Thermo luminescence and optically stimulated luminescence characteristics of Al2O3 doped with Tb

dc.contributorTechnol Fac São Paulo
dc.contributorUniversidade Federal de São Paulo (UNIFESP)
dc.creatorSoares, J. V.
dc.creatorGugliotti, C. F.
dc.creatorKawashima, Y. S.
dc.creatorTatumi, Sonia Hatsue [UNIFESP]
dc.creatorMittani, Juan Carlos Ramirez [UNIFESP]
dc.date.accessioned2016-01-24T14:38:16Z
dc.date.accessioned2022-10-07T20:40:45Z
dc.date.available2016-01-24T14:38:16Z
dc.date.available2022-10-07T20:40:45Z
dc.date.created2016-01-24T14:38:16Z
dc.date.issued2014-12-01
dc.identifierRadiation Measurements. Oxford: Pergamon-Elsevier B.V., v. 71, p. 78-80, 2014.
dc.identifier1350-4487
dc.identifierhttp://repositorio.unifesp.br/handle/11600/38520
dc.identifier10.1016/j.radmeas.2014.05.015
dc.identifierWOS:000347494400017
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/4021072
dc.description.abstractIn the present work policrystals of alpha - Al2O3 doped with terbium were synthesized using the solvent evaporation method. the samples were prepared using Al(NO3)(3)center dot 9H(2)O and Tb(NO3)(3).5H(2)O reagents, with Tb concentrations between 1 and 5 mol% and thermally treated at high temperature above similar to 1400 degrees C. X-ray diffraction measurements showed the a-phase formation of samples. TL glow curve presented an intense peak at similar to 190 degrees C and two other with low intensity at 290 and 350 degrees C after gamma irradiation. the best doping concentration which presented high luminescence was the sample doped with 3 mol% of Tb. U spectra and fluorescence measurements showed similar luminescence spectra with lines attribute to Tb3+ ions. A linear behavior to gamma dose between 1 and 20 Gy was observed in TL, using 190 degrees C peak as well as in OSL signal, this last carried out using 532 nm wavelength stimulation. (C) 2014 Elsevier B.V. All rights reserved.
dc.languageeng
dc.publisherElsevier B.V.
dc.relationRadiation Measurements
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.rightsAcesso restrito
dc.subjectAl2O3
dc.subjectThermoluminescence
dc.subjectOptically stimulated luminescence
dc.subjectTL spectra
dc.subjectFluorescence
dc.titleThermo luminescence and optically stimulated luminescence characteristics of Al2O3 doped with Tb
dc.typeArtigo


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