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Proceedings Paper

Practical x-ray scatter measurements for volume CT detector design
Author(s): Timothy R. Fox; David T. Nisius; Hiroshi Aradate; Yasuo Saito
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Paper Abstract

To help design a volume CT scanner, we measured x-ray scatter through large irradiated volumes, with and without detector collimator. An x-ray tube (125 to 150 kV) with an adjustable diaphragm irradiates volumes 25 to 200 mm thick. The scattering objects are water cylinders (approximate diameters 200, 300, and 500 mm). Complementary apertures (between the object and the detector collimator, along a line from the source) select `scatter' or `direct' detector signals. A direct-defining hole in a lead plate mounts over a pilot hole in a thin plastic sheet. With the lead plate removed, a scatter-defining plug fits into the pilot hole to block the same solid angle.

Paper Details

Date Published: 28 June 2001
PDF: 7 pages
Proc. SPIE 4320, Medical Imaging 2001: Physics of Medical Imaging, (28 June 2001); doi: 10.1117/12.430948
Show Author Affiliations
Timothy R. Fox, Bio-Imaging Research, Inc. (United States)
David T. Nisius, Bio-Imaging Research, Inc. (United States)
Hiroshi Aradate, Toshiba Corp. (Japan)
Yasuo Saito, Toshiba Corp. (Japan)

Published in SPIE Proceedings Vol. 4320:
Medical Imaging 2001: Physics of Medical Imaging
Larry E. Antonuk; Martin Joel Yaffe, Editor(s)

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