THE ANALYSIS OF THERMOLUMINESCENT GLOW PEAKS OF NATURAL CALCITE AFTER BETA IRRADIATION

摘要

In this study, the thermoluminescence properties of natural calcite samples were examined in detail. The glow curve of the sample irradiated with beta radiation shows two main peaks, PI (at 115℃) and P4 (at 254 ℃). The additive dose, variable heating rate, computer glow curve deconvolution, peak shape and three point methods have been used to evaluate the trapping parameters, namely the order of kinetics (b), activation energy (E) and the frequency factor (s) associated with the dosimetric thermoluminescent glow peaks (P1 and P4) of natural calcite after different dose levels with beta irradiation.