Patent ID: 8041004

Claim:
An interferometer for x-rays for obtaining quantitative x-ray images from an object, comprising: a) an x-ray source; b) a diffractive beam splitter grating other than a Bragg crystal; c) a position-sensitive detector with spatially modulated detection sensitivity having a plurality of individual pixels; d) a recording device for recording images from said detector; and e) an evaluating device for evaluating respective intensities for each pixel in a series of the images in order to identify a characteristic of the object for each individual pixel as an absorption-dominated pixel and/or a differential phase contrast-dominated pixel and/or an x-ray scattering-dominated pixel; f) means for generating display data for displaying the evaluated images of the object, wherein an encoding approach is used for differentiating an individual contribution to each individual pixel, and wherein: a value of a differential absorption signal dA(m,n)/dx or an absorption signal dA(m,n) or an absolute value of any of the differential absorption signal or the absorption signal dA(m,n) is assigned to a first codification; a value of a differential phase contrast signal dφ(m,n)/dx or an integrated phase signal φ(m,n) or an absolute value of any of the differential phase contrast signal dφ(m,n)/dx or the integrated phase signal φ(m,n) is assigned to a second codification; and a value of a differential scattering signal dS(m,n)/dx or a scattering signal S(m,n) or an absolute value of any of the differential scattering signal dS(m,n)/dx or the scattering signal S(m,n) is assigned to a third codification.