title: Phase-contrast X-ray imaging with a large monolithic X-ray interferometer.
abstract: To increase the field of view for large objects in phase-contrast X-ray imaging, a large monolithic X-ray interferometer has been fabricated using an available silicon ingot of diameter 10 cm. A performance study of this interferometer has been carried out using a synchrotron X-ray source. The view size of the interference pattern obtained with this interferometer was 25 mm wide and 15 mm high and its visibility was 79%. Various structures of a sliced human hepatocellular carcinoma were identified as necrosis, hemorrhagic necrosis, normal liver tissue and blood vessel. The performance of this interferometer was sufficient for phase-contrast X-ray imaging.
authors.affiliation: Department of Radiology, Institute of Clinical Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba-shi, Ibaraki 305-8575, Japan. ttakeda@md.tsukuba.ac.jp
authors.forename: T
authors.initials: T
authors.lastname: Takeda
authors.forename: A
authors.initials: A
authors.lastname: Momose
authors.forename: Q
authors.initials: Q
authors.lastname: Yu
authors.forename: J
authors.initials: J
authors.lastname: Wu
authors.forename: K
authors.initials: K
authors.lastname: Hirano
authors.forename: Y
authors.initials: Y
authors.lastname: Itai