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

Show simple item record Soares, J. V. Gugliotti, C. F. Kawashima, Y. S. Tatumi, Sonia Hatsue [UNIFESP] Mittani, Juan Carlos Ramirez [UNIFESP] 2016-01-24T14:38:16Z 2016-01-24T14:38:16Z 2014-12-01
dc.identifier.citation Radiation Measurements. Oxford: Pergamon-Elsevier B.V., v. 71, p. 78-80, 2014.
dc.identifier.issn 1350-4487
dc.description.abstract In 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. en
dc.format.extent 78-80
dc.language.iso eng
dc.publisher Elsevier B.V.
dc.relation.ispartof Radiation Measurements
dc.rights Acesso restrito
dc.subject Al2O3 en
dc.subject Thermoluminescence en
dc.subject Optically stimulated luminescence en
dc.subject TL spectra en
dc.subject Fluorescence en
dc.title Thermo luminescence and optically stimulated luminescence characteristics of Al2O3 doped with Tb en
dc.type Artigo
dc.contributor.institution Technol Fac São Paulo
dc.contributor.institution Universidade Federal de São Paulo (UNIFESP)
dc.description.affiliation Technol Fac São Paulo, São Paulo, Brazil
dc.description.affiliation Universidade Federal de São Paulo, Santos, Brazil
dc.description.affiliationUnifesp Universidade Federal de São Paulo, Santos, Brazil
dc.identifier.doi 10.1016/j.radmeas.2014.05.015
dc.description.source Web of Science
dc.identifier.wos WOS:000347494400017


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