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Abstract The intention of this study is to explore the thermoluminescence of beta irradiated B 2 O 3 -Li 2 O-ZnF 2 glass. The glow-curve corresponding to 200 Gy shows three… Click to show full abstract
Abstract The intention of this study is to explore the thermoluminescence of beta irradiated B 2 O 3 -Li 2 O-ZnF 2 glass. The glow-curve corresponding to 200 Gy shows three peaks; two weak-intensity peaks at 60 and 243 °C and a more prominent one at 118 °C, when measured at 1 °C/s. The dose response of the main peak at 118 °C was found to be sublinear in the range 200–1000 Gy. Regarding the kinetic analysis of the main peak, the activation energy of the corresponding electron trap was evaluated as 0.96 eV and the frequency factor as ∼10 11 s −1 . It is proposed that the thermoluminescence in B 2 O 3 -Li 2 O-ZnF 2 glass is due to recombination of electrons, thermally released from Zn + ionic defect sites, with the holes at boron-oxygen hole centres.
Journal Title: Radiation Measurements
Year Published: 2017
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