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Proceedings Paper

Development of a dual-energy kinestatic charge detector
Author(s): Robert J. Endorf; Sunil Kulatunga; David C. Spelic; Frank A. DiBianca; Herbert D. Zeman
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Paper Abstract

A design for a dual-energy Kinestatic Charge Detector (KCD) with segmented charge collection fingers is discussed. The front segment of the KCD charge collectors will produce a digital low-energy image and the back segments will produce a digital high-energy image. A gap between the front and back collectors acts as a mid filter to increase the separation between the mean energies absorbed in the front and back segments. This dual-energy KCD design was optimized by using computer simulations to maximize a figure of merit defined as the square of the signal-to-noise ratio divided by the average absorbed dose. The optimal KCD parameters are presented for a dual-energy KCD designed for mammography. Preliminary experimental data are given for a small non imaging dual-energy KCD research detector.

Paper Details

Date Published: 14 September 1993
PDF: 12 pages
Proc. SPIE 1896, Medical Imaging 1993: Physics of Medical Imaging, (14 September 1993); doi: 10.1117/12.154590
Show Author Affiliations
Robert J. Endorf, Univ. of Cincinnati (United States)
Sunil Kulatunga, Univ. of Cincinnati (United States)
David C. Spelic, Univ. of Cincinnati (United States)
Frank A. DiBianca, Univ. of Tennessee/Memphis (United States)
Herbert D. Zeman, Univ. of Tennessee/Memphis (United States)

Published in SPIE Proceedings Vol. 1896:
Medical Imaging 1993: Physics of Medical Imaging
Rodney Shaw, Editor(s)

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