Development of a dual-energy kinestatic charge detector

Robert J. Endorf; Sunil Kulatunga; David C. Spelic; Frank A. DiBianca; Herbert D. Zeman

doi:10.1117/12.154590

14 September 1993 Development of a dual-energy kinestatic charge detector

Robert J. Endorf, Sunil Kulatunga, David C. Spelic, Frank A. DiBianca, Herbert D. Zeman

Proceedings Volume 1896, Medical Imaging 1993: Physics of Medical Imaging; (1993) https://doi.org/10.1117/12.154590
Event: Medical Imaging 1993, 1993, Newport Beach, CA, United States

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.

Citation Download Citation

Robert J. Endorf, Sunil Kulatunga, David C. Spelic, Frank A. DiBianca, and Herbert D. Zeman "Development of a dual-energy kinestatic charge detector", Proc. SPIE 1896, Medical Imaging 1993: Physics of Medical Imaging, (14 September 1993); https://doi.org/10.1117/12.154590

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