Patent ID: 8165270

Claim:
A method for producing x-ray-optical gratings for x-ray dark field imaging and for x-ray phase contrast imaging, comprising the steps of: applying an x-ray-sensitive layer with an electrically conductive cover layer on a base plate; transferring a grating structure into the x-ray-sensitive layer with a lithographic method, creating exposed and unexposed regions; dissolving the exposed regions of the x-ray-sensitive layer so that a grating structure remains; introducing a metal into the grating interstices by electroplating; removing the x-ray-sensitive material and the base plate so a negative impression of a grating made of metal remains; producing a grating made of a first material with this negative impression that has a plurality of periodically arranged grating webs and grating openings; and filling the grating openings with a second material by electroplating, by continuing the electroplating until a cohesive layer of the second material is created over the grating webs.