Diffraction grating for X-ray Talbot interferometer, method of manufacturing the same, and X-ray Talbot interferometer

摘要

Provided are a diffraction grating for an X-ray Talbot interferometer, a method of manufacturing the same, and an X-ray Talbot interferometer, the method enabling easy and highly accurate manufacturing of a diffraction grating having grooves with a high aspect ratio. The diffraction grating for an X-ray Talbot interferometer includes a plurality of ridge-like X-ray absorbing portions (20b) formed on a substrate (22) along one direction at predetermined intervals through cutting of a metal film.