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Fore-and-aft rotating aperture wheel (RAW) device for improving radiographic contrast

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6 Scopus citations

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 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 so as to lend itself toward use with varying source to image receptor distances such as is involved in fluoroscopy.

Original languageEnglish
Pages (from-to)98-107
Number of pages10
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume173
DOIs
StatePublished - Jul 6 1979

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