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Thermoluminescence, structural and magnetic properties of a Li2O-B2O3-Al2O3 glass system doped with LiF and TiO2 |
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| Authors: | W.E.F. Ayta V.A. Silva M.A.P. Silva N.O. Dantas |
| Affiliation: | a Laboratório de Novos Materiais Isolantes e Semicondutores (LNMIS), Instituto de Física, Universidade Federal de Uberlândia, CEP 38400-902, Uberlândia, Minas Gerais, Brazil b Institute de Física, Universidade de São Paulo, CEP 05508-900, São Paulo, SP, Brazil c Instituto de Física de São Carlos—USP, CEP 13560-250, São Carlos, SP, Brazil d Centro Universitário Central Paulista—UNICEP, CEP 13563-470, São Carlos, SP, Brazil |
| Abstract: | A Li2O-B2O3-Al2O3 glass system, un-doped and doped with LiF, and/or TiO2 was synthesized by the fusion method and its physical properties were investigated by thermoluminescence (TL), X-ray diffraction (XRD), electron paramagnetic resonance (EPR), atomic force microscopy (AFM) and differential thermal analysis (DTA). The samples were subjected to γ-rays from a colbalt-60 (60Co) source. These techniques provided evidence of LiF and LiF doped with Ti crystal formation in the glass system. A TL glow peak at about 433 K was sensitive to 60Co γ-rays and showed good linearity with doses and consequently could be used to quantify radiation doses. |
| Keywords: | Thermoluminescence Electron paramagnetic resonance Lithium fluoride Titanium oxide Glasses Ionizing radiation |
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