THE ENERGY-TRANSFER TO THE LUMINESCENCE-CENTERS IN PBWO4

Authors
MILLERS D CHERNOV S GRIGORJEVA L PANKRATOV V
Citation
D. Millers et al., THE ENERGY-TRANSFER TO THE LUMINESCENCE-CENTERS IN PBWO4, Radiation measurements, 29(3-4), 1998, pp. 263-266
Citations number
9
Categorie Soggetti
Nuclear Sciences & Tecnology
Journal title
Radiation measurements → ACNP
ISSN journal
13504487
Volume
29
Issue
3-4
Year of publication
1998
Pages
263 - 266
Database
ISI
SICI code
1350-4487(1998)29:3-4<263:TETTLI>2.0.ZU;2-8
Abstract
The luminescence spectra, rise and decay kinetics and the yield of lum inescence in undoped PbWO4 crystals were studied after pulsed electron beam irradiation. The luminescence intensity rise observed after irra diation pulse showed two mechanisms-excitonic relaxation and electron- hole recombination-were involved in the formation of the excited state s of the blue luminescence centers. It is proposed that the excited st ates of WO3 and WO42- luminescence centers were formed from some inter mediate metastable state. (C) 1998 Elsevier Science Ltd. All rights re served.