Patent ID: 7276705

Claim:
A luminescent body for an X-ray detector, comprising: a ceramic of the general composition (M 1-x Ln x ) 2 O 2 S, M being at least one element selected from the group consisting of Y, La, Sc, Lu and Gd and Ln being at least one element selected from the group consisting of Eu, Ce, Pr, Tb, Yb, Dy, Sm and Ho, wherein the ceramic is used in the form of fibers, connected in a parallel alignment to constitute a fiber plate; and the ceramic is formed from a compound which contains (M 1-x Ln x ) 3+ ions selected from the group consisting of (M 1-x Ln x )OH 3 .nH 2 O, (M 1-x Ln x ) 2 O 3 and (M 1-x Ln x ) 2 (CO 3 ) 3 .