US Patent 7403593 Hybrid x-ray mirrors

An x-ray mirror provides focusing and monochromatization while maintaining a high degree of reflectivity. The mirror has at least two mirror portions, one with a multilayer surface that provides the desired monochromating, and the other with a total external reflection surface. The multiple surfaces combine to provide the desired focusing of the x-rays from a source to a focus point. A variety of configurations may be used, each of which does the desired focusing and monochromatization with minimal energy loss. Relative positioning of the mirror portions may also allow for adjustment of the focus length.