Anisotropy function of a new 192-Ir brachytherapy source

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dc.contributor.authorABREU, RODRIGO T.pt_BR
dc.contributor.authorANGELOCCI, LUCAS V.pt_BR
dc.contributor.authorNOGUEIRA, BEATRIZ R.pt_BR
dc.contributor.authorSANTOS, HAMONA N. dospt_BR
dc.contributor.authorZEITUNI, CARLOS A.pt_BR
dc.contributor.authorROSTELATO, MARIA E.C.M.pt_BR
dc.coverageInternacionalpt_BR
dc.creator.eventoINTERNATIONAL NUCLEAR ATLANTIC CONFERENCEpt_BR
dc.date.accessioned2019-11-27T13:42:25Z
dc.date.available2019-11-27T13:42:25Z
dc.date.eventoOctober 21-25, 2019pt_BR
dc.description.abstractBrachytherapy is a type of radiotherapy that uses radioactive sources (seeds, wires, among others) close to the tumor. Is important to provide a detailed description of seed dosimetry, so only the tumor will be irradiated avoiding unnecessary dose on adjacent organs and structures. To evaluate the dosimetric parameter of the anisotropy function for a new brachytherapy source, this work proposes the use of microcube TLD-100 dosimeters to find the dose rate using the AAPM Task Group 43 protocol (TG-43). The anisotropy function represents dose distribution around the source and has a major role for characterization of a new iridium source being implemented in Brazil. The value of D(r,θ) was measured using Solid Water phantoms, r value being the distance from the geometric center of the source to the position of the dosimeter on the phantom, and θ being the angle formed between the longitudinal axis of the source and the line connecting the geometric center to the TLD. Monte Carlo calculations were performed to evaluate the anisotropy function to validate the experimental measurements. For each distance value (r), an anisotropy function was plotted (1.0, 2.0, 3.0, 4.0, 5.0, and 10.0 cm). The results obtained with Monte Carlo calculations agreed ±2% with the experimental values for r greater than 3.0 cm, so these results show a good distribution of dose around the seed considering the high energy of 192-Ir (average of 380 KeV) and encapsulation thickness.pt_BR
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipIDCAPES: 001
dc.event.siglaINACpt_BR
dc.format.extent175-185pt_BR
dc.identifier.citationABREU, RODRIGO T.; ANGELOCCI, LUCAS V.; NOGUEIRA, BEATRIZ R.; SANTOS, HAMONA N. dos; ZEITUNI, CARLOS A.; ROSTELATO, MARIA E.C.M. Anisotropy function of a new 192-Ir brachytherapy source. In: INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE, October 21-25, 2019, Santos, SP. <b>Proceedings...</b> Rio de Janeiro: Associação Brasileira de Energia Nuclear, 2019. p. 175-185. Disponível em: http://repositorio.ipen.br/handle/123456789/30345.
dc.identifier.orcid0000-0003-2943-6097pt_BR
dc.identifier.orcid0000-0002-7303-6720pt_BR
dc.identifier.orcid0000-0003-4609-2281pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-2943-6097
dc.identifier.orcidhttps://orcid.org/0000-0002-7303-6720
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/30345
dc.localRio de Janeiropt_BR
dc.local.eventoSantos, SPpt_BR
dc.publisherAssociação Brasileira de Energia Nuclear
dc.rightsopenAccesspt_BR
dc.subjectanisotropy
dc.subjectbrachytherapy
dc.subjectdose rates
dc.subjectdosimetry
dc.subjectiridium 192
dc.subjectmonte carlo method
dc.subjectphantoms
dc.subjectradiation dose distributions
dc.subjectradiation source implants
dc.subjectsealed sources
dc.subjectthermoluminescent dosemeters
dc.titleAnisotropy function of a new 192-Ir brachytherapy sourcept_BR
dc.typeTexto completo de eventopt_BR
dspace.entity.typePublication
ipen.autorLUCAS VERDI ANGELOCCI
ipen.autorHAMONA NOVAES DOS SANTOS
ipen.autorMARIA ELISA CHUERY MARTINS ROSTELATO
ipen.autorCARLOS ALBERTO ZEITUNI
ipen.autorBEATRIZ RIBEIRO NOGUEIRA
ipen.autorRODRIGO TEIXEIRA DE ABREU
ipen.codigoautor12698
ipen.codigoautor14956
ipen.codigoautor7
ipen.codigoautor944
ipen.codigoautor7563
ipen.codigoautor14555
ipen.contributor.ipenauthorLUCAS VERDI ANGELOCCI
ipen.contributor.ipenauthorHAMONA NOVAES DOS SANTOS
ipen.contributor.ipenauthorMARIA ELISA CHUERY MARTINS ROSTELATO
ipen.contributor.ipenauthorCARLOS ALBERTO ZEITUNI
ipen.contributor.ipenauthorBEATRIZ RIBEIRO NOGUEIRA
ipen.contributor.ipenauthorRODRIGO TEIXEIRA DE ABREU
ipen.date.recebimento19-11
ipen.event.datapadronizada2019pt_BR
ipen.identifier.ipendoc26133pt_BR
ipen.notas.internasProceedingspt_BR
ipen.type.genreArtigo
relation.isAuthorOfPublication34f99ea4-8545-4c90-80e2-e9fda638cd8c
relation.isAuthorOfPublication6114f74e-a03d-4f47-8543-7cebb3c327d2
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relation.isAuthorOfPublication02421b96-adef-4759-b25e-67d4759aa676
relation.isAuthorOfPublicationbf595406-78bc-405b-afb9-a54dc01ee206
relation.isAuthorOfPublication16ef3a38-1c2d-4439-9856-37013c3bf36c
relation.isAuthorOfPublication.latestForDiscovery16ef3a38-1c2d-4439-9856-37013c3bf36c
sigepi.autor.atividadeROSTELATO, MARIA E.C.M.:7:230:Npt_BR
sigepi.autor.atividadeZEITUNI, CARLOS A.:944:230:Npt_BR
sigepi.autor.atividadeSANTOS, HAMONA N. dos:14956:230:Npt_BR
sigepi.autor.atividadeNOGUEIRA, BEATRIZ R.:7563:230:Npt_BR
sigepi.autor.atividadeANGELOCCI, LUCAS V.:12698:230:Npt_BR
sigepi.autor.atividadeABREU, RODRIGO T.:14555:230:Spt_BR
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