Abstract
In this paper, we report a modelling investigation of the thermoluminescence mechanisms for the important dosimetric LaAlO3:C crystals, which were grown by solid state reaction method. The aim of this work is to develop for the first time an algorithm that permits the numerical solution of the relevant sets of differential equations governing the different stages of the experimental procedure. The glow curve measured at 10K/s typically consists of three prominent peaks at 417 K, 494 K and 549 K and a minor glow peak at around 372 K. In this work, we show that this TL output behaviour can rather easily be explained within the framework of the 4T1R model. Good agreement between the experimental data and calculations from the model is obtained for this kind of dosimetric material. Results presented here confirm that the LaAlO3:C system an excellent candidate that can be used as a TL dosimeter in UV fields.
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