A Nonuniform Detector Aperture for CT

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  R.  M. Henkelman and Bruno  Richard Preiss. Journal of Computer Assisted Tomography , 5(3):401-408, June 1981[9].
The finite width of the X-ray beam determined by the source and detector aperture limits the resolution of computed tomography (CT) images. Improved resolution can be obtained by reducing the width of the detector, but at a cost in dose utilization efficiency. We show that it is possible to improve the resolution of a CT image with a minimum cost in dose efficiency by varying the sensitivity (apodizing) the detector response function. Further, we demonstrate how to construct detectors with nonuniform response by changing the reflective coating on the scintillator. Finally, we show improved calculated point response functions for such modified detectors.

Copyright 1981 by Raven Press, New York.

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Data Structures and Algorithms With Object-Oriented Design Patterns in Java
Data Structures and Algorithms with Object-Oriented Design Patterns in Java (Worldwide Series in Computer Science)
ISBN: 0471346136
EAN: 2147483647
Year: 1999
Pages: 100

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