Hostname: page-component-586b7cd67f-gb8f7 Total loading time: 0 Render date: 2024-11-24T09:04:49.187Z Has data issue: false hasContentIssue false
  • English
  • Français

Experimental System for X-ray Cone-Beam Microtomography

Published online by Cambridge University Press:  28 July 2005

Shanjen Pan ,
Wenshan Liou ,
Ang Shih ,
Mun-Soo Park ,
Ge Wang ,
Sterling P. Newberry ,
Hyogun Kim ,
Doug M. Shinozaki  and
Ping-Chin Cheng
Shanjen Pan
Affiliation:
Advanced Microscopy and Imaging Laboratory, Department of Electrical and Computer Engineering, State University of New York, Buffalo, NY 14260
Wenshan Liou
Affiliation:
Advanced Microscopy and Imaging Laboratory, Department of Electrical and Computer Engineering, State University of New York, Buffalo, NY 14260
Ang Shih
Affiliation:
Advanced Microscopy and Imaging Laboratory, Department of Electrical and Computer Engineering, State University of New York, Buffalo, NY 14260
Mun-Soo Park
Affiliation:
Advanced Microscopy and Imaging Laboratory, Department of Electrical and Computer Engineering, State University of New York, Buffalo, NY 14260
Ge Wang
Affiliation:
Department of Radiology, University of Iowa, Iowa City, IA 52242
Sterling P. Newberry
Affiliation:
CBI Labs, Box 11, S. Wescott Road, Schenectady, NY 12306
Hyogun Kim
Affiliation:
Department of Material Sciences and Engineering, Kwangju Institute of Science and Technology, Kwangju, Republic of Korea
Doug M. Shinozaki
Affiliation:
Department of Mechanical and Materials Engineering, University of Western Ontario, London, Ontario, N6A 5B7, Canada
Ping-Chin Cheng
Affiliation:
Advanced Microscopy and Imaging Laboratory, Department of Electrical and Computer Engineering, State University of New York, Buffalo, NY 14260
Get access

Abstract

A laboratory test of X-ray tomography employing a diverging beam of X-rays rather than the usual parallel X-ray beam is described. We chose to test and demonstrate the advantages of divergent beam tomography by imaging an extracted juvenile human premolar using an ordinary dental X-ray source and a cooled CCD camera. Experiments with a three-piece cover-glass sample and with the human tooth demonstrated that three-dimensional reconstruction can be achieved at 34 μm per pixel resolution employing an X-ray tube spot 800 μm in its smallest direction without requiring close contact with the fluorescent screen. Reconstruction of a 256 x 256 pixel single-plane image from 100 projection images took only 45 sec on a personal computer with a Pentium 166 MHz processor. We have also demonstrated a volume reconstruction of 256 x 256 x 256 voxels from the data. Successful extension of this work to submicrometer projection X-ray microscopy is predicted. Improved resolution of medical tomography is another possible application.

Keywords

X-raycone-beamtomographymicrotomographyshadow projection X-ray microscopy
Type
Research Article
Information
Microscopy and Microanalysis , Volume 4 , Issue 1 , February 1998 , pp. 56 - 62
Copyright
© 2005 Microscopy Society of America

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)