NARROW BAND X-RAY SYSTEM AND FABRICATION METHOD THEREOF

摘要

A narrow band x-ray filter can include a substrate (302) and a sheaf of one or more reflection units (320) stacked upon each other on the substrate. Each reflection unit can include a first set of at least two discrete spacers (304) on a respective underlying structures, a reflector disposed on the first set of spacers so as to form a void (322) between the respective underlying structure and the reflector and a first set of at least two discrete shims (306) disposed on the first set of at least two spacers, each shim being at least substantially the same thickness as the reflector. A first device to produce a narrow band x-ray beam may include such a filter or an x-ray telescope. A second device to make an x-ray image of a subject may include the first device.