  We present a multi-aperture analyser set-up for performing X-ray phase
contrast imaging in planar and three-dimensional modalities. A multi-slice
representation of the sample is used to establish a quantitative relation
between projection images and the corresponding three-dimensional
distributions, leading to successful tomographic reconstruction. Sample
absorption, phase and scattering are retrieved from the measurement of five
intensity projections. The method is experimentally tested on custom built
phantoms with synchrotron radiation: sample absorption and phase can be
reliably retrieved also in combination with strong scatterers, simultaneously
offering high sensitivity and dynamic range.
