Thermo luminescence and optically stimulated luminescence characteristics of Al2O3 doped with Tb
dc.contributor.author | Soares, J. V. | |
dc.contributor.author | Gugliotti, C. F. | |
dc.contributor.author | Kawashima, Y. S. | |
dc.contributor.author | Tatumi, Sonia Hatsue [UNIFESP] | |
dc.contributor.author | Mittani, Juan Carlos Ramirez [UNIFESP] | |
dc.contributor.institution | Technol Fac São Paulo | |
dc.contributor.institution | Universidade Federal de São Paulo (UNIFESP) | |
dc.date.accessioned | 2016-01-24T14:38:16Z | |
dc.date.available | 2016-01-24T14:38:16Z | |
dc.date.issued | 2014-12-01 | |
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.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.description.source | Web of Science | |
dc.format.extent | 78-80 | |
dc.identifier | http://dx.doi.org/10.1016/j.radmeas.2014.05.015 | |
dc.identifier.citation | Radiation Measurements. Oxford: Pergamon-Elsevier B.V., v. 71, p. 78-80, 2014. | |
dc.identifier.doi | 10.1016/j.radmeas.2014.05.015 | |
dc.identifier.issn | 1350-4487 | |
dc.identifier.uri | http://repositorio.unifesp.br/handle/11600/38520 | |
dc.identifier.wos | WOS:000347494400017 | |
dc.language.iso | eng | |
dc.publisher | Elsevier B.V. | |
dc.relation.ispartof | Radiation Measurements | |
dc.rights | Acesso restrito | |
dc.rights.license | http://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy | |
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 |