Time-resolved photoluminescence of LaBr3:Ce scintillation crystals under ultrasoft X-ray excitation / Pustovarov V. A.,Ivanov V. Yu,Vyprintsev D. I.,Shvalev N. G. // TECHNICAL PHYSICS LETTERS. - 2012. - V. 38, l. 9. - P. 784-788.

ISSN/EISSN:

1063-7850 / 1090-6533

Type:

Article

Abstract:

Time-resolved X-ray-induced photoluminescence (PL) of LaBr3:Ce scintillation spectrometer crystals excited by synchrotron radiation with photon energies within 45-290 eV has been studied at 7.5 and 295 K. It is established that the PL response is essentially nonproportional to the exciting photon energy in the regions of photoionization of the Br 3d and La 4d levels and especially in the vicinity of the giant resonance. The PL decay kinetics in the spectral region corresponding to the d -> f luminescence of Ce3+ ions is nonexponential. The decay time is smaller than 15 ns and depends on the exciting photon energy and radiation wavelength. The influence of the products of interaction of these hygroscopic crystals with atmosphere on the spectral and kinetic characteristics of X-ray-induced PL has been determined.

Author keywords:

CE3+

DOI:

10.1134/S1063785012090106

Web of Science ID:

ISI:000309724600003

Соавторы в МНС:

Другие поля

Поле	Значение
Month	SEP
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
EISSN	1090-6533
Keywords-Plus	CE3+
Research-Areas	Physics
Web-of-Science-Categories	Physics, Applied
Author-Email	vpustovarov@bk.ru
Funding-Acknowledgement	HASYLAB (DESY) Laboratory {[}II-20080119 EC]
Funding-Text	This study was supported in part (for Ural Federal University, Yekaterinburg) by the HASYLAB (DESY) Laboratory, project no. II-20080119 EC.
Number-of-Cited-References	8
Usage-Count-Last-180-days	1
Usage-Count-Since-2013	4
Journal-ISO	Tech. Phys. Lett.
Doc-Delivery-Number	019GD