Radiation Protection Dosimetry Advance Access originally published online on April 27, 2006
Radiation Protection Dosimetry 2006 119(1-4):41-44; doi:10.1093/rpd/nci544
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Deep-trap competition model for TL in
-Al2O3:C heating stage
Department of Technical Physics, The Ural State Technical University, 19 Mira Street, 620002 Ekaterinburg, Russia
* Corresponding author: snik{at}dpt.ustu.ru
The present report deals with the experimental observations of the thermally stimulated migration of charge carriers from trapping centres responsible for the main thermoluminescence (TL) peak at 450 K to a deep trap and, also, the optically stimulated transport of carriers from the deep trap to the main trap, which gives rise to the phototransferred TL at 450 K, in anion-defective
-Al2O3 crystals. The obtained results provide an experimental proof to the adequacy of the assumptions made in the model of the mutual interaction of the main and deep traps in the crystals under study.