SYSTEM AND METHOD FOR PHASE-CONTRAST X-RAY IMAGING

摘要

A differential phase contrast X-ray imaging system includes an X-ray illumination system, a beam splitter arranged in a radiation path of the X-ray illumination system, and a detection system arranged in a radiation path to detect X-rays after passing through the beam splitter.

主权项

1. A method for phase contrast imaging of an object using an interferometer comprising a multi-sector source grating, a heart splitter grating, and an analyzer grating, wherein the object is positioned between the beam-splitter grating and the analyzer grating, the method comprising:
directing an X-ray beam onto the multi-sector source grating, wherein each sector of the multi-sector source grating is offset by a predetermined amount; obtaining multiple images during a single expose by translating the object or the interferometer, wherein the multiple images have a different interferometer phasing; and combing the multiple images that were obtained to produce a phase contrast image of the object.