A method of tomographic phase retrieval is developed for multi-material objects whose
components each has a distinct complex refractive index. The phase-retrieval algorithm …

Phase retrieval extracts quantitative phase information from x-ray propagation-based phase-
contrast images. Notwithstanding inherent approximations, phase retrieval using a single …

We have developed two phase-retrieval techniques for analyser-based phase contrast
imaging that provide information about an object's X-ray absorption, refraction and scattering …

X-ray phase contrast imaging has overcome the limitations of X-ray absorption imaging in
many fields. Particular effort has been directed towards developing phase retrieval methods …

A well‐known problem in x‐ray microcomputed tomography is low sensitivity. Phase contrast
imaging offers an increase of sensitivity of up to a factor of in the hard x‐ray region, which …

In-line phase-contrast X-ray imaging provides images where both absorption and refraction
contribute. For quantitative analysis of these images, the phase needs to be retrieved …

A method is proposed which enables the retrieval of the thickness or of the projected
electron density of a sample from a single input image acquired with an edge illumination …

Phase retrieval is required for achieving artifact-free x-ray phase-sensitive 3D imaging. A
phase-retrieval approach based on the phase-attenuation duality with high energy x-rays …

For coherent X-ray imaging of pure phase objects we study the reliability of linear relations
in phase-retrieval algorithms based on a single intensity map after free-space propagation …

We present a solution to the phase problem in near-field x-ray (propagation) imaging. The
three-dimensional complex-valued index of refraction is reconstructed from a set of …