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Proceedings Paper

Fore-And-Aft Rotating Aperture Wheel (RAW) Device For Improving Radiographic Contrast
Author(s): Stephen Rudin
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Paper Abstract

A Rotating Aperature Wheel (RAW) technology is under development which involves replacing a grid for scatter elimination with an assembly of one fore and two aft lead aperature wheels which are rotated so as to maintain the alignment between the slit or aperature pattern of each. Such a design has the unique feature that its motion can be made indepen-dent of the x-ray exposure time and duration allowing for the first time the practical use of a moving slit anti-scatter technique in rapid sequence and dynamic radiographic procedures. The technology is flexible so as to lend itself toward use with varying source to image receptor distances such as is involved in fluoroscopy.

Paper Details

Date Published: 6 July 1979
PDF: 10 pages
Proc. SPIE 0173, Application of Optical Instrumentation in Medicine VII, (6 July 1979); doi: 10.1117/12.957130
Show Author Affiliations
Stephen Rudin, State University of New York at Buffalo (United States)

Published in SPIE Proceedings Vol. 0173:
Application of Optical Instrumentation in Medicine VII
Joel E. Gray, Editor(s)

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