THE DEGRADATION BEHAVIOR OF LAOBR-TB UNDER CATHODE-RAY EXCITATION

Authors
RONDA CR BECHTEL H KYNAST U WELKER T
Citation
Cr. Ronda et al., THE DEGRADATION BEHAVIOR OF LAOBR-TB UNDER CATHODE-RAY EXCITATION, Journal of applied physics, 75(9), 1994, pp. 4636-4641
Citations number
17
Categorie Soggetti
Physics, Applied
Journal title
Journal of applied physics → ACNP
ISSN journal
00218979
Volume
75
Issue
9
Year of publication
1994
Pages
4636 - 4641
Database
ISI
SICI code
0021-8979(1994)75:9<4636:TDBOLU>2.0.ZU;2-7
Abstract
Investigations on the degradation behavior of LaOBr:Tb phosphors under cathode-ray excitation are presented. The microscopic nature of defec ts created under prolonged electron bombardment has been identified us ing extended optical analyses on aged LaOBr:Tb phosphor screens and su pported by ion desorption experiments performed in an ultrahigh vacuum system. The degradation behavior of LaOBr:Tb can be improved consider ably by codoping this phosphor with chloride or iodide.