e de débito de dose já reportada para estes dosímetros, este trabalho pretende determinar a linearidade da resposta de um dosímetro eletrónico individual e estudar o comportamento da sua resposta em função da energia de radiação e do débito de dose. Metodologia – Para estudar a dependência da energia da radiação do dosímetro eletrónico pessoal Vertec Bleeper Sv procedeu-se à sua irradiação com um equivalente de dose individual, Hp(10), de 500 μSv de radiação gama do Cobalto – 60 (60C) e Césio – 137 (137Cs) e das qualidades de radiação X da série Narrow (N): N-30, N-40, N-60, N-80, N-100 e N-120. Para investigar a dependência da resposta em função do débito de dose aplicaram-se à ampola de raios X as intensidades de corrente elétrica de 1 mA, 5 mA, 10 mA, 15 mA e 20 mA. Resultados – Não existe uma relação entre a resposta do detetor e a energia de radiação a que este é exposto. Ocorre uma subestimação superior a 50% na grandeza medida para energias inferiores a 33 keV, mas ostenta uma medida relativamente linear da grandeza Hp(10) para doses inferiores a 100 µSv. Também se constata que, à medida que o débito de dose aumenta, existe uma diminuição na resposta do dosímetro. O menor decréscimo na resposta deste dosímetro eletrónico individual dá-se para as qualidades de radiação N-30 (1,1%), N-40 (4,1%) e N-120 (20,0%). Conclusão – Verifica-se que a resposta do dosímetro individual Vertec Bleeper Sv depende fortemente da energia da radiação e do débito de dose.Escola Superior de Tecnologia da Saúde de Lisboa (Instituto Politécnico de Lisboa)2012-05-15info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://doi.org/10.25758/set.474oai:journals.ipl.pt:article/693Saúde e Tecnologia; No. 07 (2012): Maio 2012; 33-38Saúde & Tecnologia; N.º 07 (2012): Maio 2012; 33-381646-9704reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAPporhttps://journals.ipl.pt/stecnologia/article/view/693https://doi.org/10.25758/set.474https://journals.ipl.pt/stecnologia/article/view/693/592Direitos de Autor (c) 2022 Saúde & Tecnologiainfo:eu-repo/semantics/openAccessDuarte, Diana D.Cardoso, JoãoSantos, LuísOliveira, CarlosVieira, Lina2022-12-20T10:59:20Zoai:journals.ipl.pt:article/693Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T16:21:29.871226Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Dose rate and energy dependency of an electronic personal dosemeter Estudo da resposta de um dosímetro eletrónico individual |
title |
Dose rate and energy dependency of an electronic personal dosemeter |
spellingShingle |
Dose rate and energy dependency of an electronic personal dosemeter Duarte, Diana D. Débito de dose Equivalente de dose individual Dosímetro eletrónico pessoal Energia de radiação Dose rate Electronic personal dosemeter Personal dose equivalent Radiation energy |
title_short |
Dose rate and energy dependency of an electronic personal dosemeter |
title_full |
Dose rate and energy dependency of an electronic personal dosemeter |
title_fullStr |
Dose rate and energy dependency of an electronic personal dosemeter |
title_full_unstemmed |
Dose rate and energy dependency of an electronic personal dosemeter |
title_sort |
Dose rate and energy dependency of an electronic personal dosemeter |
author |
Duarte, Diana D. |
author_facet |
Duarte, Diana D. Cardoso, João Santos, Luís Oliveira, Carlos Vieira, Lina |
author_role |
author |
author2 |
Cardoso, João Santos, Luís Oliveira, Carlos Vieira, Lina |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Duarte, Diana D. Cardoso, João Santos, Luís Oliveira, Carlos Vieira, Lina |
dc.subject.por.fl_str_mv |
Débito de dose Equivalente de dose individual Dosímetro eletrónico pessoal Energia de radiação Dose rate Electronic personal dosemeter Personal dose equivalent Radiation energy |
topic |
Débito de dose Equivalente de dose individual Dosímetro eletrónico pessoal Energia de radiação Dose rate Electronic personal dosemeter Personal dose equivalent Radiation energy |
description |
Introduction – The measurement of occupational exposure to radiation doses can be completed with an electronic personal dosemeter that allows a direct reading and alarm function of the received radiation dose. Due to the energy and dose rate dependence already reported for this type of dosemeter, it is intended, with this work, to determine the response linearity of an Electronic Personal Dosemeter and to study its response behavior to the dose rate and radiation energy. Methodology – The electronic personal dosemeter Vertec Bleeper Sv energy dependency was evaluated by its irradiation with 500 μSv from the radionuclides Cobalt – 60 (60C) and Cesium – 137 (137Cs) as well as by the radiation qualities of the Narrow (N) series: N-30, N-40, N-60, N-80, N-100 e N-120. To investigate the dose rate dependency, the intensities of electric current of 1 mA, 5 mA, 10 mA, 15 mA, and 20 mA were applied to the X-ray tube. Results – There is no relationship between the response of the detector and the radiation energy. For energies below 33 keV, there is an underestimation of over 50% of the radiation dose measured but the detector presents a linear response for energies under 100 µSv. A dependency on the dose rate is perceived since as the dose rate increases, the response of the individual monitor decreases. There is a smaller decrease in the radiation qualities of N-30 (1.1%), N-40 (4.1%), and N-120 (20.0%). Conclusion – It is concluded that there is a strong dependence of radiation energy and dose rate on the response of an electronic personal dosemeter. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-05-15 |
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 |
https://doi.org/10.25758/set.474 oai:journals.ipl.pt:article/693 |
url |
https://doi.org/10.25758/set.474 |
identifier_str_mv |
oai:journals.ipl.pt:article/693 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://journals.ipl.pt/stecnologia/article/view/693 https://doi.org/10.25758/set.474 https://journals.ipl.pt/stecnologia/article/view/693/592 |
dc.rights.driver.fl_str_mv |
Direitos de Autor (c) 2022 Saúde & Tecnologia info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Direitos de Autor (c) 2022 Saúde & Tecnologia |
eu_rights_str_mv |
openAccess |
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application/pdf |
dc.publisher.none.fl_str_mv |
Escola Superior de Tecnologia da Saúde de Lisboa (Instituto Politécnico de Lisboa) |
publisher.none.fl_str_mv |
Escola Superior de Tecnologia da Saúde de Lisboa (Instituto Politécnico de Lisboa) |
dc.source.none.fl_str_mv |
Saúde e Tecnologia; No. 07 (2012): Maio 2012; 33-38 Saúde & Tecnologia; N.º 07 (2012): Maio 2012; 33-38 1646-9704 reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799130661937741824 |