DE2759699

Oxyhalides of lanthanum and/or gadolinium coactivated with thulium and terbium are phosphors found to have the advantages of reduced afterglow and increased ultraviolet emisson. The relative speed of the phosphors is also quite high. These phosphors are used in x-ray image converters generally, and...

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Bibliographische Detailangaben
1. Verfasser:	RABATIN, JACOB GEORGE, CHARDON, OHIO, US
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMISTRY DYES GAMMA RAY OR X-RAY MICROSCOPES IRRADIATION DEVICES MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NUCLEAR ENGINEERING NUCLEAR PHYSICS PAINTS PHYSICS POLISHES TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOTOTHERWISE PROVIDED FOR
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Beschreibung
Zusammenfassung:	Oxyhalides of lanthanum and/or gadolinium coactivated with thulium and terbium are phosphors found to have the advantages of reduced afterglow and increased ultraviolet emisson. The relative speed of the phosphors is also quite high. These phosphors are used in x-ray image converters generally, and can be used in such devices as x-ray image intensifier tubes, in fluoroscopic screens and in radiographic intensifier screens.