An interactive process in the mechanism of the thermally stimulated luminescence of anion-defective alpha-Al2O3 crystals / Milman II,Kortov VS,Nikiforov SV // RADIATION MEASUREMENTS. - 1998. - V. 29, l. 3-4. - P. 401-410.

ISSN/EISSN:

1350-4487 / нет данных

Type:

Article; Proceedings Paper

Abstract:

The role played by deep traps in the appearance of specific features of the thermally stimulated luminescence (TL) of anion-defective alpha-Al2O3 single crystals is reported. The existence of deep traps has been proved by direct observations of the TL peaks associated with these traps. From the experimental evidence it is adduced that the degree of occupancy of the deep traps affects the basic features of the main TL peak at 450 K. A model of an interactive trap system is proposed. The main difference of this model from those described in the literature is that it allows for the temperature dependence of the probability of the charge carriers to be captured at the deep traps. The proposed model was used to calculate the basic TL parameters of the main peak (the TL output and the shape of the glow curve) of the crystals in question as a function of the heating rate and the occupancy of the deep traps. The calculated values are similar to those observed experimentally. (C) 1998 Published by Elsevier Science Ltd. All rights reserved.

Author keywords:

PHOTOTRANSFERRED THERMOLUMINESCENCE; OPTICAL-PROPERTIES; TL; SENSITIZATION; EXOEMISSION; DETECTORS

DOI:

10.1016/S1350-4487(98)00063-8

Web of Science ID:

ISI:000075063100034

Соавторы в МНС:

Другие поля

Поле	Значение
Month	JUN-AUG
Note	3rd International Symposium on Luminescent Detectors and Transformers of Ionising Radiation (LUMDETR 97), USTRON, POLAND, OCT 06-10, 1997
Publisher	PERGAMON-ELSEVIER SCIENCE LTD
Address	THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
Language	English
Keywords-Plus	PHOTOTRANSFERRED THERMOLUMINESCENCE; OPTICAL-PROPERTIES; TL; SENSITIZATION; EXOEMISSION; DETECTORS
Research-Areas	Nuclear Science \& Technology
Web-of-Science-Categories	Nuclear Science \& Technology
ResearcherID-Numbers	Nikiforov, Sergey/D-6874-2017
ORCID-Numbers	Nikiforov, Sergey/0000-0001-7797-8267
Number-of-Cited-References	32
Usage-Count-Since-2013	2
Journal-ISO	Radiat. Meas.
Doc-Delivery-Number	105FY