%0 Journal Article
%T A NEW METHOD FOR SIMULATING HIGH RESOLUTION ELECTRON MICROSCOPE IMAGES FROM NON-PERIODIC OBJECTS<br>一种适用于非周期结构高分辨象模拟计算的新方法
%A WANG YUAN-MING
%A HU TIAN-BAO
%A CHEN JIANG-HUA
%A ZENG XIAO-BIAO
%A <br>王元明
%A 胡天宝
%A 陈江华
%A 曾晓彪
%J 物理学报
%D 1990
%I 
%X It is shown that the dynamical diffraction calculation using periodic extension of the sampling boundary points leads to serious and artificial errors in the High Resolution Electron Microscope (HREM) image simulation for a non-periodic object in FFT Multi-Slice (FFTMS) method which is now routinely used for the simulation of HREM images from periodic objects.In a systematic study of the problem of induced numerical artifacts, a new method has been proposed for the HREM image simulation of non-periodic objects. It is based on some improvements in the calculation of the phase grating and the propagation operator to the Real Space Multi-Slice (RSMS) method, which are compatible with a non-periodic object.It can be seen from the comparison with the experimental HREM images that much more better agreement can be obtained by using Real Space Multi-Slice method for Non-periodic objects (RSMSN).
%K 非周期结构
%K 高分辨
%K 象模拟
%K 计算
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=0DCBFECC13B11FD7E8A7D4EE1EC25D44&yid=8D39DA2CB9F38FD0&vid=7C3A4C1EE6A45749&iid=9CF7A0430CBB2DFD&sid=7B26CB38602C6F44&eid=0FA5E3FF9DF9A6BA&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=1