Effect of pre-readout annealing treatments on TL mechanism in tellurite glasses at therapeutic radiation doses level |
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Authors: | R El-Mallawany HM Diab |
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Affiliation: | Physics Dept., Science College, Northern Borders University, Saudi Arabia |
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Abstract: | The higher sensitization for thermal annealing on TL mechanism in the region 550–600 °C for 80(TeO2)–5(TiO2)–(15 − x) (WO3)–(x) AnOm where AnOm = Nb2O5, Nd2O3, Er2O3 and x = 5 mol% has been measured. The behavior of trap centers and luminescence centers has been investigated for tellurite glasses doped with rare earth oxides irradiated at 0.5 up to 2 Gy and annealed at different temperatures in the range 350–700 °C. The behavior of the three types of tellurite glasses is analyzed regarding to their kinetic parameters and luminescence emission which enhance the claim of tellurite glasses for use as TLD material at therapeutic radiation doses. |
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Keywords: | Thermoluminescence Tellurite glasses Sensitization Kinetic parameters |
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