Design and analysis of a focused mammography imaging system with suppressed background radiation

Kie Bong Nahm; Seong Ki Mun

doi:10.1117/12.237788

11 April 1996 Design and analysis of a focused mammography imaging system with suppressed background radiation

Kie Bong Nahm, Seong Ki Mun

Proceedings Volume 2708, Medical Imaging 1996: Physics of Medical Imaging; (1996) https://doi.org/10.1117/12.237788
Event: Medical Imaging 1996, 1996, Newport Beach, CA, United States

Abstract

A design concept of a mammography system is presented that is expected to reduce the background radiation without the penalty of the increased dosage or time. The monochromatic radiation from Mo target is Bragg reflected from a crystal mirror fabricated as per the Johansson geometry. Radiation then comes to a focus on the opposite side of the source point, and a pinhole located at this focal point will filter out the scattering from the bulk of the breast tissue. The focal spot size should be identical to the target spot size under an ideal circumstance. LiF crystal was assumed for the study, but any crystal with appropriate lattice constant and reflectivity can be adopted, depending on the difficulty of fabrication. Expected technical difficulties are presented and discussed.

Citation Download Citation

Kie Bong Nahm and Seong Ki Mun "Design and analysis of a focused mammography imaging system with suppressed background radiation", Proc. SPIE 2708, Medical Imaging 1996: Physics of Medical Imaging, (11 April 1996); https://doi.org/10.1117/12.237788

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