Phase-contrast x-ray imaging (PCI) is an innovative method that is sensitive to the refraction
of the x-rays in matter. PCI is particularly adapted to visualize weakly absorbing details like …

Although early demonstration dates back to the mid-sixties, x-ray phase-contrast imaging
(XPCI) became hugely popular in the mid-90s, thanks to the advent of 3rd generation …

Imaging with visible light today uses numerous contrast mechanisms, including bright-and
dark-field contrast, phase-contrast schemes and confocal and fluorescence-based methods …

X-ray imaging is a standard tool for the non-destructive inspection of the internal structure of
samples. It finds application in a vast diversity of fields: medicine, biology, many engineering …

We report on progress in algorithms for iterative phase retrieval. The theory of convex
optimization is used to develop and to gain insight into counterparts for the nonconvex …

X-ray sources are developing rapidly and their coherent output is growing correspondingly.
The increased coherent flux from modern X-ray sources is being matched with an …

The basic principles of x-ray image formation in radiology have remained essentially
unchanged since Röntgen first discovered x-rays over a hundred years ago. The …

We report on a non-interferometric technique enabling dark-field imaging by using
incoherent illumination and two achromatic optical elements. The simultaneous retrieval of …

In the past few years, X-ray phase-contrast and dark-field imaging have evolved to be
invaluable tools for non-destructive sample visualisation, delivering information inaccessible …

X-ray imaging has been boosted by the introduction of phase-based methods. Detail
visibility is enhanced in phase contrast images, and dark-field images are sensitive to …