title: Helical differential X-ray phase-contrast computed tomography.
abstract: We report on the first experimental results of helical differential phase-contrast computed tomography (helical DPC-CT) with a laboratory X-ray tube source and a Talbot-Lau grating interferometer. The results experimentally verify the feasibility of helical data acquisition and reconstruction in phase-contrast imaging, in analogy to its use in clinical CT systems. This allows fast and continuous volumetric scans for long objects with lengths exceeding the dimension of the detector. Since helical CT revolutionized the field of medical CT several years ago, we anticipate that this method will bring the same significant impact on the future medical and industrial applications of X-ray DPC-CT.
authors: Beijing University of Aeronautics and Astronautics, 100191 Beijing, China. Electronic address: fujian706@buaa.edu.cn.
authors: Jian
authors: J
authors: Fu
authors: Technische Universität München, 85748 Garching, Germany.
authors: Marian
authors: M
authors: Willner
authors: Beijing University of Aeronautics and Astronautics, 100191 Beijing, China.
authors: Liyuan
authors: L
authors: Chen
authors: Beijing University of Aeronautics and Astronautics, 100191 Beijing, China.
authors: Renbo
authors: R
authors: Tan
authors: Technische Universität München, 85748 Garching, Germany.
authors: Klaus
authors: K
authors: Achterhold
authors: Technische Universität München, 85748 Garching, Germany; Lund University, Department for Medical Radiation Physics, 22185 Lund, Sweden. Electronic address: martin.bech@tum.de.
authors: Martin
authors: M
authors: Bech
authors: Institute of Materials Research, Helmholtz-Zentrum Geesthacht, 22607 Hamburg, Germany.
authors: Julia
authors: J
authors: Herzen
authors: Karlsruhe Institute of Technology, Institute for Microstructure Technology, 76344 Eggenstein-Leopoldshafen, Germany.
authors: Danays
authors: D
authors: Kunka
authors: Karlsruhe Institute of Technology, Institute for Microstructure Technology, 76344 Eggenstein-Leopoldshafen, Germany.
authors: Juergen
authors: J
authors: Mohr
authors: Technische Universität München, 85748 Garching, Germany. Electronic address: franz.pfeiffer@tum.de.
authors: Franz
authors: F
authors: Pfeiffer
mesh_terms: D007368:Interferometry; D036542:Tomography, Spiral Computed / Q000295:instrumentation / Q000379:methods*
keywords: Computed tomography; Differential phase-contrast; Helical scan