X-Ray Beam Filtration For Mammography

Melvin P. Siedband; Robert J. Jennings; Richard J. Eastgate; David L. Ergun

doi:10.1117/12.955938

27 December 1977 X-Ray Beam Filtration For Mammography

Melvin P. Siedband, Robert J. Jennings, Richard J. Eastgate, David L. Ergun

Proceedings Volume 0127, Application of Optical Instrumentation in Medicine VI; (1977) https://doi.org/10.1117/12.955938
Event: Application of Optical Instrumentation in Medicine VI, 1977, Boston, United States

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.

Citation Download Citation

Melvin P. Siedband, Robert J. Jennings, Richard J. Eastgate, and David L. Ergun "X-Ray Beam Filtration For Mammography", Proc. SPIE 0127, Application of Optical Instrumentation in Medicine VI, (27 December 1977); https://doi.org/10.1117/12.955938

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