FLUORESCENT MATERIAL, ITS PRODUCING METHOD AND SCINTILLATOR

PROBLEM TO BE SOLVED: To obtain a LuAG (lutetium aluminum garnet) sintered compact having sufficient properties as a scintillator to be used in a PET detector. SOLUTION: The raw materials are mixed wetly by using a ball mill using an alumina ball at a mixing step. Ethanol is used as a solvent in thi...

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Bibliographische Detailangaben
1. Verfasser:	MATSUMOTO TAISEI
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMISTRY DYES GAMMA RAY OR X-RAY MICROSCOPES IRRADIATION DEVICES MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE MEASUREMENT OF NUCLEAR OR X-RADIATION MEASURING 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 TESTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To obtain a LuAG (lutetium aluminum garnet) sintered compact having sufficient properties as a scintillator to be used in a PET detector. SOLUTION: The raw materials are mixed wetly by using a ball mill using an alumina ball at a mixing step. Ethanol is used as a solvent in this case, for example. The mixing time can be 12-40 hours. When TEOS (tetraethylorthosilicate) is used particularly as a Si raw material, it is easy to mix TEOS uniformly with ethanol since TEOS is liquid at normal temperature. When the Si content is made larger, it can be recognized that the luminuous intensity is decreased and the resolution is also deteriorated gradually (becomes larger). Even when the Si content is