Patent ID: 6045722
Filing Date: 2000-04-04
Classification: C09K,G21K,Y10S

Abstract:
A photostimulable phosphor according to formula (I):Ba.sub.1-x-y-p-3q-z Sr.sub.x M.sub.y.sup.2+ M.sub.2p.sup.1+ M.sub.2q.sup.3+ F.sub.2-a-b Br.sub.a I.sub.b :zEuwherein:M.sup.1+ is at least one alkali metal selected from the group consisting of Li, Na, K, Rb and Cs;M.sup.2+ is at least one divalent metal selected from the group consisting of Ca, Mg and Pb;M.sup.3+ is at least one trivalent metal selected from the group consisting of Al, Ga, In, Tl, Sb, Bi, Y, La, Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu;0.ltoreq.x.ltoreq.0.30, 0.ltoreq.y.ltoreq.0.10, 0.ltoreq.p.ltoreq.0.3, 0.ltoreq.q.ltoreq.0.1, 0.05.ltoreq.a.ltoreq.0.76, 0.60.ltoreq.b.ltoreq.0.80, a+b<1.00 and 10.sup.-6 .ltoreq.z.ltoreq.0.2.