Analysis of the in vivo monitoring program at IPEN in the last 14 years

Detalhes bibliográficos
Autor(a) principal: TODO, ALBERTO S.
Data de Publicação: 2020
Outros Autores: CARDOSO, JOAQUIM C.S., RODRIGUES JUNIOR, ORLANDO, INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE
Tipo de documento: Artigo de conferência
Título da fonte: Repositório Institucional do IPEN
Texto Completo: http://repositorio.ipen.br/handle/123456789/30918
Resumo: This paper presents the results of the in vivo monitoring analysis for Occupationally Exposed Individuals that handle unsealed sources at Nuclear and Energy Research Institute (IPEN). The facilities are: the Radiopharmacy Center, the Cyclotron, the IEA-R1 Reactor and Research Laboratories. The in vivo monitoring program is carried out in a whole-body counter for radionuclides emitting gamma rays with energy above 100 keV. This system is equipped with 8x4 and 3x3 inch NaI(Tl) detector, for whole body and thyroid measurements, respectively. The objective of this work is to analyze the results of the internal monitoring program according to the dose received by the Occupationally Exposed Individuals from 2005 to 2018. During this period about 6,000 measurements were accomplished. The radionuclides that presented measured values above the detection limit of the system were: 131I, 99Mo, 99mTc, 153Sm, 177Lu, 111In, 192Ir, 125I, 123I, 181Hf, 203Hg, 67Ga, 18F, 51Cr, 201Tl. These measurements have amounted less than 6.9% of the total whole-body monitoring???s performed in this period. Among these radionuclides, 131I, 99mTc, 125I and 18F have contributed with 69% of all measurements above the limit of detection, but most dose results were below the recording level under installations normal operating conditions. Regarding to the radionuclides that have presented doses above the recording level we can mention the 131I, 67Ga, 111In that occurred in small unexpected situations. The results shown by this analysis give a good support to the internal individual monitoring program implemented by the radioprotection service in these facilities.
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spelling 2020-03-12T17:34:31Z2020-03-12T17:34:31ZOctober 21-25, 2019http://repositorio.ipen.br/handle/123456789/30918This paper presents the results of the in vivo monitoring analysis for Occupationally Exposed Individuals that handle unsealed sources at Nuclear and Energy Research Institute (IPEN). The facilities are: the Radiopharmacy Center, the Cyclotron, the IEA-R1 Reactor and Research Laboratories. The in vivo monitoring program is carried out in a whole-body counter for radionuclides emitting gamma rays with energy above 100 keV. This system is equipped with 8x4 and 3x3 inch NaI(Tl) detector, for whole body and thyroid measurements, respectively. The objective of this work is to analyze the results of the internal monitoring program according to the dose received by the Occupationally Exposed Individuals from 2005 to 2018. During this period about 6,000 measurements were accomplished. The radionuclides that presented measured values above the detection limit of the system were: 131I, 99Mo, 99mTc, 153Sm, 177Lu, 111In, 192Ir, 125I, 123I, 181Hf, 203Hg, 67Ga, 18F, 51Cr, 201Tl. These measurements have amounted less than 6.9% of the total whole-body monitoring???s performed in this period. Among these radionuclides, 131I, 99mTc, 125I and 18F have contributed with 69% of all measurements above the limit of detection, but most dose results were below the recording level under installations normal operating conditions. Regarding to the radionuclides that have presented doses above the recording level we can mention the 131I, 67Ga, 111In that occurred in small unexpected situations. The results shown by this analysis give a good support to the internal individual monitoring program implemented by the radioprotection service in these facilities.Submitted by Celia Satomi Uehara (celia.u-topservice@ipen.br) on 2020-03-12T17:34:31Z No. of bitstreams: 1 26603.pdf: 419971 bytes, checksum: fbf0d18a82ea92eea075828675bbd70b (MD5)Made available in DSpace on 2020-03-12T17:34:31Z (GMT). No. of bitstreams: 1 26603.pdf: 419971 bytes, checksum: fbf0d18a82ea92eea075828675bbd70b (MD5)93-98Associa????o Brasileira de Energia Nucleareffective radiation dosesgamma radiationin vivointernal irradiationnai detectorsoccupational exposureradiation monitoringradiation protectionradioisotopesthyroidunsealed sourceswhole-body countersbrazilian cnenAnalysis of the in vivo monitoring program at IPEN in the last 14 yearsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectINACIRio de JaneiroSantos, SP12795797322600600600TODO, ALBERTO S.CARDOSO, JOAQUIM C.S.RODRIGUES JUNIOR, ORLANDOINTERNATIONAL NUCLEAR ATLANTIC CONFERENCEinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional do IPENinstname:Instituto de Pesquisas Energéticas e Nucleares (IPEN)instacron:IPEN266032019RODRIGUES JUNIOR, ORLANDOCARDOSO, JOAQUIM C.S.TODO, ALBERTO S.20-03Proceedings32257971279RODRIGUES JUNIOR, ORLANDO:322:330:NCARDOSO, JOAQUIM C.S.:5797:330:NTODO, ALBERTO S.:1279:330:SORIGINAL26603.pdf26603.pdfapplication/pdf419971http://repositorio.ipen.br/bitstream/123456789/30918/1/26603.pdffbf0d18a82ea92eea075828675bbd70bMD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81748http://repositorio.ipen.br/bitstream/123456789/30918/2/license.txt8a4605be74aa9ea9d79846c1fba20a33MD52123456789/309182020-07-16 23:54:38.402oai:repositorio.ipen.br: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Repositório InstitucionalPUBhttp://repositorio.ipen.br/oai/requestbibl@ipen.bropendoar:45102020-07-16T23:54:38Repositório Institucional do IPEN - Instituto de Pesquisas Energéticas e Nucleares (IPEN)false
dc.title.pt_BR.fl_str_mv Analysis of the in vivo monitoring program at IPEN in the last 14 years
title Analysis of the in vivo monitoring program at IPEN in the last 14 years
spellingShingle Analysis of the in vivo monitoring program at IPEN in the last 14 years
TODO, ALBERTO S.
