Patent ID: 9031201
Filing Date: 2015-05-12
Classification: A61B,G01N,G21K,H01J

Abstract:
1. An X-ray imaging apparatus comprising: an X-ray source including an electron source and a target, the target having a plurality of projections, each of the plurality of projections having an emitting surface; a diffraction grating configured to diffract X rays emitted from the X-ray source; and a detector configured to detect the X rays diffracted by the diffraction grating, wherein electron beams output from the electron source are incident on the emitting surfaces of the plurality of projections so that X rays are emitted from the emitting surfaces and are output to the diffraction grating, the X rays emitted from the emitting surfaces are diffracted by the diffraction grating so as to form a plurality of interference patterns, the plurality of projections are arranged such that bright portions of the plurality of interference patterns overlap each other and such that dark portions of the plurality of interference patterns overlap each other, and distances from the plurality of emitting surfaces to the diffraction grating are equal to each other.