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Title: Feasibility study of a high-spatial resolution x-ray computed tomography using sub-pixel shift method

A high-spatial resolution X-ray computed tomography (CT) adopting a sub-pixel shift method has been developed. By calculating sectional images, using plural CT datasets obtained by scanning the X-ray imager, the spatial resolution can be reduced relative to the sub-pixel size of an X-ray imager. Feasibility observations of a biomedical sample were performed using 12-keV monochromatic synchrotron radiation and a photon-counting X-ray imager 174-μm pixels in size. Four CT measurements were performed to obtain datasets at different positions of the X-ray imager. Fine sectional images were obtained successfully, and the spatial resolution was estimated as 80-μm, which corresponds to just under half the pixel size of the imager. In addition, a fine 3D image was also obtained by scanning the imager two-dimensionally.
Authors:
;  [1] ; ;  [2]
  1. Central Research Laboratory, Hitachi Ltd., 2520 Akanuma, Hatoyama, Saitama 350-0395 (Japan)
  2. Kyushu Synchrotron Light Research Center, 8-7, Yayoigaoka, Tosu, Saga 841-0005 (Japan)
Publication Date:
OSTI Identifier:
22412733
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 106; Journal Issue: 8; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; COMPUTERIZED TOMOGRAPHY; IMAGES; KEV RANGE; MONOCHROMATIC RADIATION; PHOTONS; SPATIAL RESOLUTION; SYNCHROTRON RADIATION; TWO-DIMENSIONAL SYSTEMS; X RADIATION