Analysis of OSL decay characteristics for beta-irradiated potassium chloride samples

Optically stimulated luminescence (OSL) properties of beta irradiated pure potassium chloride (KCl) was studied. The OSL signal was examined depending on the method of sample preparation, absorbed dose, storage time and thermal treatment. Dose-response and fading characteristics were determined. The occurrence of inverse fading in short time scale was confirmed. The analysis of CW-OSL decays was performed. OSL decay curves were deconvolved to show that the annealing at elevated temperatures has significant influence on the shape of OSL decay curves.