Patent ID: 8617422

Claim:
A scintillation material, comprising a crystal consisting essentially of: T 2x Lu 2(1-x-y-z) Y 2y Gd 2z SiO 5 ; and at least one divalent codopant, wherein T is a trivalent activator dopant selected from the group consisting of Pr, Eu, Er and Yb, 0<2x<0.2, 0â‰¦2yâ‰¦2(1âˆ’x), 0â‰¦2zâ‰¦2(1âˆ’x), and 0â‰¦(y+z)â‰¦(1âˆ’x), wherein the ratio (a):(b) of the divalent dopant concentration (a) to the trivalent activator dopant concentration (b) is about 1:1, to maximize light output.