Fournier D, L'Esperance G, Saint-Jacques R G
INRS-Energie, Varennes, Quebec, Canada.
J Electron Microsc Tech. 1989 Oct;13(2):123-49. doi: 10.1002/jemt.1060130205.
This article has been written for experimenters who are beginning to work with convergent beam electron diffraction patterns (CBED). The indexing of the higher-order Laue zone (HOLZ) lines inside the central spot of a CBED pattern is the first step towards studying variations in lattice parameter and three-dimensional (3D) symmetry. To index the HOLZ lines one must construct and index the HOLZ, find its interplanar spacing and the location of its projection on the zero order Laüe zone (ZOLZ) for a given zone axis, and finally find the radius of the HOLZ ring. A computer program has been developed to perform all these tasks for cubic crystals and is very useful, especially when one varies parameters such as operating voltage, zone axis, lattice parameter, and crystalline structure.
本文是为刚开始使用会聚束电子衍射图案（CBED）的实验人员撰写的。对CBED图案中心斑点内高阶劳厄区（HOLZ）线进行指标化是研究晶格参数变化和三维（3D）对称性的第一步。为了对HOLZ线进行指标化，必须构建并指标化HOLZ，找到其晶面间距以及在给定晶带轴下其在零阶劳厄区（ZOLZ）上的投影位置，最后找到HOLZ环的半径。已经开发了一个计算机程序来为立方晶体执行所有这些任务，该程序非常有用，特别是当改变诸如操作电压、晶带轴、晶格参数和晶体结构等参数时。
