Open AccessTwo-dimensional grating-based X-ray phase-contrast imaging using Fourier transform phase retrieval
Author(s) -
Hidenosuke Itoh,
Kentaro Nagai,
Genta Sato,
K. Yamaguchi,
Takashi Nakamura,
Takeshi Kondoh,
Chidane Ouchi,
Takayuki Teshima,
Yutaka Setomoto,
Tohru Den
Publication year - 2011
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.19.003339
Subject(s) - optics , grating , phase contrast imaging , fourier transform , phase retrieval , phase (matter) , synchrotron radiation , materials science , physics , moiré pattern , spatial frequency , differential phase , talbot effect , phase contrast microscopy , quantum mechanics
We demonstrate a single shot two-dimensional grating-based X-ray phase-contrast imaging using a synchrotron radiation source. A checkerboard designed phase grating for π phase modulation at 17 keV and 35 keV, and a lattice-shaped amplitude grating with a high aspect ratio to shield X-rays up to 35 keV were fabricated. A Fourier analysis of Moiré fringe generated by the gratings was introduced to obtain the two-dimensional differential phase-contrast image with a single exposure. The results show that soft tissues and cartilages of a chicken wing sample are clearly seen with differential phase variation in two-dimensional directions. Using this method not only the whole of an object but also only an inner part of the object can be imaged.