Performance of an extrapolation chamber in computed tomography standard beams

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dc.contributor.authorCASTRO, MAYSA C.
dc.contributor.authorSILVA, NATALIA F.
dc.contributor.authorCALDAS, LINDA V.E.
dc.coverageInternacionalpt_BR
dc.creator.eventoINTERNATIONAL NUCLEAR ATLANTIC CONFERENCEpt_BR
dc.date.accessioned2018-01-12T13:00:29Z
dc.date.available2018-01-12T13:00:29Z
dc.date.eventoOctober 22-27, 2017pt_BR
dc.description.abstractAmong the medical uses of ionizing radiations, the computed tomography (CT) diagnostic exams are responsible for the highest dose values to the patients. The dosimetry procedure in CT scanner beams makes use of pencil ionization chambers with sensitive volume lengths of 10 cm. The aim of its calibration is to compare the values that are obtained with the instrument to be calibrated and a standard reference system. However, there is no primary standard system for this kind of radiation beam. Therefore, an extrapolation ionization chamber built at the Calibration Laboratory (LCI), was used to establish a CT primary standard. The objective of this work was to perform some characterization tests (short- and medium-term stabilities, saturation curve, polarity effect and ion collection efficiency) in the standard X-rays beams established for computed tomography at the LCI.pt_BR
dc.event.siglaINACpt_BR
dc.identifier.citationCASTRO, MAYSA C.; SILVA, NATALIA F.; CALDAS, LINDA V.E. Performance of an extrapolation chamber in computed tomography standard beams. In: INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE, October 22-27, 2017, Belo Horizonte, MG. <b>Proceedings...</b> Rio de Janeiro, RJ: Associação Brasileira de Energia Nuclear, 2017. Disponível em: http://repositorio.ipen.br/handle/123456789/28306.
dc.identifier.orcidhttps://orcid.org/0000-0002-7362-2455
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/28306
dc.localRio de Janeiro, RJpt_BR
dc.local.eventoBelo Horizonte, MGpt_BR
dc.publisherAssociação Brasileira de Energia Nuclearpt_BR
dc.rightsopenAccesspt_BR
dc.subjectcalibration
dc.subjectcomputerized tomography
dc.subjectextrapolation chambers
dc.subjectperformance
dc.subjectradiation doses
dc.subjectsaturation
dc.subjectstability
dc.subjectx radiation
dc.titlePerformance of an extrapolation chamber in computed tomography standard beamspt_BR
dc.typeTexto completo de eventopt_BR
dspace.entity.typePublication
ipen.autorLINDA V. E. CALDAS
ipen.autorNATALIA FIORINI DA SILVA
ipen.autorMAYSA COSTA DE CASTRO
ipen.codigoautor1495
ipen.codigoautor12139
ipen.codigoautor12105
ipen.contributor.ipenauthorLINDA V. E. CALDAS
ipen.contributor.ipenauthorNATALIA FIORINI DA SILVA
ipen.contributor.ipenauthorMAYSA COSTA DE CASTRO
ipen.date.recebimento18-01pt_BR
ipen.event.datapadronizada2017pt_BR
ipen.identifier.ipendoc24141pt_BR
ipen.notas.internasProceedingspt_BR
ipen.type.genreArtigo
relation.isAuthorOfPublication7f46d4f4-dfd6-4485-a767-10df5b4f4f13
relation.isAuthorOfPublicationc8a4b1ff-5955-47b9-a15a-ecbd12a4baa8
relation.isAuthorOfPublicationa7ec93af-7e13-4572-8409-2fcafeab7015
relation.isAuthorOfPublication.latestForDiscoverya7ec93af-7e13-4572-8409-2fcafeab7015
sigepi.autor.atividadeCASTRO, MAYSA C.:12105:330:Spt_BR
sigepi.autor.atividadeSILVA, NATALIA F.:12139:330:Npt_BR
sigepi.autor.atividadeCALDAS, LINDA V.E.:1495:330:Npt_BR
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