Figure 2
From: Propagation-based Phase-Contrast X-ray Imaging at a Compact Light Source
Nylon fiber (350 μm diameter) imaged with a detector pixel size of 0.65 μm for different propagation distances. (A) In the contact regime the contrast of the fiber is very weak. In the propagation range between (B) and (C) the edge-enhancement delivers contrast to better visualise the fiber. (D) Due to the source-blurring the edges are smeared out for large distances, but the increased width at this distance means the edge-enhancement can be detected with larger pixels. (E) Intensity profiles across the images in (A–D) (exposure time = 240 s).
