title: Two dimensional x-ray phase imaging using single grating interferometer with embedded x-ray targets.
abstract: Using multidot metal targets embedded in a diamond substrate, we created a single-grating Talbot-Lau interferometer and used it to capture two dimensional (2D) x-ray phase images. The ensemble of these targets constitutes a tiny virtual array of x-ray source and enables x-ray phase-contrast imaging with no source or absorption grating within a 1 m source-detector distance for 8 keV x-rays. We directly resolved a dot-pattern self-image of the phase grating with 6 µm pitch by using an x-ray image detector with 24 µm pixels and obtained 2D differential-phase and dark-field images from a single-exposure. Using the 2D differential-phase images, we also obtained a phase image with no streak artifacts.
authors.forename: Naoki
authors.initials: N
authors.lastname: Morimoto
authors.forename: Sho
authors.initials: S
authors.lastname: Fujino
authors.forename: Amane
authors.initials: A
authors.lastname: Yamazaki
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Ito
authors.forename: Takuji
authors.initials: T
authors.lastname: Hosoi
authors.forename: Heiji
authors.initials: H
authors.lastname: Watanabe
authors.forename: Takayoshi
authors.initials: T
authors.lastname: Shimura