A set of terbium-doped silicate glasses densified up to 1050 °C was prepared by the sol-gel method. A broad range of dopant concentrations (0.001-10 mol%) was considered together with an undoped sample as a reference. The effects of a high-temperature (1600-1800 °C) post-densification rapid thermal treatment (RTT) on the luminescence properties of the samples were investigated. RTT enhances the scintillating efficiency of the samples increasing the radio-luminescence intensity up to two orders of magnitude. The relevant effects induced by RTT on radio- and photo-luminescence spectra (RL, PL) and on PL decay curves indicate the occurrence of modifications of the surroundings of Tb3 + luminescence centres. © 2007 Elsevier Ltd. All rights reserved.
Vedda, A., Fasoli, M., Moretti, F., Chiodini, N., Lauria, A., Nikl, M. (2007). Radio-luminescence efficiency and rare-earth dispersion in Tb-doped silica glasses. RADIATION MEASUREMENTS, 42, 784 [10.1016/j.radmeas.2007.02.015].
Radio-luminescence efficiency and rare-earth dispersion in Tb-doped silica glasses
VEDDA, ANNA GRAZIELLA;FASOLI, MAURO;MORETTI, FEDERICO;CHIODINI, NORBERTO;LAURIA, ALESSANDRO;
2007
Abstract
A set of terbium-doped silicate glasses densified up to 1050 °C was prepared by the sol-gel method. A broad range of dopant concentrations (0.001-10 mol%) was considered together with an undoped sample as a reference. The effects of a high-temperature (1600-1800 °C) post-densification rapid thermal treatment (RTT) on the luminescence properties of the samples were investigated. RTT enhances the scintillating efficiency of the samples increasing the radio-luminescence intensity up to two orders of magnitude. The relevant effects induced by RTT on radio- and photo-luminescence spectra (RL, PL) and on PL decay curves indicate the occurrence of modifications of the surroundings of Tb3 + luminescence centres. © 2007 Elsevier Ltd. All rights reserved.
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