Luminescence in anion-defective alpha-Al2O3 crystals over the nano-, micro- and millisecond intervals / Surdo AI,Pustovarov VA,Kortov VS,Kishka AS,Zinin EI // NUCLEAR INSTRUMENTS \& METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT. - 2005. - V. 543, l. 1. - P. 234-238.

ISSN/EISSN:

0168-9002 / нет данных

Type:

Article; Proceedings Paper

Abstract:

Optical absorption, thermoluminescence (TL), and stationary and time-resolved spectra of X-ray luminescence (XL) and cathodic luminescence (CL) in anion-defective alpha-Al2O3 crystals have been studied. It was found that the XL and CL spectra were dominated by the luminescence of F+-centers over the nanosecond interval, Al-i(+)- and Ti3+-centers over the microsecond interval, and F- and Cr3+-centers over the millisecond interval of the relaxation time. It was shown that the luminescence of F+-centers made the decisive contribution to the released energy at the first stage of relaxation. The CL light sum illuminated in the F-band correlated with the TL yield in radiation detectors based on alpha-Al2O3. (c) 2005 Elsevier B.V. All rights reserved.

Author keywords:

color centers; time-resolved luminescence; synchrotron radiation CENTERS; EXCITATION; CORUNDUM; CRYSTALS; ENERGY

DOI:

10.1016/j.nima.2005.01.189

Web of Science ID:

ISI:000229198700050

Соавторы в МНС:

Другие поля

Поле	Значение
Month	MAY 1
Note	15th International Synchrotron Radiation Conference (SR-2004), Novosibirsk, RUSSIA, JUL 19-23, 2004
Publisher	ELSEVIER SCIENCE BV
Address	PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Language	English
Keywords-Plus	CENTERS; EXCITATION; CORUNDUM; CRYSTALS; ENERGY
Research-Areas	Instruments \& Instrumentation; Nuclear Science \& Technology; Physics
Web-of-Science-Categories	Instruments \& Instrumentation; Nuclear Science \& Technology; Physics, Nuclear; Physics, Particles \& Fields
Author-Email	ais@dpt.ustu.ru
Number-of-Cited-References	8
Usage-Count-Since-2013	3
Journal-ISO	Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip.
Doc-Delivery-Number	927MT