Open AccessPhase‐Contrast Tomographic Imaging Using an X‐ray Interferometer
Author(s) -
Momose Atsushi,
Takeda Tohoru,
Itai Yuji,
Yoneyama Akio,
Hirano Keiichi
Publication year - 1998
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s0909049597014271
Subject(s) - interferometry , optics , tomography , phase (matter) , interference (communication) , phase contrast imaging , tomographic reconstruction , phase retrieval , visibility , x ray , synchrotron , contrast (vision) , synchrotron radiation , physics , crystal (programming language) , materials science , phase contrast microscopy , computer science , computer network , channel (broadcasting) , programming language , quantum mechanics , fourier transform
Apparatus for phase‐contrast X‐ray computed tomography using a monolithic X‐ray interferometer is presented with some observational results for human breast tissues. Structures characteristic of the tissues were revealed in the phase‐contrast tomograms. The procedure of image analysis consists of phase retrieval from X‐ray interference patterns and tomographic image reconstruction from the retrieved phase shift. Next, feasibility of phase‐contrast imaging using a two‐crystal X‐ray interferometer was studied aiming at in vivo observation in the future. In a preliminary study, the two‐crystal X‐ray interferometer was capable of generating fringes of 70% visibility using synchrotron X‐rays.