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Computational and Mathematical Methods in Medicine
Volume 2013, Article ID 391212, 6 pages
http://dx.doi.org/10.1155/2013/391212
Research Article

A Novel CT Imaging System with Adjacent Double X-Ray Sources

Key Laboratory of Health Informatics, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, 1068 Xueyuan Avenue, Shenzhen 518055, China

Received 28 June 2013; Revised 14 September 2013; Accepted 19 October 2013

Academic Editor: Tianye Niu

Copyright © 2013 Mou An and Yaoqin Xie. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Current computed tomography (CT) scanners rotate fast to reduce motion artifact. X-ray tube must work in a high power to make the image clear under short exposure time. However, the life span of such a tube may be shortened. In this paper, we propose a novel double sources CT imaging system, which puts two of the same X-ray sources closely with each other. The system is different from current dual source CT with orthogonal X-ray sources. In our system, each projection is taken twice by these two sources to enhance the exposure value and then recovered to a single source projection for image reconstruction. The proposed system can work like normal single source CT system, while halving down the working power for each tube.