X-ray Phase-contrast Imaging Study of Voids and Fibres in a Polymer Matrix

Abstract

We report X-ray phase-contrast images of voids and glass fibres in a polymer matrix. The phase-contrast images are obtained using both a monolithic 3-refiection asymmetric channel-cut monochromator and analyser with 1�54 A X-rays. The mechanisms of contrast formation in the images of voids and glass fibres are discussed in detail and numerical simulations of the images are found to agree with the experiments.