Evaluation of trap parameters associated with thermoluminescence peaks in fired quartz

Evaluation of trapping parameters of annealed natural quartz

“…If the peaks are too close to each other, the thermoluminescence intensity from isolated peaks is quite low. Low intensity causes difficulties in accurately recognizing the factors, such as T 1 , T 2 and d. The isolated peak using PS method can often be directly seen in the glow curve [9]. The smaller peaks identified with T m À T stop method are difficult to isolate in the glow curve because it may need to irradiate with relatively higher doses.…”

“…Most of traditional peak analysis methods demand that the peak be isolated. The data for T m À T stop can be used to separate composite TL curves into their constituent components [9,[17][18][19][20]. The results of peak separation will be used as basis of peak shape method.…”

“…The presence of the overlapping peaks is the difficulty in determining trapping parameters [9]. Therefore, there is neither an agreement on the published values of the kinetic parameters obtained from different types of quartz nor consistent progression [7][8][9]. The purpose of this investigation is to determine the trapping parameter of annealed high purity quartz obtained by various methods.…”

“…In the case for quartz, the first-order kinetics has been supported by a majority of literatures, while some other authors believe that some types of quartz exhibiting non-first-order behavior is because of complex overlapping peaks [8]. The presence of the overlapping peaks is the difficulty in determining trapping parameters [9]. Therefore, there is neither an agreement on the published values of the kinetic parameters obtained from different types of quartz nor consistent progression [7][8][9].…”

Comparative study on the effect of annealing treatments on RTL mechanism in natural quartz from different origins

“…The kinetic parameters are determined as described in previous work [5,6] and selected on the base of the best merit factor. These values are given in Table 1 for both quartz and for maximum sensitization.…”