Τompas: a free and integrated tool for online crystallographic analysis in transmission electron microscopy. Issue 2 (21st February 2020)

• Record Type: Journal Article
• Authors: Xie, Rui-Xun; Zhang, Wen-Zheng
• Is Part Of: Journal of applied crystallography. Volume 53:Issue 2(2020)
• Page Start: 561
• Page End: 568
• Publication Date: 2020-02-21
• Subjects: transmission electron microscopy (TEM) -- Kikuchi patterns -- electron diffraction -- trace analysis; Crystallography -- Periodicals; 548.05
• DOI: 10.1107/S1600576720000801
• Languages: English
• ISSNs: 0021-8898

Abstract

Abstract : τ ompas is a software tool designed to facilitate transmission electron microscopy (TEM) experiments with real‐time simulation of pole figures, Kikuchi patterns and feature projections according to sample holder tilt angles. τ ompas can replace a significant number of crystallographic calculations, making it convenient for performing online crystallographic analysis in conventional TEM. Abstract : τ ompas (TEM online multi‐purpose analyzing system) is a free and integrated software tool designed to perform online crystallographic analysis in transmission electron microscopy (TEM) experiments. By using sample holder tilt angles as input, τ ompas can simultaneously simulate pole figures, Kikuchi patterns and feature projections, providing graphical views of the sample crystallography. These simulations are further employed to navigate sample tilting and to quickly interpret experimental Kikuchi patterns and images by image matching, giving self‐consistent indices of features and crystal orientations. These functions are integrated with mouse operations to improve work efficiency. τ ompas is distributed as a small cross‐platform program that can be installed on a microscope computer to cooperate with other tools.