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Proceedings Paper

Scatter profiles of the MIRD phantom with Geant4
Author(s): M. Buğrahan Oktay; Frederic Noo
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Paper Abstract

Scatter is an important source of image artifacts in cone beam computed tomography. In this study, we investigate the complexity of the scatter signal using Monte Carlo simulations with the anthropomorphic MIRD phantom. We assess the differences in scatter intensities for two angular positions of the source at a given bed position. We identified the contribution of single-scatter (coherent and in-coherent) to total-scatter signal as well as the relative contribution multiple scatter events, and we also identified the scatter-to-primary ratio (SPR). Simulations were performed at different monochromatic beam energies ranging from 40 keV to 120 keV.

Paper Details

Date Published: 9 March 2018
PDF: 6 pages
Proc. SPIE 10573, Medical Imaging 2018: Physics of Medical Imaging, 105732Y (9 March 2018); doi: 10.1117/12.2293737
Show Author Affiliations
M. Buğrahan Oktay, The Univ. of Utah (United States)
Frederic Noo, The Univ. of Utah (United States)

Published in SPIE Proceedings Vol. 10573:
Medical Imaging 2018: Physics of Medical Imaging
Joseph Y. Lo; Taly Gilat Schmidt; Guang-Hong Chen, Editor(s)

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