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RARE EARTH ACTIVATED ALKALINE EARTH METAL FLUOROHALIDE PHOTOSTIMULABLE PHOSPHOR AND RADIATION IMAGE

2025-06-18 18:464540下载
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Provided are a rare earth activated alkaline earth metal fluorohalide stimulable phosphor exhibiting high image quality of radiation images and reduction of luminance degradation, and a radiation image conversion panel employing the stimulable phosphor represented by Formula (1) Ba(1-x)M2(x)FBr(y)I(1-y) : aM1, bLn, cO, wherein M1 is at least an alkali metal selected from the group consisting of Li, Na, K, Rb and Cs; M2 is at least an alkaline earth metal selected from the group consisting of Be, Mg, Sr and Ca; Ln is at least a rare earth element selected from the group consisting of Ce, Pr, Sm, Eu, Gd, Tb, Tm, Dy, Ho, Nd, Er and Yb; and x, y, a, b and c are values meeting the following conditions : 0≤x≤0.3, 0≤y≤0.9, 0≤a≤0.05 0
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