Grating interferometer setup consisting of a x-ray tube (Seifert ID3000, tungsten anode operated at ) and three gratings , , and with periods , , and , respectively. The distances between the gratings were and .
Setup for scanning with the grating interferometer. Phase-stepping is achieved by slightly increasing the inter grating distance and using the signal from multiple line detectors in the appropriate sample scanning position.
(a) Intensity profile obtained from the projection of the image (b) along the indicated vertical axis. (b) Image acquired with the Medipix2 detector containing vertical Moiré fringes that arose due to a mismatch in the inter grating distance of .
(a) Absorption image and (b) differential phase contrast image acquired by scanning of a flowerlike test sample made from plastic. In total 840 scanning steps were performed yielding an image of .
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