Abstract
In the presence of spatial correlation between traps and recombination centres, some thermoluminescence (TL) curves reveal unusual properties that cannot be described in terms of standard kinetic models. In these cases the application of typical theoretical methods for the analysis of TL curves may lead to erroneous results. Using a novel, generalised version of the Monte Carlo algorithm the kinetics of TL is studied for a variety of spatial trap correlations. The algorithm allows calculation of TL with an arbitrary heating function applied that gives the possibility of simulating the use of initial rise methods as well as the fractional glow technique (FGT). It was found that these methods, as well as the various heating rate methods, can also be applied for determination of the activation energy from TL curves in cases when spatial correlation plays an important role. The influence of another experimentally controllable parameter - the initial filling ratio - is also taken into account. Some practical indications are suggested for theoretical analysis of TL glow curves in spatially correlated systems.
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