A method includes obtaining a plurality of the two dimensional arrays of gadolinium oxysulfide. An array has wider width non-silver based spacers (304) that extend between rows or columns of dixels and narrower width non-silver based spacers (306) that extend between the other of the rows or columns of dixels. The method further includes applying a silver coating (312) to at least one of a top or bottom surface of the arrays. The method further includes forming a stack by stacking the silver coated arrays, one on top of another (FIG. 3B), with substantially equal layers of adhesive between adjacent arrays. The method further includes slicing the stack through the wider non- silver based spacers to form two dimensional arrays of scintillator dixels (314) having silver based spacers (312) along at least one direction of the array.
