title: Deep-trap competition model for TL in alpha-Al2O3:C heating stage.
abstract: 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 alpha-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.
authors.affiliation: Department of Technical Physics, The Ural State Technical University, 19 Mira Street, 620002 Ekaterinburg, Russia.
authors.forename: V S
authors.initials: VS
authors.lastname: Kortov
authors.forename: I I
authors.initials: II
authors.lastname: Milman
authors.forename: E V
authors.initials: EV
authors.lastname: Moiseykin
authors.forename: S V
authors.initials: SV
authors.lastname: Nikiforov
authors.forename: M M
authors.initials: MM
authors.lastname: Ovchinnikov
mesh_terms: D000537:Aluminum Oxide / Q000528:radiation effects*; D003198:Computer Simulation; D017076:Computer-Aided Design; D004307:Dose-Response Relationship, Radiation; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005720:Gamma Rays; D006358:Hot Temperature; D008956:Models, Chemical; D011829:Radiation Dosage; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013819:Thermoluminescent Dosimetry / Q000295:instrumentation* / Q000379:methods
chemical_list: D000537:Aluminum Oxide