Differential phase-contrast imaging with improved sampling

摘要: The present invention relates to differential phase-contrast imaging of an object. For increasing spatial resolution X-ray system (2) the size a detector pixel element (8) may be considered limiting factor. Accordingly, it beneficial increase apparatus (38) for without further reducing area individual (8). with improved sampling is provided, comprising source (4), first grating G1 (24), second G2 (26) and (6) plurality elements (8), each having A. An object imagined (14) arrangeable between (4) (6). (24) as well are operatively coupled acquisition image (14). At least one comprise A 1 pitch p 2 different from pitch.