Evaluation of an extrapolation chamber for dosimetry in computed tomography beams using Monte Carlo code (MCNP5)

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dc.contributor.authorCASTRO, MAYSA C.pt_BR
dc.contributor.authorSILVA, NATALIA F.pt_BR
dc.contributor.authorSANTOS, LUCAS R.pt_BR
dc.contributor.authorCINTRA, FELIPE B.pt_BR
dc.contributor.authorCALDAS, LINDA V.E.pt_BR
dc.coverageInternacionalpt_BR
dc.date.accessioned2020-10-14T16:03:29Z
dc.date.available2020-10-14T16:03:29Z
dc.date.issued2020pt_BR
dc.description.abstractComputed tomography (CT) is responsible for the highest dose values to the patients during the exams. Therefore, the radiation doses in this procedure must be accurate. However, there is no primary standard system for this kind of radiation beam yet. A homemade extrapolation ionization chamber was preliminary evaluated for the establishment of a CT beam primary standard. The aim of this study was to determine the influence that the various components of the extrapolation chamber may present on the energy deposited in its sensitive volume. Different materials for its collecting electrode were also studied for this type of radiation beam. The evaluation of the homemade extrapolation chamber showed the highest influence of 25.9% for the collecting electrode, and the best material for the collecting electrode for CT radiation beams was graphite.pt_BR
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)pt_BR
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)pt_BR
dc.description.sponsorshipIDCNPq: 301335/2016-8pt_BR
dc.description.sponsorshipIDCAPES: 554/18pt_BR
dc.format.extent1-4pt_BR
dc.identifier.citationCASTRO, MAYSA C.; SILVA, NATALIA F.; SANTOS, LUCAS R.; CINTRA, FELIPE B.; CALDAS, LINDA V.E. Evaluation of an extrapolation chamber for dosimetry in computed tomography beams using Monte Carlo code (MCNP5). <b>Radiation Physics and Chemistry</b>, v. 167, p. 1-4, 2020. DOI: <a href="https://dx.doi.org/10.1016/j.radphyschem.2019.04.043">10.1016/j.radphyschem.2019.04.043</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/31435.
dc.identifier.doi10.1016/j.radphyschem.2019.04.043pt_BR
dc.identifier.issn0969-806Xpt_BR
dc.identifier.orcid0000-0002-7362-2455pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-7362-2455
dc.identifier.percentilfi66.43pt_BR
dc.identifier.percentilfiCiteScore72.00
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/31435
dc.identifier.vol167pt_BR
dc.relation.ispartofRadiation Physics and Chemistrypt_BR
dc.rightsopenAccesspt_BR
dc.sourceInternational Symposium on Radiation Physics, 14th, October 7-11, 2018, Córdoba, Argentinapt_BR
dc.subjectradiation doses
dc.subjectionization chambers
dc.subjectcomputerized tomography
dc.subjectdosimetry
dc.subjectmonte carlo method
dc.subjectextrapolation chambers
dc.subjectradiations
dc.subjectbeams
dc.titleEvaluation of an extrapolation chamber for dosimetry in computed tomography beams using Monte Carlo code (MCNP5)pt_BR
dc.typeArtigo de periódicopt_BR
dspace.entity.typePublication
ipen.autorFELIPE BELONSI DE CINTRA
ipen.autorLINDA V. E. CALDAS
ipen.autorNATALIA FIORINI DA SILVA
ipen.autorMAYSA COSTA DE CASTRO
ipen.codigoautor7952
ipen.codigoautor1495
ipen.codigoautor12139
ipen.codigoautor12105
ipen.contributor.ipenauthorFELIPE BELONSI DE CINTRA
ipen.contributor.ipenauthorLINDA V. E. CALDAS
ipen.contributor.ipenauthorNATALIA FIORINI DA SILVA
ipen.contributor.ipenauthorMAYSA COSTA DE CASTRO
ipen.date.recebimento20-10
ipen.identifier.fi2.858pt_BR
ipen.identifier.fiCiteScore3.8
ipen.identifier.ipendoc27209pt_BR
ipen.identifier.iwosWoSpt_BR
ipen.range.fi1.500 - 2.999
ipen.range.percentilfi50.00 - 74.99
ipen.type.genreArtigo
relation.isAuthorOfPublication837c107d-deaa-4c92-87a2-49bd8d170150
relation.isAuthorOfPublication7f46d4f4-dfd6-4485-a767-10df5b4f4f13
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relation.isAuthorOfPublication.latestForDiscoverya7ec93af-7e13-4572-8409-2fcafeab7015
sigepi.autor.atividadeCALDAS, LINDA V.E.:1495:330:Npt_BR
sigepi.autor.atividadeCINTRA, FELIPE B.:7952:-1:Npt_BR
sigepi.autor.atividadeSILVA, NATALIA F.:12139:330:Npt_BR
sigepi.autor.atividadeCASTRO, MAYSA C.:12105:330:Spt_BR
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