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Optical Engineering

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

A Rotating Aperture Wheel (RAW) technology is under development which involves replacing a grid for scatter elimination with an assembly of one fore and two aft lead aperture wheels which are rotated to maintain the alignment between the slit or aperture pattern of each. Such a design has the unique feature that its motion can be made independent 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 as to lend itself toward use with varying source-to-image receptor distances (SIDs) such as are involved in fluoroscopy.

Paper Details

Date Published: 1 February 1980
PDF: 7 pages
Opt. Eng. 19(1) 191132 doi: 10.1117/12.7972478
Published in: Optical Engineering Volume 19, Issue 1
Show Author Affiliations
Stephen Rudin, State University of New York at Buffalo (United States)

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