透射电镜电子衍射谱的自动识别与计算

Automatic identification and computer of SAD of transmission electronic microscope

透射电镜电子衍射谱的分析和标定是测定微区晶体点阵结构的重要方法,但该工作长期以来一直处于手工操作阶段,测量周期长,误差较大本文探讨了一种利用计算机辅助处理电子衍射谱图象的技术,可以对大部分衍射谱进行实时处理,测量时间短,误差小采用扫描仪获取图象,由计算机自动识别衍射斑点并快速计算矢量R1,R2,R3和﹄,为电子衍射谱的计算提供了一种新的模式同时本系统内含衍射谱标定软件,可以在晶体结构未知的情况下测定衍射斑点位向。

With the development of computer technology,there is a ten dency of computer aided analysis for all kinds of instruments.A certain system to determine the unknown crystal structure automatically using SAEDP on computers.It can be used as the attachment of the electronic microscope to promote the efficiency.