effective radiation doses
gamma radiation
in vivo
internal irradiation
nai detectors
occupational exposure
radiation monitoring
radiation protection
radioisotopes
thyroid
unsealed sources
whole-body counters
brazilian cnen
title_short Analysis of the in vivo monitoring program at IPEN in the last 14 years
title_full Analysis of the in vivo monitoring program at IPEN in the last 14 years
title_fullStr Analysis of the in vivo monitoring program at IPEN in the last 14 years
title_full_unstemmed Analysis of the in vivo monitoring program at IPEN in the last 14 years
title_sort Analysis of the in vivo monitoring program at IPEN in the last 14 years
author TODO, ALBERTO S.
author_facet TODO, ALBERTO S.
CARDOSO, JOAQUIM C.S.
RODRIGUES JUNIOR, ORLANDO
INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE
author_role author
author2 CARDOSO, JOAQUIM C.S.
RODRIGUES JUNIOR, ORLANDO
INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE
author2_role author
author
author
dc.contributor.author.fl_str_mv TODO, ALBERTO S.
CARDOSO, JOAQUIM C.S.
RODRIGUES JUNIOR, ORLANDO
INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE
dc.subject.por.fl_str_mv effective radiation doses
gamma radiation
in vivo
internal irradiation
nai detectors
occupational exposure
radiation monitoring
radiation protection
radioisotopes
thyroid
unsealed sources
whole-body counters
brazilian cnen
topic effective radiation doses
gamma radiation
in vivo
internal irradiation
nai detectors
occupational exposure
radiation monitoring
radiation protection
radioisotopes
thyroid
unsealed sources
whole-body counters
brazilian cnen
description This paper presents the results of the in vivo monitoring analysis for Occupationally Exposed Individuals that handle unsealed sources at Nuclear and Energy Research Institute (IPEN). The facilities are: the Radiopharmacy Center, the Cyclotron, the IEA-R1 Reactor and Research Laboratories. The in vivo monitoring program is carried out in a whole-body counter for radionuclides emitting gamma rays with energy above 100 keV. This system is equipped with 8x4 and 3x3 inch NaI(Tl) detector, for whole body and thyroid measurements, respectively. The objective of this work is to analyze the results of the internal monitoring program according to the dose received by the Occupationally Exposed Individuals from 2005 to 2018. During this period about 6,000 measurements were accomplished. The radionuclides that presented measured values above the detection limit of the system were: 131I, 99Mo, 99mTc, 153Sm, 177Lu, 111In, 192Ir, 125I, 123I, 181Hf, 203Hg, 67Ga, 18F, 51Cr, 201Tl. These measurements have amounted less than 6.9% of the total whole-body monitoring???s performed in this period. Among these radionuclides, 131I, 99mTc, 125I and 18F have contributed with 69% of all measurements above the limit of detection, but most dose results were below the recording level under installations normal operating conditions. Regarding to the radionuclides that have presented doses above the recording level we can mention the 131I, 67Ga, 111In that occurred in small unexpected situations. The results shown by this analysis give a good support to the internal individual monitoring program implemented by the radioprotection service in these facilities.
publishDate 2020
dc.date.evento.pt_BR.fl_str_mv October 21-25, 2019
dc.date.accessioned.fl_str_mv 2020-03-12T17:34:31Z
dc.date.available.fl_str_mv 2020-03-12T17:34:31Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/conferenceObject
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dc.identifier.uri.fl_str_mv http://repositorio.ipen.br/handle/123456789/30918
url http://repositorio.ipen.br/handle/123456789/30918
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dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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dc.format.none.fl_str_mv 93-98
dc.coverage.pt_BR.fl_str_mv I
dc.publisher.none.fl_str_mv Associa????o Brasileira de Energia Nuclear
publisher.none.fl_str_mv Associa????o Brasileira de Energia Nuclear
dc.source.none.fl_str_mv reponame:Repositório Institucional do IPEN
instname:Instituto de Pesquisas Energéticas e Nucleares (IPEN)
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instname_str Instituto de Pesquisas Energéticas e Nucleares (IPEN)
instacron_str IPEN
institution IPEN
reponame_str Repositório Institucional do IPEN
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