Influence of tube voltage and current on in-line phase contrast imaging using a microfocus x-ray source

被引：8

作者：

Department of Engineering Physics, Tsinghua University, Beijing 100084, China ^{[1
]}

机构：

[1] Department of Engineering Physics, Tsinghua University

来源：

Chin. Phys. | 2007年 / 8卷 / 2319-2324期

关键词：

In-line phase contrast imaging; Wigner distribution; X-ray;

D O I：

10.1088/1009-1963/16/8/027

中图分类号：

学科分类号：

摘要：

In-line x-ray phase contrast imaging has attracted much attention due to two major advantages: its effectiveness in imaging weakly absorbing materials, and the simplicity of its facilities. In this paper a comprehensive theory based on Wigner distribution developed by Wu and Liu [Med. Phys. 31 2378-2384 (2004)] is reviewed. The influence of x-ray source and detector on the image is discussed. Experiments using a microfocus x-ray source and a CCD detector are conducted, which show the role of two key factors on imaging: the tube voltage and tube current. High tube current and moderate tube voltage are suggested for imaging. © 2007 Chin. Phys. Soc. and IOP Publishing Ltd.

引用

页码：2319 / 2324

页数：5

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