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Proceedings Paper

Comparison Of Temporal Resolution Of A Kinestatic Charge Detector With That Of A Rare-Earth Phosphor Screen
Author(s): Frank A. DiBianca; Charles R. Tenney; Mark S. C. Reed; Joseph E. Vance; Douglas J. Wagenaar; Donald Wilson
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Paper Abstract

Previous studies [1-3] of the capabilities of a digital radiographic imager employing a scanning strip (slot) beam and a Kinestatic Charge Detector (KCD) have focussed on spatial and contrast resolution. This paper compares the temporal resolution of such a KCD system with that of a system employing a wide area beam and a rare-earth phosphor. The results are largely based on theoretical and computer simulations, including use of a Monte Carlo x-ray transport program, and indicate that for equal image SNR, the KCD yields significantly improved temporal resolution and lower doses than the rare-earth screen system. However, the KCD suffers from tube loading problems and long scan times for patient thicknesses approaching the equivalent of 30 cm of water.

Paper Details

Date Published: 1 May 1989
PDF: 9 pages
Proc. SPIE 1090, Medical Imaging III: Image Formation, (1 May 1989); doi: 10.1117/12.953228
Show Author Affiliations
Frank A. DiBianca, University of North Carolina School of Medicine (United States)
Charles R. Tenney, University of North Carolina School of Medicine (United States)
Mark S. C. Reed, University of North Carolina School of Medicine (United States)
Joseph E. Vance, University of North Carolina School of Medicine (United States)
Douglas J. Wagenaar, University of North Carolina School of Medicine (United States)
Donald Wilson, University of North Carolina School of Medicine (United States)


Published in SPIE Proceedings Vol. 1090:
Medical Imaging III: Image Formation
Samuel J. Dwyer; R. Gilbert Jost; Roger H. Schneider, Editor(s)

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