Kinetic analysis of a a -Al2O3 (TLD-500) thermoluminescent (TL) dosimeter was performed following
irradiating the samples with
60
Co gamma rays. The number of glow peaks contained in the complex glow
curve of this phosphor was identified using the Tm Tstop method, which demonstrates three component
glow peaks. A computerized glow curve deconvolution (CGCD) program was used to determine the
trapping parameters of the three constituent glow peaks obtained at different dose levels and different
populations of trapping states. To analyze the number of constituent glow peaks, we used a kinetic model
to describe both the irradiation and heating stages. The predictions of the model for the TL response
agreed well with the experimental data when three dosimetry traps were incorporated.
کلید واژگان :
TLD-500 Peak components Trap populations Kinetic parameters TL model
