FLUORESCENT SUBSTANCE EMITTING LIGHT BY STIMULATION WITH X-RAY

PURPOSE:The titled fluorescent substance, containing a specific bivalent metal in a specific proportion in a rare earth Ta fluorescent substance, having improved X-ray absorption characteristics and emission efficiency, very low afterglow properties, and useful for X-ray intensifying screens. CONSTI...

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Bibliographische Detailangaben
Hauptverfasser:	TAKETEI SATOSHI, SHINOMIYA MOTOICHI, TAKEDA MIZUYASU, NAKAJIMA SHIGEHARU
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES AUXILIARY PROCESSES IN PHOTOGRAPHY CHEMISTRY CINEMATOGRAPHY DYES ELECTROGRAPHY GAMMA RAY OR X-RAY MICROSCOPES HOLOGRAPHY IRRADIATION DEVICES MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NUCLEAR ENGINEERING NUCLEAR PHYSICS PAINTS PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES PHOTOGRAPHY PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES PHYSICS POLISHES TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOTOTHERWISE PROVIDED FOR
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Beschreibung
Zusammenfassung:	PURPOSE:The titled fluorescent substance, containing a specific bivalent metal in a specific proportion in a rare earth Ta fluorescent substance, having improved X-ray absorption characteristics and emission efficiency, very low afterglow properties, and useful for X-ray intensifying screens. CONSTITUTION:A fluorescent substance expressed by the composition formula MaLn1-x-(2/3)aDO4:xTm (M is bivalent metal in Be, Mg, Ca, Sr, Ba, Zn and Cd; Ln is Y, Gd, La or Lu; D is Ta or Nb; 1X10