Post-irradiation storage and thermal stability of thermoluminescence glow peaks in LiF:Mg,Cu,Si

Newly developed LiF:Mg,Cu,Si was found to exhibit no significant fading on room temperature post-irradiation storage up to several months. In view of the wide variation in the reported data of fading of LiF:Mg,Cu,P exhibiting glow curve structure similar to that of LiF:Mg,Cu,Si, a study of the effect of post-irradiation storage and thermal treatments on the deconvoluted glow peaks of LiF:Mg,Cu,Si was undertaken. The decay of inseparable peak-3 by post-irradiation storage or thermal treatments did not indicate any rearrangement in the trap occupation that would affect the response of the main peak (peak-4). A post-irradiation treatment at 125 °C for 10 min was found to be the optimum to eliminate the lower temperature peaks.