title: High spatial resolution CT with a synchrotron radiation system.
abstract: OBJECTIVE
  We describe a monochromatic X-ray CT system using synchrotron radiation, which has been constructed employing a vertical wiggler beam line at the National Laboratory for High-Energy Physics in Tsukuba, Japan. This CT system was produced to facilitate examination of the microstructures of material and biological specimens.
  
  
  METHODS
  The system provides excellent contrast and has a spatial resolution capacity ranging from 2 to 100 mm. In this preliminary experiment, the images of the rat were obtained at 36-mm slice thickness and 33.2-keV X-ray energy.
  
  
  RESULTS
  The nasal cartilage, skull, and teeth of a live rat were clearly demonstrated with 36-mm spatial resolution.
  
  
  CONCLUSIONS
  Using a monochromatic X-ray CT system with synchrotron radiation, detailed structures of rat skull were imaged clearly.
authors.affiliation: Institute of Clinical Medicine, University of Tsukuba, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Takeda
authors.forename: Y
authors.initials: Y
authors.lastname: Itai
authors.forename: K
authors.initials: K
authors.lastname: Hayashi
authors.forename: Y
authors.initials: Y
authors.lastname: Nagata
authors.forename: H
authors.initials: H
authors.lastname: Yamaji
authors.forename: K
authors.initials: K
authors.lastname: Hyodo
mesh_terms: D000818:Animals; D002356:Cartilage / Q000000981:diagnostic imaging; D009666:Nose / Q000000981:diagnostic imaging; D051381:Rats; D017356:Synchrotrons; D014057:Tomography, X-Ray Computed / Q000379:methods*; D014070:Tooth / Q000000981:diagnostic imaging