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Proceedings Paper

A System-Model For High-Precision Evaluation Of Focal Spots
Author(s): Tamas Sandor; Hasbrouck Wright; Bruce Mann; Sven Paulin
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Paper Abstract

A system-model for computer-aided densitometric evaluation of focal spot images of diagnostic x-ray tubes is described. The procedure is almost fully automated. It extracts a specified number of optical density profiles from the focal spat image and computes the area, the base-width and the full width at half maximum for each profile. The Fourier-transform of selected profiles, the isodensity contour diagram and a three-dimensional display of the focal spot image are also rendered. Such complex assessment is recommended primarily for microfocal spots. Since the proposed evaluation requires both costly equipment and sophisticated computer programs, which are beyond the reach of most hospital facilities, it is suggested that an organization should be set up at which the analysis could be done at modest costs.

Paper Details

Date Published: 23 December 1976
PDF: 5 pages
Proc. SPIE 0096, Application of Optical Instrumentation in Medicine V, (23 December 1976); doi: 10.1117/12.965396
Show Author Affiliations
Tamas Sandor, Harvard Medical School (United States)
Hasbrouck Wright, Harvard Medical School (United States)
Bruce Mann, Harvard Medical School (United States)
Sven Paulin, Harvard Medical School (United States)


Published in SPIE Proceedings Vol. 0096:
Application of Optical Instrumentation in Medicine V
Robert K. Cacak; Paul L. Carson; Gregory Dubuque; Joel E. Gray; William R. Hendee; Raymond P. Rossi; Arthur Haus, Editor(s)

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