Patent ID: 7154992

Claim:
Phase contrast X-ray device ( 1 ) for creating a phase contrast image ( 17 ) of at least one object ( 4 ), comprising: at least one X-ray source ( 2 ) for generating X-radiation ( 11 ) that has a known spatial coherence ( 15 ) within a predetermined distance ( 6 ) from the X-ray source ( 2 ), and at least one evaluation unit ( 16 ) for converting the X-radiation ( 12 , 13 ) that has passed through the object ( 4 ) that is arranged within the predetermined distance ( 6 ) from the X-ray source ( 2 ) into the phase contrast image ( 17 ) of the object ( 4 ), wherein: the X-ray source ( 2 ) has an output within a range of 50 W up to and including 10 kW; the X-radiation has a spatial coherence length ( 14 ) within the predetermined distance ( 6 ) from the X-ray source ( 2 ) in a range from 0.05 μm up to and including 10 μm; the X-ray source ( 2 ) has a line-shaped focus ( 7 ), a longitudinal extension of the line-shaped focus ( 7 ) being aligned in a direction towards the object ( 4 ).