Devices and methods for aligning X-ray diffraction gratings with X-ray radiation sources, as well as X-ray image acquisition systems

摘要

The present invention relates to a device for aligning an X-ray diffraction grating with an X-ray radiation source, wherein the device 10 includes at least two flat X-ray grating segments 11-19 and at least two flat X-ray gratings. It comprises at least one alignment unit 31-39 for aligning one X-ray grating segment of the segments, and at least two flat X-ray grating segments 11-19 are arranged side by side. , The X-ray diffraction grating 20 is formed, and at least two flat X-ray diffraction grating segments 11 to 19 each include a diffraction grating surface 41 to 49 for X-ray radiation, and each diffraction grating surface 41 to 49 , The normals 21-29 for each of the grating planes 41-49 define a common plane 73, and the normals 21-29 intersect the geometric centers of the grating planes 41-49. , At least the first X-ray grating segment of at least two flat X-ray grating segments 11-19 is rotatable around axes 131-139 perpendicular to the common plane 73 and axes 131-139. The first X-ray grating segment of at least two flat X-ray grating segments 11-19 that is rotatable around is the first alignment of at least one alignment unit 31-39. Connected to the unit. The present invention provides a device 10 and a method 100 that provide an improved X-ray diffraction grating 20.