Influence of tube voltage and current on in-line phase contrast imaging using a microfocus x-ray source |
| |
| Authors: | Li Chen Li Zheng Yu Ai-Min and Li Cheng-Quan |
| |
| Affiliation: | Department of Engineering Physics, Tsinghua University, Beijing 100084, China |
| |
| Abstract: | 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. |
| |
| Keywords: | x-ray in-line phase contrast
imaging Wigner distribution |
| 本文献已被 维普 等数据库收录！ |
| 点击此处可从《中国物理 B》浏览原始摘要信息 |
|
点击此处可从《中国物理 B》下载免费的PDF全文 |
