Radiation Detectors for Medical Imaging

10

Grating-Based Phase-Contrast X-Ray Imaging Technique

Salim Reza

It seemed at first a new kind of invisible light.

It was clearly something new, something unrecorded.

There is much to do, and I am busy, very busy.

—W.C. Röntgen, November 8, 1895.

Phase-contrast X-ray imaging (PCXI) has recently received much attention from researchers within different disciplines because of its ability to image low-absorbent soft materials and also materials with homogeneous density distribution. In this method, an image of an object is constructed based on the phase shift of the wave passing through it. The enhanced edge effect is also a significant advantage in cases where the observation of the inner structures of any object is of interest. Typical grating-based ...