The interaction of deep traps in anion-defective alpha-Al2O3 / Pelenyov VE,Kortov VS,Milman II // RADIATION MEASUREMENTS. - 2001. - V. 33, l. 5. - P. 629-631.

ISSN/EISSN:

1350-4487 / нет данных

Type:

Article; Proceedings Paper

Abstract:

This paper deals with the examination of thermoluminescence (TL) optical spectra (200-800 nm) for deep traps (DT) observed near 730 K (DT1) and 785 K (DT2) at beta = 2 K/s in dosimetric alpha -Al2O3 crystals. The DT1 spectrum consisted of two luminescence bands near 3.56 and 2.42 eV. The DT2 spectrum had one band near 2.95 eV. The 3.56 eV emission band was assigned to the F+-center luminescence and the 2.95 eV band to the F-center luminescence. The excitation spectra of the 2.42 eV emission band measured at RT had one peak at 4.11 eV. The intensity correlated with filling of deep traps. It was supposed that anion-defective corundum contained complex F-type centers. The state of those centers changed upon exposure to UV irradiation at a high temperature. (C) 2001 Elsevier Science Ltd. All rights reserved.

Author keywords:

thermoluminescence; corundum; deep traps; F-type centers; luminescence emission spectra OPTICAL-PROPERTIES; LUMINESCENCE; CENTERS

DOI:

10.1016/S1350-4487(01)00072-5

Web of Science ID:

ISI:000170916000032

Соавторы в МНС:

Другие поля

Поле	Значение
Month	OCT
Note	4th European Conference on Luminescent Detectors and Transformers of Ionizing Radiation (LUMDETR 2000), RIGA, LATVIA, AUG 14-17, 2000
Organization	European Commiss; Council Sci Latvia
Publisher	PERGAMON-ELSEVIER SCIENCE LTD
Address	THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
Language	English
Keywords-Plus	OPTICAL-PROPERTIES; LUMINESCENCE; CENTERS
Research-Areas	Nuclear Science \& Technology
Web-of-Science-Categories	Nuclear Science \& Technology
Number-of-Cited-References	9
Usage-Count-Last-180-days	1
Usage-Count-Since-2013	3
Journal-ISO	Radiat. Meas.
Doc-Delivery-Number	471EU