Optical properties and radiation response of Li ion-doped CsI scintillator crystal

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dc.contributor.authorPEREIRA, MARIA da C.C.pt_BR
dc.contributor.authorMADI FILHO, TUFICpt_BR
dc.contributor.authorBERRETTA, JOSE R.pt_BR
dc.contributor.authorTOMAZ, LUCAS F.pt_BR
dc.contributor.authorMADI, MIRIAM N.pt_BR
dc.contributor.editorJAKSIC, ALEKSANDARpt_BR
dc.contributor.editorKARAMARKOVIC, JUGOSLAVpt_BR
dc.coverageInternacionalpt_BR
dc.creator.eventoINTERNATIONAL CONFERENCE ON RADIATION APPLICATIONSpt_BR
dc.date.accessioned2020-04-02T17:10:50Z
dc.date.available2020-04-02T17:10:50Z
dc.date.eventoSeptember 16-19, 2019pt_BR
dc.description.abstractScintillators are materials that convert the energy of ionizing radiation into a flash of light. Due to the existence of different types of scintillators themselves, they were classified into three groups according to their physicochemical characteristics, namely, inorganic, organic and gaseous scintillators. Among the inorganic crystals, the most used as scintillator are constituted of alkali metals, in particular alkaline iodides. Scintillation materials are used in many applications, such as medical imaging, security, physics, biology, non-destructive inspection and medicine. In this work, lithium doped CsI scintillator crystals were grown using the vertical Bridgman technique. The concentration of the lithium doping element (Li) studied was 10-4 M to 10-1 M. Analyses were carried out to evaluate the scintillators developed concerning to luminescence emission and optical transmittance. The luminescence emission spectra of these crystals were measured with a monochromator for gamma radiation from 137Cs source excitation. The optical transmittance measurements were made in the CsI;Li crystal, in a spectral region of 200 nm to 1100 nm. Determination of the dopant distribution along the crystalline axis, allowing to identify the region with Li concentration uniformity, which is the region of the crystalline volume indicated for use as radiation detector. The crystals were excited with neutron radiation from AmBe source, with energy range of 1 MeV to 12 MeV. As with neutron sources also generate gamma radiation, which can interfere with the measurement, it is necessary that detector be able to discriminate the presence of such radiation. Accordingly, experiments were performed using gamma radiation in the energy range 59 keV to 1333 keV in order to verify the ability of the detector to discriminate the presence of different types of radiation.pt_BR
dc.event.siglaRAPpt_BR
dc.format.extent15-15pt_BR
dc.identifier.citationPEREIRA, MARIA da C.C.; MADI FILHO, TUFIC; BERRETTA, JOSE R.; TOMAZ, LUCAS F.; MADI, MIRIAM N. Optical properties and radiation response of Li ion-doped CsI scintillator crystal. In: JAKSIC, ALEKSANDAR (ed.); KARAMARKOVIC, JUGOSLAV (ed.). In: INTERNATIONAL CONFERENCE ON RADIATION APPLICATIONS, September 16-19, 2019, Belgrade, Serbia. <b>Abstract...</b> Niš, Serbia: Sievert Association, 2019. p. 15-15. Disponível em: http://repositorio.ipen.br/handle/123456789/31056.
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/31056
dc.localNiš, Serbiapt_BR
dc.local.eventoBelgrade, Serbiapt_BR
dc.publisherSievert Associationpt_BR
dc.rightsopenAccesspt_BR
dc.titleOptical properties and radiation response of Li ion-doped CsI scintillator crystalpt_BR
dc.typeResumo de eventos científicospt_BR
dspace.entity.typePublication
ipen.autorLUCAS FAUSTINO TOMAZ
ipen.autorMIRIAM NIERI MADI
ipen.autorJOSE ROBERTO BERRETTA
ipen.autorTUFIC MADI FILHO
ipen.autorMARIA DA CONCEICAO COSTA PEREIRA
ipen.codigoautor14233
ipen.codigoautor14014
ipen.codigoautor710
ipen.codigoautor1231
ipen.codigoautor193
ipen.contributor.ipenauthorLUCAS FAUSTINO TOMAZ
ipen.contributor.ipenauthorMIRIAM NIERI MADI
ipen.contributor.ipenauthorJOSE ROBERTO BERRETTA
ipen.contributor.ipenauthorTUFIC MADI FILHO
ipen.contributor.ipenauthorMARIA DA CONCEICAO COSTA PEREIRA
ipen.date.recebimento20-04
ipen.event.datapadronizada2019pt_BR
ipen.identifier.ipendoc26846pt_BR
ipen.notas.internasAbstractpt_BR
ipen.type.genreResumo
relation.isAuthorOfPublication9a284afb-a21d-466b-95f5-f54ad91876af
relation.isAuthorOfPublication4d30b031-ff1d-49e3-9231-b4f8d91e9814
relation.isAuthorOfPublicatione05a9eb7-8471-4f24-9991-018ed148a2e2
relation.isAuthorOfPublicationc6d485fe-9927-427a-93a0-0104d2bf801e
relation.isAuthorOfPublication9dc6d02e-963a-42fd-96d8-d9d18a3ec6a8
relation.isAuthorOfPublication.latestForDiscovery9dc6d02e-963a-42fd-96d8-d9d18a3ec6a8
sigepi.autor.atividadeMADI, MIRIAM N.:14014:-1:Npt_BR
sigepi.autor.atividadeTOMAZ, LUCAS F.:14233:240:Npt_BR
sigepi.autor.atividadeBERRETTA, JOSE R.:710:240:Npt_BR
sigepi.autor.atividadeMADI FILHO, TUFIC:1231:240:Npt_BR
sigepi.autor.atividadePEREIRA, MARIA da C.C.:193:240:Spt_BR
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