Nonlinear extension of the x-ray diffraction enhanced imaging

摘要

Diffraction enhanced imaging is the analyzer-based x-ray imaging technique which allows extraction of the refraction and absorption contrasts from two images taken on the opposite sides of the rocking curve of the analyzer. It is widely used in different fields of science. However, the information provided by the method is qualitative rather than quantitative. This happens because either side of the rocking curve is approximated as a line. One can overcome this problem of considering the rocking curve instead of the approximation. This letter is dedicated to the implementation of this idea and includes theoretical background and experimental validation.