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Proceedings Paper

X-Ray Beam Filtration For Mammography
Author(s): Melvin P. Siedband; Robert J. Jennings; Richard J. Eastgate; David L. Ergun
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Paper Abstract

The characteristic lines of molybdenum-anode x-ray tubes yield high contrast images on film of thin breasts. For thicker breasts, the higher spectral energies are transmitted and the lower energies are mostly absorbed, resulting in higher patient exposure and reduced contrast. However, filters from rhodium (Z=45) to tin (Z=50) can be used to shape the energy distribution of tungsten-anode tubes to improve contrast and reduce patient exposure. Measured spectra and phantom test data are described.

Paper Details

Date Published: 27 December 1977
PDF: 4 pages
Proc. SPIE 0127, Application of Optical Instrumentation in Medicine VI, (27 December 1977); doi: 10.1117/12.955938
Show Author Affiliations
Melvin P. Siedband, University of Wisconsin (United States)
Robert J. Jennings, University of Wisconsin (United States)
Richard J. Eastgate, University of Wisconsin (United States)
David L. Ergun, University of Wisconsin (United States)

Published in SPIE Proceedings Vol. 0127:
Application of Optical Instrumentation in Medicine VI
Joel E. Gray; William R. Hendee, Editor(s)

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