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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… Click to show full abstract
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.
Keywords:
ray grating;
beam hardening;
polychromatic ray;
grating interferometry
Journal Title: Optics express
Year Published: 2017
Link to full text (if available)
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Journal Title: Optics express
Year Published: 2017
Link to full text (if available)
Share on Social Media: Sign Up to like & get
recommendations!