Patent ID: 7282310
Filing Date: 2007-10-16
Classification: C09K,G03C,G21K

Abstract:
1. A radiation image conversion panel comprising a substrate having thereon a phosphor layer formed by a vapor-accumulation method, wherein the phosphor layer has a thickness distribution of not more than +/−5%, the thickness distribution being defined by the following formula: provided that D max is a maximum thickness of the phosphor layer; and D min is a minimum thickness of the phosphor layer; the thickness distribution of the phosphor layer is isotropic from a center of the radiation image conversion panel; and the phosphor layer contains an alkali metal halide stimulable phosphor represented by Formula (I): wherein, M1 represents an alkali metal atom selected from the group consisting of Li, Na, K, Rb and Cs; M2 represents a divalent metal atom selected from the group consisting of Be, Mg, Ca, Sr, Ba, Zn, Cd, Cu and Ni; M3 represents a trivalent metal atom selected from the group consisting of Sc, Y, La, Ce, Pr, Nd, Pm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Al, Ga and In, X, X′ and X″ each represent independently a halogen atom selected from the group consisting of F, Cl, Br and I; A represents a metal atom selected from the group consisting of Eu, Tb, In, Ce, Tm, Dy, Pr, Ho, Nd, Yb, Er, Gd, Lu, Sm, Y, Tl, Na, Ag, Cu and Mg; and a, b and e each represents a number in a range of 0≦a<0.5, 0≦b<0.5 and 0≦e<1.0, respectively.