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Proceedings Paper

X-ray microtomography as a fast three-dimensional imaging technology using a CCD camera coupled with a CdWO4 single-crystal scintillator
Author(s): Heung-Rae Lee; Barry P. Lai; Wenbing Yun; Derrick C. Mancini; Zhonghou Cai
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Paper Abstract

A high spatial-resolution transmission x-ray tomographic microscope (XTM) has been developed as a 3D visualization technique at the Advanced Proton Source at Argonne National Laboratory. Using brilliant synchrotron radiation, the XTM can collect a complete set of 2D data for a 3D reconstruction within a fairly short time. The 2D transmission data were taken with a cryogenically cooled CCD camera coupled with an optical microscope with 32x magnification and a single cadmium tungstate crystal screen with a thickness of approximately 60 micrometers . For experiments performed with 20 keV x-ray energy on gold specimens, the XTM produced 2D transmission data with a resolutions of approximately 1 micrometers . A series of 90 projections taken over a range of 180 degree projection angle was taken within a half hour. The reconstruction, with support of a filtered back-projection algorithm, demonstrates the ability of the XTM to provide fast 3D structural information about a specimen from 2D projection data with approximately 1 micrometers resolution and more than 15 percent local image contrast.

Paper Details

Date Published: 24 October 1997
PDF: 8 pages
Proc. SPIE 3149, Developments in X-Ray Tomography, (24 October 1997); doi: 10.1117/12.279361
Show Author Affiliations
Heung-Rae Lee, Argonne National Lab. (United States)
Barry P. Lai, Argonne National Lab. (United States)
Wenbing Yun, Argonne National Lab. (United States)
Derrick C. Mancini, Argonne National Lab. (United States)
Zhonghou Cai, Argonne National Lab. (United States)

Published in SPIE Proceedings Vol. 3149:
Developments in X-Ray Tomography
Ulrich Bonse, Editor(s)

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