29 December 1982 Scatter Field Influence On X-Ray Grid Characterization
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Proceedings Volume 0347, Application of Optical Instrumentation in Medicine X; (1982) https://doi.org/10.1117/12.933828
Event: Application of Optical Instrumentation in Medicine X, 1982, New Orleans, United States
Abstract
We have been studying the performance of x-ray grids both experimentally and theoretically. Grid performance depends not only on its inherent design, but also on characteristics of the scatter field, air gaps from scatterer to grid and to the detector and photon energy. In this paper we have evaluated the theoretical performance of x-ray grids for a variety of scatter fields where edge effects due to the finite size of the scatterer are taken into account, as well as photon energies and air gaps. Scatter field definition is based on our own experimental measurements, as well as the Monte-Carlo calculations of Doi, et al. The results of this work permit a calculation from first principles of such well-known grid characterization as: Bucky factor, Selectivity and Contrast improvement factor. The dependence of these characterizations on the scatterer, air gaps, etc. can be determined from the calculation.
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H. Bernstein, H. Bernstein, E. P. Muntz, E. P. Muntz, } "Scatter Field Influence On X-Ray Grid Characterization", Proc. SPIE 0347, Application of Optical Instrumentation in Medicine X, (29 December 1982); doi: 10.1117/12.933828; https://doi.org/10.1117/12.933828
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