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Radiology, Vol 124, 511-513, Copyright © 1977 by Radiological Society of North America

ARTICLES

Determination of X-ray spectra incident on and transmitted through breast tissue

AG Haus, CE Metz, K Doi and J Bernstein

X-ray spectra incident on and transmitted through breast tissue were measured using a fresh whole excised breast. These spectra and corresponding radiographs show that hardening of the beam from a molybdenum-anoda x-ray tube by a 0.5-mm AI filter instead of the conventional 0.03-mm Mo filter allows shorter exposure times and reduces patient exposure. Acceptable image contrast is preserved in mammography of thick or dense breasts.




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Copyright © 1977 by the Radiological Society of North America.