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24 October 1997 X-ray microtomography as a fast three-dimensional imaging technology using a CCD camera coupled with a CdWO4 single-crystal scintillator
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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.
© (1997) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Heung-Rae Lee, Barry P. Lai, Wenbing Yun, Derrick C. Mancini, and Zhonghou Cai "X-ray microtomography as a fast three-dimensional imaging technology using a CCD camera coupled with a CdWO4 single-crystal scintillator", Proc. SPIE 3149, Developments in X-Ray Tomography, (24 October 1997); https://doi.org/10.1117/12.279361
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