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Detailed Analysis of Scatter Contribution from Different Simulated Geometries of X-ray Detectors.

Marimón, E., Nait-Charif, H., Khan, A., Marsden, P.A. and Diaz, O., 2016. Detailed Analysis of Scatter Contribution from Different Simulated Geometries of X-ray Detectors. In: IWDM 2016: International Workshop on Breast Imaging, Malmö, Sweden, 19-22 June 2016, 203 - 210.

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Official URL: https://doi.org/10.1007/978-3-319-41546-8

Abstract

Scattering is one of the main issues left in planar mammography examinations, as it degrades the quality of the image and complicates the diagnostic process. Although widely used, anti-scatter grids have been found to be inefficient, increasing the dose delivered, the equipment price and not eliminating all the scattered radiation. Alternative scattering reduction methods, based on postprocessing algorithms using Monte Carlo (MC) simulations, are being developed to substitute anti-scatter grids. Idealized detectors are commonly used in the simulations for the purpose of simplification. In this study, the scatter distribution of three detector geometries is analyzed and compared: Case 1 makes use of idealized detector geometry, Case 2 uses a scintillator plate and Case 3 uses a more realistic detector simulation, based on the structure of an indirect mammography X-ray detector. This paper demonstrates that common configuration simplifications may introduce up to 14% of underestimation of the scatter in simulation results.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Digital mammography, scatter, post-processing, Monte Carlo, X-ray detector
Group:Faculty of Science & Technology
ID Code:33567
Deposited By: Unnamed user with email symplectic@symplectic
Deposited On:03 Mar 2020 13:53
Last Modified:03 Mar 2020 13:53

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