X-ray imaging apparatus
AssigneeCanon Kabushiki Kaisha
InventorsToru Den, Kimiaki Yamaguchi, Chidane Ouchi
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Abstract
An X-ray imaging apparatus comprises a grating configured to form an interference pattern by diffracting X-rays from an X-ray source, a amplitude grating configured to partly shield X-rays forming the interference pattern, and an X-ray detector configured to detect an intensity distribution of X-rays from the amplitude grating. The amplitude grating is comprised of a central area and a peripheral area and the peripheral area shows an X-ray transmittance higher than the central area relative to X-rays perpendicularly entering the amplitude grating.
Claims7
An X-ray imaging apparatus configured to image an object, the apparatus comprising:
- a grating configured to form an interference pattern by diffracting X-rays from an X-ray source;
- an amplitude grating configured to partly shield X-rays forming the interference pattern;
- and
- an X-ray detector configured to detect an intensity distribution of X-rays from the amplitude grating,
- wherein the amplitude grating is comprised of a central area and a peripheral area, the peripheral area showing an X-ray transmittance higher than the central area relative to X-rays perpendicularly entering the amplitude grating.
Dependencies are inferred from the claim text.