Beam hardening correction in polychromatic x-ray grating interferometry.
Opt Express
; 25(20): 24690-24704, 2017 Oct 02.
Article
en En
| MEDLINE
| ID: mdl-29041415
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.
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1
Colección:
01-internacional
Banco de datos:
MEDLINE
Idioma:
En
Revista:
Opt Express
Asunto de la revista:
OFTALMOLOGIA
Año:
2017
Tipo del documento:
Article