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Scanning multiple slit assembly: a practical and efficient device to reduce scatter.

G T Barnes·I A Brezovich·D M Witten
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Abstract

A scanning multiple slit assembly consisting of an array of long narrow beam-defining slits coupled with scatter-eliminating slots beneath the patient is a feasible, practical, and efficient method of reducing scatter and increasing contrast and image quality in diagnostic radiology. Measurements of the ratio of scattered-to-primary radiation transmitted by a scanning multiple slit assembly and a conventional high ratio grid under similar conditions showed the relative intensity of scatter transmitted by the slit assembly to be only one-third that of the grid. A noticeable improvement in contrast was obtained using the slit assembly, without increase in patient exposure. The design, construction, and clinical implications of such a scatter-eliminating technique are discussed.

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HumansRadiographyScattering, RadiationJournal ArticleResearch Support, U.S. Gov't, P.H.S.

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G T Barnes, I A Brezovich, D M Witten. 1977. Scanning multiple slit assembly: a practical and efficient device to reduce scatter.. https://doi.org/10.2214/ajr.129.3.497

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