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Proceedings Paper

Computer simulation on scatter-removing characteristics by grid
Author(s): Nobuyuki Nakamori; Takanori Tsunoo; Atsushi Takigawa; Hitoshi Kanamori
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Paper Abstract

Monte Carlo methods have been used to evaluate the performance of x-ray grids in radiography, quantitatively. To correspond with practical arrangements in radiography, the simulations have been done in the condition of the polyenergetic cone-beam geometry and the focused grid. The scatter intensities relative to the primary intensities were calculated for various values of object thickness, field size, tube voltage, and grid ratio. The Bucky factor, contrast improvement factor, and selectivity were used for comparison of the performance of the grid. The results of the calculations are in good agreement with the limited experimental data available. This calculation result is useful for the development of optimal antiscatter grids and selection of the suitable grid in radiographic procedures.

Paper Details

Date Published: 11 April 1996
PDF: 9 pages
Proc. SPIE 2708, Medical Imaging 1996: Physics of Medical Imaging, (11 April 1996); doi: 10.1117/12.237824
Show Author Affiliations
Nobuyuki Nakamori, Kyoto Institute of Technology (Japan)
Takanori Tsunoo, Kyoto Institute of Technology (Japan)
Atsushi Takigawa, Hiroshima Prefectural College of Health and Welfare (Japan)
Hitoshi Kanamori, Kyoto Institute of Technology (Japan)


Published in SPIE Proceedings Vol. 2708:
Medical Imaging 1996: Physics of Medical Imaging
Richard L. Van Metter; Jacob Beutel, Editor(s)

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