Gazing at crystal balls: Electron backscatter diffraction pattern analysis and cross correlation on the sphere

被引：33
|
作者：
Hielscher, Ralf [1 ]
Bartel, Felix [1 ]
Britton, Thomas Benjamin [2 ]
机构：
[1] Tech Univ Chemnitz, Fak Math, D-09107 Chemnitz, Germany
[2] Imperial Coll London, Dept Mat, London SW7 2AZ, England
来源：
ULTRAMICROSCOPY | 2019年 / 207卷
关键词：
Electron diffraction; Electron microscopy; Geometrical projection; Cross correlation; Crystallography; EBSD; ORIENTATION; SIMULATION;
D O I：
10.1016/j.ultramic.2019.112836
中图分类号：
TH742 [显微镜];
学科分类号：
摘要：
We present spherical analysis of electron backscatter diffraction (EBSD) patterns with two new algorithms: (1) band localisation and band profile analysis using the spherical Radon transform; (2) orientation determination using spherical cross correlation. These new approaches are formally introduced and their accuracies are determined using dynamically simulated patterns. We demonstrate their utility with an experimental dataset obtained from ferritic iron. Our results indicate that the analysis of EBSD patterns on the sphere provides an elegant method of revealing information from these rich sources of crystallographic data.
引用
收藏
页数：11
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