PHOSPHOR, RADIATION IMAGE RECORDING AND REPRODUCING METHOD AND RADIATION IMAGE STORAGE PANEL

摘要

A divalent europium activated complex halide phosphor having the formula (I): M sec X2.aM sec X min 2.bM min X sec :xEu<2><+> (I) in which M sec is at least one alkaline earth metal selected from the group consisting of Ba, Sr and Ca; M min is at least one alkali metal selected from the group consisting of Rb and Cs; each of X and X min is at least one halogen selected from the group consisting of C l , Br and I, and X NOTEQUAL X min ; X sec is at least one halogen selected from the group consisting of F, C l , Br and I; and a b and x are numbers satisfying the conditions of 0.1