Radiochemical method for characterization of the filter cartridges from the IEA-R1 reactor

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dc.contributor.authorGERALDO, BIANCApt_BR
dc.contributor.authorVICENTE, ROBERTOpt_BR
dc.contributor.authorFERREIRA, ROBSON J.pt_BR
dc.contributor.authorMADUAR, MARCELO F.pt_BR
dc.contributor.authorGOES, MARCOS M.pt_BR
dc.contributor.authorMARUMO, JULIO T.pt_BR
dc.coverageInternacionalpt_BR
dc.creator.eventoANNUAL WASTE MANAGEMENT CONFERENCEpt_BR
dc.date.accessioned2020-06-16T18:02:14Z
dc.date.available2020-06-16T18:02:14Z
dc.date.eventoMarch 6-10, 2016pt_BR
dc.description.abstractThe filter cartridges used in water purification system of the IEA-R1 research reactor become radioactive waste after the end of their useful life. The characterization of this waste is one step in their management, which aims at identifying and quantifying the radionuclides present, including those known as "difficult to measure" (DTM) radionuclides. Wastes from nuclear reactors contain fission and activation products and transuranic elements, only few of them emitting gamma radiation measurable by simple gamma spectrometry methods. In routine waste management activities, the concentrations of the DTM can only be estimated by indirect methods such as scaling factors. The method of the scaling factors uses empirically determined proportions between the concentrations of DTM radionuclides and that of easily measurable gamma emitters called key nuclides (KN), to calculate DTM concentrations. Determining the scaling factors for the filter cartridges is a hard task when the number of samples is large, not only because the preparation of samples is difficult but also because the number of radionuclides to analyze is large. If it can be demonstrated that DTM and KN are both distributed evenly in the filters, less samples from each filter are necessary, reducing lab work. The aim of this paper is to present the results of the assessment of homogeneity along the filter cartridges by gamma spectrometry of chemically reduced samples. Five thin slices of five filters were burnt and the ashes quantitatively dissolved and the activity concentration of the solutions determined by gamma spectrometry.pt_BR
dc.event.siglaWMpt_BR
dc.format.extent1-5pt_BR
dc.identifier.citationGERALDO, BIANCA; VICENTE, ROBERTO; FERREIRA, ROBSON J.; MADUAR, MARCELO F.; GOES, MARCOS M.; MARUMO, JULIO T. Radiochemical method for characterization of the filter cartridges from the IEA-R1 reactor. In: ANNUAL WASTE MANAGEMENT CONFERENCE, March 6-10, 2016, Phoenix, Arizona, USA. <b>Proceedings...</b> Tempe, Arizona, USA: Waste Management Symposia, 2016. p. 1-5. Disponível em: http://repositorio.ipen.br/handle/123456789/31302.
dc.identifier.orcid0000-0003-3010-9691pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-4448-003X
dc.identifier.orcidhttps://orcid.org/0000-0003-3010-9691
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/31302
dc.localTempe, Arizona, USApt_BR
dc.local.eventoPhoenix, Arizona, USApt_BR
dc.publisherWaste Management Symposiapt_BR
dc.rightsclosedAccesspt_BR
dc.subjectconcentration ratio
dc.subjectfilters
dc.subjectpurification
dc.subjectradioactive waste management
dc.subjectradiochemistry
dc.subjectradioisotopes
dc.subjectresearch reactors
dc.subjectservice life
dc.subjectwater treatment
dc.titleRadiochemical method for characterization of the filter cartridges from the IEA-R1 reactorpt_BR
dc.typeTexto completo de eventopt_BR
dspace.entity.typePublication
ipen.autorMARCELO FRANCIS MADUAR
ipen.autorJULIO TAKEHIRO MARUMO
ipen.autorMARCOS MACIEL DE GOES
ipen.autorROBSON DE JESUS FERREIRA
ipen.autorROBERTO VICENTE
ipen.autorBIANCA GERALDO
ipen.codigoautor766
ipen.codigoautor826
ipen.codigoautor696
ipen.codigoautor784
ipen.codigoautor1404
ipen.codigoautor9046
ipen.contributor.ipenauthorMARCELO FRANCIS MADUAR
ipen.contributor.ipenauthorJULIO TAKEHIRO MARUMO
ipen.contributor.ipenauthorMARCOS MACIEL DE GOES
ipen.contributor.ipenauthorROBSON DE JESUS FERREIRA
ipen.contributor.ipenauthorROBERTO VICENTE
ipen.contributor.ipenauthorBIANCA GERALDO
ipen.date.recebimento20-06
ipen.event.datapadronizada2016pt_BR
ipen.identifier.ipendoc27080pt_BR
ipen.notas.internasProceedingspt_BR
ipen.type.genreArtigo
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relation.isAuthorOfPublication4555167f-0f50-4308-be74-c5a0f15d5dda
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relation.isAuthorOfPublicationd4568851-a1b6-4698-a239-995a77c323bd
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relation.isAuthorOfPublication66a8b668-997f-4df0-b14a-61b1fc9d2885
relation.isAuthorOfPublication.latestForDiscovery66a8b668-997f-4df0-b14a-61b1fc9d2885
sigepi.autor.atividadeMARUMO, JULIO T.:826:450:Npt_BR
sigepi.autor.atividadeGOES, MARCOS M.:696:1120:Npt_BR
sigepi.autor.atividadeMADUAR, MARCELO F.:766:340:Npt_BR
sigepi.autor.atividadeFERREIRA, ROBSON J.:784:-1:Npt_BR
sigepi.autor.atividadeVICENTE, ROBERTO:1404:1120:Npt_BR
sigepi.autor.atividadeGERALDO, BIANCA:9046:1120:Spt_BR
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