%0 Journal Article
%T IMAGING STUDY OF FLAT-FIELD GRATINGS FOR NON-POINT LIGHT SOURCE<br>非点光源情况下平场光栅的成像研究
%A LI YING-JUN
%A YANG JIAN-LUN
%A ZHANG JIE
%A <br>李英骏
%A 杨建伦
%A 张杰
%J 物理学报
%D 2000
%I 
%X Using a ray-tracing code,the imaging process of non-point light sources through a concave grating has been studied.It is demonstrated that under specially designed conditions,a plane spectrum can be formed for non-point light sources.The positions for the plane spectrum have been derived for the sources at different distance from the grating.A criterion has been defined under which the effects of variation of the source-size on the focal plane can be neglected.
%K 非点光源
%K 平均光栅
%K 成像
%K X射线
%K 掠入射平场谱仪
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=65162751629AE39748DFEF1FCD582CEC&yid=9806D0D4EAA9BED3&vid=2A3781E88AB1776F&iid=94C357A881DFC066&sid=AD0A5DE51C29AB9F&eid=65A51D0EBEB846F5&journal_id=1000-3290&journal_name=物理学报&referenced_num=2&reference_num=4