title: X-ray refraction-enhanced imaging and a method for phase retrieval for a simple object.
abstract: Refraction-enhanced imaging is now widely used for imaging low-absorption-contrast specimens in the hard X-ray region. However, the interpretation of the details of a refraction-enhanced image is not always clear. In this paper the theoretical treatment of refraction-enhanced imaging and a method for phase retrieval from refraction-contrast images are discussed in comparison with angular-deflection mapping of the transmitting beam. The problems of thick and complicated objects are also discussed.
authors.affiliation: SPring-8/JASRI, Mikazuki, Hyogo 679-5198, Japan.
authors.forename: Yoshio
authors.initials: Y
authors.lastname: Suzuki
authors.forename: Naoto
authors.initials: N
authors.lastname: Yagi
authors.forename: Kentaro
authors.initials: K
authors.lastname: Uesugi
mesh_terms: D001718:Birefringence; D006801:Humans; D016247:Information Storage and Retrieval / Q000379:methods*; D008168:Lung / Q000000981:diagnostic imaging; D008858:Microscopy, Phase-Contrast / Q000379:methods; D008962:Models, Theoretical; D011856:Radiographic Image Enhancement / Q000379:methods*