Influence of thermal treatment on the Raman, infrared and TL responses of natural topaz

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dc.contributor.authorSOUZA, D.N.pt_BR
dc.contributor.authorLIMA, J.F.pt_BR
dc.contributor.authorVALERIO, M.E.G.pt_BR
dc.contributor.authorFANTINI, C.pt_BR
dc.contributor.authorPIMENTA, M.A.pt_BR
dc.contributor.authorMOREIRA, R.L.pt_BR
dc.contributor.authorCALDAS, L.V.E.pt_BR
dc.coverageInternacionalpt_BR
dc.creator.eventoREGIONAL CONGRESS ON RADIATION PROTECTION AND SAFETY, 5th, REGIONAL IRPA CONGRESSpt_BR
dc.date.accessioned2014-11-17T18:12:30Zpt_BR
dc.date.accessioned2014-11-18T18:11:20Zpt_BR
dc.date.accessioned2015-04-01T21:30:58Z
dc.date.available2014-11-17T18:12:30Zpt_BR
dc.date.available2014-11-18T18:11:20Zpt_BR
dc.date.available2015-04-01T21:30:58Z
dc.date.eventoApr. 29 - May 4, 2001pt_BR
dc.description.abstractAnalyses of Thermoluminescence (TL) and Thermally Stimulated Exoelectron Emission (TSEE) have proved that the natural Brazilian topaz is a promising material for dosimetry of ionizing radiation. Topaz is an aluminum fluorosilicate with a general composition of Al2(SiO4)(F,OH)2 whose main defect is the presence of to the OH- groups substituting for the F- ion. Analyses of topaz samples from Santo Antonio do Jacinto, MG, Brazil, showed that their TL responses are strongly affected by the temperature of pre-irradiation thermal treatment. This behavior was correlated to the changes observed in the Infrared and Raman spectra and a model could be proposed for the charge trapping and recombination process in colorless topaz.
dc.identifier.citationSOUZA, D.N.; LIMA, J.F.; VALERIO, M.E.G.; FANTINI, C.; PIMENTA, M.A.; MOREIRA, R.L.; CALDAS, L.V.E. Influence of thermal treatment on the Raman, infrared and TL responses of natural topaz. In: REGIONAL CONGRESS ON RADIATION PROTECTION AND SAFETY, 5th, REGIONAL IRPA CONGRESS, Apr. 29 - May 4, 2001, Recife, PE. <b>Proceedings...</b> Disponível em: http://repositorio.ipen.br/handle/123456789/16324.
dc.identifier.orcidhttps://orcid.org/0000-0002-7362-2455
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/16324pt_BR
dc.local.eventoRecife, PEpt_BR
dc.publisherRecife: SBPR, 2001pt_BR
dc.rightsopenAccess
dc.subjectmineralspt_BR
dc.subjectbrazilpt_BR
dc.subjectheat treatmentspt_BR
dc.subjectthermoluminescencept_BR
dc.subjectstimulated emissionpt_BR
dc.subjectexoelectronspt_BR
dc.subjectraman spectrapt_BR
dc.subjectinfrared spectrapt_BR
dc.subjectcharge carrierspt_BR
dc.subjectrecombinationpt_BR
dc.subjectdosimetrypt_BR
dc.titleInfluence of thermal treatment on the Raman, infrared and TL responses of natural topazpt_BR
dc.typeTexto completo de eventopt_BR
dspace.entity.typePublication
ipen.autorLINDA V. E. CALDAS
ipen.codigoautor1495
ipen.contributor.ipenauthorLINDA V. E. CALDAS
ipen.date.recebimento03-02pt_BR
ipen.event.datapadronizada2001pt_BR
ipen.identifier.ipendoc08913pt_BR
ipen.notas.internasProceedingspt_BR
ipen.type.genreArtigo
relation.isAuthorOfPublication7f46d4f4-dfd6-4485-a767-10df5b4f4f13
relation.isAuthorOfPublication.latestForDiscovery7f46d4f4-dfd6-4485-a767-10df5b4f4f13
sigepi.autor.atividadeCALDAS, L.V.E.:1495:28:Npt_BR

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