Patent ID: 10393681

Abstract:
The present invention relates to an X-ray Talbot interferometer including a source grating including a plurality of X-ray transmitting portions, configured to allow some of X-rays from an X-ray source to pass therethrough; a beam splitter grating having a periodic structure, configured to diffract X-rays from the X-ray transmitting portions by using the periodic structure to form an interference pattern; and an X-ray detector configured to detect X-rays from the beam splitter grating. The beam splitter grating diffracts an X-ray from each of the plurality of X-ray transmitting portions to form interference patterns each corresponding to one of the plurality of X-ray transmitting portions. The plurality of X-ray transmitting portions are arranged so that the interference patterns, each corresponding to one of the plurality of X-ray transmitting portions, are superimposed on one another to enhance a specific spatial frequency component in a sideband generated by modulation of the interference patterns.