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Proceedings Paper

Stationary digital breast tomosynthesis system with a multi-beam field emission x-ray source array
Author(s): Guang Yang; Ramya Rajaram; Guohua Cao; Shabana Sultana; Zhijun Liu; David Lalush; Jianping Lu; Otto Zhou
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Paper Abstract

A stationary digital breast tomosynthesis (DBT) system using a carbon nanotube based multi-beam field emission x-ray (MBFEX) source has been designed. The purpose is to investigate the feasibility of reducing the total imaging time, simplifying the system design, and potentially improving the image quality comparing to the conventional DBT scanners. The MBFEX source consists of 25 individually programmable x-ray pixels which are evenly angular spaced covering a 48° field of view. The device acquires the projection images by electronically switching on and off the individual x-ray pixels without mechanical motion of either the x-ray source or the detector. The designs of the x-ray source and the imaging system are presented. Some preliminary results are discussed.

Paper Details

Date Published: 18 March 2008
PDF: 10 pages
Proc. SPIE 6913, Medical Imaging 2008: Physics of Medical Imaging, 69131A (18 March 2008); doi: 10.1117/12.770622
Show Author Affiliations
Guang Yang, Univ. of North Carolina at Chapel Hill (United States)
Ramya Rajaram, Univ. of North Carolina at Chapel Hill (United States)
Guohua Cao, Univ. of North Carolina at Chapel Hill (United States)
Shabana Sultana, Univ. of North Carolina at Chapel Hill (United States)
Zhijun Liu, Univ. of North Carolina at Chapel Hill (United States)
David Lalush, Univ. of North Carolina at Chapel Hill (United States)
North Carolina State Univ. (United States)
Jianping Lu, Univ. of North Carolina at Chapel Hill (United States)
Otto Zhou, Univ. of North Carolina at Chapel Hill (United States)


Published in SPIE Proceedings Vol. 6913:
Medical Imaging 2008: Physics of Medical Imaging
Jiang Hsieh; Ehsan Samei, Editor(s)

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