Beam hardening correction in polychromatic x-ray grating interferometry

Academic Article


  • The beam hardening is one of the two causes of the fringe shift distortion in polychromatic X-ray grating interferometry. Based on the assumption of the uniform energy dependence, we developed a novel analytic approach to accurately retrieve the monochromatic attenuation function and fringe phase shift from the polychromatic measurement. This approach provides a useful tool for precise measurement of sample electron density distribution in X-ray grating interferometry.
  • Authors

    Published In

  • Optics Express  Journal
  • Digital Object Identifier (doi)

    Author List

  • Yan A; Wu X; Liu H
  • Start Page

  • 24690
  • End Page

  • 24704
  • Volume

  • 25
  • Issue

  • 20