Heating rate effect on thermoluminescence glow curves of LiF:Mg,Cu,P+PTFE phosphor

The influence of heating rate on the thermoluminescence (TL) property of LiF:Mg,Cu,P+PTFE was analyzed. The activation energy and the frequency factor as a function of the heating rate were determined. The kinetic parameters and their dependence on the heating rate were evaluated using the sequential quadratic programming glow curve deconvolution (SQPGCD). The results showed that as the heating rate increases, the peak intensity at the maximum (IM) decreases and shifts to higher temperature; similar behavior of the kinetics parameters was observed.

► Heating rate influence on the thermoluminescence (TL) property of LiF:Mg,Cu,P was analyzed.
► The kinetic parameters, activation energy and frequency factor were evaluated using the sequential quadratic programming glow curve deconvolution.
► The peak intensity at the maximum (IM) of the glow curves decreases.
► Shifts to higher temperature were observed as the heating rate increased.
► Similar behavior of the kinetics parameters was noticed.