Patent ID: 6815692
Filing Date: 2004-11-09
Classification: G03B

Abstract:
A radiation image storage panel having a deposited phosphor layer, wherein the phosphor layer comprises an alkali metal halide stimulable phosphor having the formula (I):MIXÂ·aMIIXâ€²2.bMIIIXâ€³3:yA, zOâ€ƒâ€ƒ(I) in which MI is at least one alkali metal element selected from the group consisting of Li, Na, K, Rb and Cs; MII is at least one alkaline earth metal element or divalent metal element selected from the group consisting of Be, Mg, Ca, Sr, Ba, Ni, Cu, Zn and Cd; MIII is at least one rare earth element or trivalent metal element selected from the group consisting of Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Al, Ga and In; each of X, Xâ€² and Xâ€³ independently is at least one halogen selected from the group consisting of F, Cl, Br and I; A is at least one rare earth element or metal element selected from the group consisting of Y, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Na, Mg, Cu, Ag, Tl and Bi; and a, b, y and z are numbers satisfying the conditions of 0&lE;a<0.5, 0&lE;b<0.5, 0oxygen contents represented by z1 and z2 at optionally determined two areas in the phosphor layer satisfy the condition of 0.2&lE;z1/z2&lE;5.