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Proceedings Paper

Noise Properties Of A Kinestatic Charge Detector
Author(s): Frank A. DiBianca; Joseph E. Vance; Douglas J. Wagenaar; Joan E. Fetter; Charles R. Tenney; Benjamin M. W. Tsui; Mark S. Reed; David L. McDaniel; Paul Granfors
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Paper Abstract

Recent breakthroughs in electronic detector technology have allowed digital radiographic images to become competitive with, or superior to, those produced with classical film-screen techniques. A summary of these technologies is given in ref. 1. Our group is involved in the research and development of a recently proposed imaging technology (2,3) based on the kinestatic charge detector (KCD). The modulation transfer function (MTF) of the KCD technique has been discussed in refs. 1 and 4. The low frequency detective quantum efficiency (DO(0)) of several KCD designs has been modeled and a value of approximately 0.75 is expected for future detectors (1,5). In this paper, the noise power spectrum (NPS) and the frequency-dependent DOE (MEM) are discussed. Noise contributions from x-ray quanta (random and structured) and data acquisition electronics are considered and preliminary experimental results are given for a recently installed imaging detector. A brief comparison is made of our theoretical and experimental results with published results for film-screen radiography.

Paper Details

Date Published: 27 June 1988
PDF: 7 pages
Proc. SPIE 0914, Medical Imaging II, (27 June 1988); doi: 10.1117/12.968635
Show Author Affiliations
Frank A. DiBianca, University of North Carolina (United States)
Joseph E. Vance, University of North Carolina (United States)
Douglas J. Wagenaar, University of North Carolina (United States)
Joan E. Fetter, University of North Carolina (United States)
Charles R. Tenney, University of North Carolina (United States)
Benjamin M. W. Tsui, University of North Carolina (United States)
Mark S. Reed, University of North Carolina (United States)
David L. McDaniel, General Electric Medical Systems Group (United States)
Paul Granfors, General Electric Medical Systems Group (United States)


Published in SPIE Proceedings Vol. 0914:
Medical Imaging II
Samuel J. Dwyer; Roger H. Schneider; Roger H. Schneider; Samuel J. Dwyer; Samuel J. Dwyer; Roger H. Schneider, Editor(s)

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