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Proceedings Paper

In The Field Measurement Of Image Intensifier Tube Contrast: Results, 1981
Author(s): Robert J. Moore
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Paper Abstract

An important parameter in any image intensifier-based fluoroscopic or fluorographic imaging system is the percent contrast (also called the Veiling Glare) of the image intensifier tube itself. A photographic technique for the measurement of this important parameter in-the-field, developed by the author over the last six years, has been used over the past year to survey seventy-five (75) different image intensifier tubes. Results for the percent contrast measurements for this group of image intensifier tubes will be given. Based on these results, a rating system of "low", "low normal", "normal", and "high normal" is established. Different rating schemes are derived for image intensifier tubes installed before 1979 (average percent contrast = 70%) and installed 1979 to 1981 (average percent contrast = 77%). Pitfalls in the application of the photographic technique of image intensifier tube contrast determination, as well as crosschecks on the method, are also discussed.

Paper Details

Date Published: 29 December 1982
PDF: 5 pages
Proc. SPIE 0347, Application of Optical Instrumentation in Medicine X, (29 December 1982); doi: 10.1117/12.933831
Show Author Affiliations
Robert J. Moore, Loma Linda University Medical Center (United States)

Published in SPIE Proceedings Vol. 0347:
Application of Optical Instrumentation in Medicine X
Gary D. Fullerton; James A. Mulvaney; Arthur G. Haus; William S. Properzio, Editor(s)

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