%0 Journal Article
%T Study on the methods for diffraction-enhanced imaging with two crystals<br>两块晶体衍射增强成像方法研究
%A Zhu Pei-Ping
%A Wang Jun-Yue
%A Yuan Qing-Xi
%A Tian Yu-Lian
%A Huang Wan-Xi
%A Li Gang
%A Hu Tian-Dou
%A Jiang Xiao-Ming
%A Wu Zi-Yu
%A <br>朱佩平
%A 王寯越
%A 袁清习
%A 田玉莲
%A 黄万霞
%A 黎刚
%A 胡天斗
%A 姜晓明
%A 吴自玉
%J 物理学报
%D 2005
%I 
%X Diffraction_enhanced imaging by using two crystals has been recently developed i n x_ray topogrphy station in Beijing Synchrotron Radiation Facility. In this art icle the analysis for the influence of the thermal expansion of the first crysta l on the diffraction enhanced imaging is presented. The conclusion is that the i nfluence of the thermal expansion of the first crystal can be avoided and much b etter images can be obtained when the axes of crystals are placed vertically to the polarization plane of the synchrotron radiation. The experimental results co nfirmed this analysis.
%K phase contrast imaging
%K synchrotron radiation
%K crystal diffraction<br>相位衬度成像，
%K 同步辐射，
%K 晶体衍射
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=C257ADCD6C51EBD7&yid=2DD7160C83D0ACED&vid=318E4CC20AED4940&iid=CA4FD0336C81A37A&sid=9FFCC7AF50CAEBF7&eid=E84BBBDDD74F497C&journal_id=1000-3290&journal_name=物理学报&referenced_num=7&reference_num=14