A manufacturing method of a rare-earth element oxide

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PROBLEM TO BE SOLVED : To provide a yttrium-europium oxide which is used for a display and a medical diagnostic X-ray system, has a small particle size, a uniform particle diameter and high utility in industries and can be economically manufactured in a simple process. SOLUTION : The yttrium-europium oxide has a uniform particle diameter of 0.5 to 2 μm. COPYRIGHT : (C)2003, JPO