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Proceedings Paper

Crosstalk modeling of a CT detector
Author(s): Aziz Ikhlef; Smitha Thrivikraman
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Paper Abstract

In this paper, we present the results and methods used to simulate the x-ray deposition and the light optical transport in x-ray detectors composed of scintillating and photodiodes arrays. Through this work, we have identified the main contributors of crosstalk and validated the model results through experimental measurements. We have assessed and quantified the effects of the reflectors, the pixel geometry and dimensions, the optical coupler between the scintillating material and the silicon photodiodes and optimized the design in order to meet the requirements of detector image quality in computer tomography. We describe some of the methods and techniques used to determine the optical properties of the material components in the simulation.

Paper Details

Date Published: 6 May 2004
PDF: 8 pages
Proc. SPIE 5368, Medical Imaging 2004: Physics of Medical Imaging, (6 May 2004); doi: 10.1117/12.524037
Show Author Affiliations
Aziz Ikhlef, GE Medical Systems (United States)
Smitha Thrivikraman, GE India Technology Ctr. Pvt. Ltd. (India)

Published in SPIE Proceedings Vol. 5368:
Medical Imaging 2004: Physics of Medical Imaging
Martin J. Yaffe; Michael J. Flynn, Editor(s)

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