Evaluation Of The Thermoluminescence Kinetic Paramters Of Zinc-Borosilicate Glass After Gamma-Irradiation

Up until now, there was no detailed study concerning the kinetic parameters of zinc-doped borosilicate glass thermoluminescent (TL) material. A significant TL peak was observed upon gamma irradiating the samples at around 185 deg C. Evaluating activation energy (E), frequency factor (s), and order of kinetics (b) were conventionally obtained by peak shape (PS) method, repeated initial rise (RIR) and variable heating rate (VHR) methods. The obtained results indicated that he zinc-doped borosilicate glass glow curve after gamma irradiation is legitimately a superposition of seven interfered glow peaks. Therefore, we cannot use computerised glow curve deconvolution (CGCD) method alone in determining the kinetic parameters in this case. Additive dose (AD), repeated initial raise (RIR) and variable heating rate (VHR) methods, together with computerised deconvolution method by using the TolAnal software have been applied to determine the kinetic parameters of zinc-borosilicate glass due to the existence of several nearby overlapped peaks.