| 摘要 |
PROBLEM TO BE SOLVED: To provide a radiation image conversion panel giving a high sensitivity and radiation image of high image quality. SOLUTION: The radiation image conversion panel has a phosphor layer of europium-activated cesium bromide group stimulable phosphor of the basic composition formula, MIX.aMIIX'2 .bMIIIX"3 : zEu, [where MI is alkali metal; MII is alkaline-earth metal or divalent metal; MIII is rare earth element or trivalent metal; X, X' and X" are all halogens; a, b and z are figures in the ranges 0<=a<0.5, 0<=b<0.5, 0.0001<=z<=1.0.].
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