New first order model of thermoluminescence as a function of peak temperature and intensity considering thermal quenching effect

The thermal quenching effect has not been considered in current research on the first-order kinetics of thermoluminescence. In contrast, thermal quenching as a reality should be contained in theoretical models. In this work, a new fitting function of the thermoluminescence glow curve in terms of peak temperature and intensity is obtained by considering the thermal quenching effect for the first-order kinetics model. The new function reduces to the known first-order fit function by removing thermal quenching parameters. The obtained function was applied to the glow curve of the CaF2:Mn (TLD-400) dosimeter. Since the new model differs from the known first-order fit function, different kinetic parameters extract as the result of the fitting procedure. As the new model involves the thermal quenching effect as a physical entity, the kinetic parameters obtained from the presented model are more accurate and realistic.