Validation of the model of TSL isothermal decay in dosimetric α-Al 2 O 3 crystals

Nikiforov, S. V.; Lushchik, A.; Nagirnyi, V.; Romet, I.; Ponomareva, A. I.; Ananchenko, D. V.; Moiseykin, E. V.

doi:10.1016/j.radmeas.2019.01.009

Please use this identifier to cite or link to this item: http://elar.urfu.ru/handle/10995/92680

Title:	Validation of the model of TSL isothermal decay in dosimetric α-Al 2 O 3 crystals
Authors:	Nikiforov, S. V. Lushchik, A. Nagirnyi, V. Romet, I. Ponomareva, A. I. Ananchenko, D. V. Moiseykin, E. V.
Issue Date:	2019
Publisher:	Elsevier Ltd
Citation:	Validation of the model of TSL isothermal decay in dosimetric α-Al 2 O 3 crystals / S. V. Nikiforov, A. Lushchik, V. Nagirnyi, I. Romet, et al.. — DOI 10.1016/j.radmeas.2019.01.009 // Radiation Measurements. — 2019. — Iss. 122. — P. 29-33.
Abstract:	New features of isothermal build-up of thermally stimulated luminescence (TSL) related to deep traps in anion-deficient alumina single crystals are revealed. It was found that the TSL build-up at 630–750 K depends on the structure of the glow curve and is associated with the presence of a high-temperature component with T m = 700 K. Isothermal TSL build-up for the peak at 573 K is well expressed in UV-irradiated samples and is very weak after sample irradiation by a pulsed electron beam. The TSL build-up for this peak is registered for the luminescence of F centres but is absent for the emission of F 2 2+ centres and chromium ions. The obtained results confirm the validity of the kinetic model of the TSL build-up that takes into account the process of thermal ionization of the excited states of F centres in aluminum oxide. © 2019 Elsevier Ltd
Keywords:	ALUMINUM OXIDE DEEP TRAPS THERMAL IONIZATION OF F CENTRES THERMALLY STIMULATED LUMINESCENCE TSL BUILD-UP ALUMINA HIGH TEMPERATURE EFFECTS IONIZATION ISOTHERMS METAL IONS SINGLE CRYSTALS THERMOLUMINESCENCE DEEP TRAPS F-CENTRES HIGH TEMPERATURE COMPONENTS IRRADIATED SAMPLES PULSED ELECTRON BEAMS THERMAL IONIZATION THERMALLY STIMULATED LUMINESCENCE TSL BUILD-UP ALUMINUM OXIDE
URI:	http://elar.urfu.ru/handle/10995/92680
Access:	info:eu-repo/semantics/openAccess
SCOPUS ID:	85060296414
WOS ID:	000462798400005
PURE ID:	8871665
ISSN:	1350-4487
DOI:	10.1016/j.radmeas.2019.01.009
Sponsorship:	Eesti Teadusagentuur: IUT2-26, PUT PRG111 Russian Science Foundation, RSF: 18-72-10082 This work was financially supported by the Russian Science Foundation , project No. 18-72-10082 and Estonian Research Council , projects IUT2-26 and PUT PRG111 .
RSCF project card:	18-72-10082
Appears in Collections:	Научные публикации ученых УрФУ, проиндексированные в SCOPUS и WoS CC

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