| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing photostimulable phosphor imparting an image free from unevenness of luminescence, high in sensitivity and image quality, and to provide a photostimulable phosphor, and a radiation image conversion panel. SOLUTION: The invention relates to the method for producing a precursor for photostimulable phosphor, based on alkaline earth metal fluoride halide activated with rare earth metal, expressed by general formula (1) comprising a process obtaining a crystal of the precursor for the photostimulable phosphor by carrying out a process forming a precipitate of the precursor for photostimulable phosphor based on alkaline earth metal fluoride halide by adding an aqueous solution of an inorganic fluoride into a reaction mother liquid dissolving barium halide and a process concentrating and removing solvent from the reaction mother liquid at the same time, and a process forming a rare earth metal halide layer on the surface of the crystal of the precursor for photostimulable phosphor. The general formula (1); Ba<SB>1-x</SB>M2<SB>x</SB>FBr<SB>y</SB>I<SB>1-y</SB>: aM1, bLn, cO (in the formula, M1 is an alkali metal, M2 is an alkaline earth metal, Ln is a rare earth element, 0≤x≤0.3, 0≤y≤0.3, 0≤a≤0.05. 0<b≤0.2, 0≤c≤0.1). COPYRIGHT: (C)2006,JPO&NCIPI
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