Patent ID: 9486175
Filing Date: 2016-11-08
CPC Classification: A61B

Claim Text:
1. An x-ray phase contrast imaging system comprising: a scan arm configured to move with respect to an imaging region; an x-ray source mounted to the scan arm; an x-ray detector mounted to the scan arm opposite the imaging region from the x-ray source, the x-ray detector including a plurality of detector strips arranged in a first direction of the x-ray detector, each detector strip further comprising a plurality of detector pixels arranged in a second direction of the x-ray detector; a phase grating disposed between the x-ray source and the x-ray detector; a plurality of analyzer gratings comprising grating slits, the analyzer gratings being mounted between the imaging region and the x-ray detector and configured to move with the x-ray detector; and; a controller configured to move the scan arm and the x-ray source and the x-ray detector in the first direction, in order to scan an object in the imaging region; wherein each of the plurality of analyzer gratings is arranged in association with a respective one of the detector strips with the grating slits arranged in the second direction; and wherein the grating slits of each analyzer grating offset in the second direction relative to the grating slits of other analyzer gratings.