A fast reciprocal space method for image simulation

被引：1
|
作者：
Cai, Canying [1 ,2 ]
Zeng, Songjun [1 ,2 ]
Liu, Hongrong [1 ,2 ]
Van Dyck, Dirk [3 ]
Yang, Qibin [1 ,2 ]
机构：
[1] Xiangtan Univ, Inst Modern Phys, Xiangtan 411105, Hunan, Peoples R China
[2] Xiangtan Univ, Minist Educ, Key Lab Low Dimens Mat & Applicat Technol, Xiangtan 411105, Hunan, Peoples R China
[3] Univ Antwerp, Dept Phys, B-2020 Antwerp, Belgium
来源：
ULTRAMICROSCOPY | 2008年 / 108卷 / 12期
关键词：
Image simulation; Electron crystallography; Scattering matrix; Reciprocal space method;
D O I：
10.1016/j.ultramic.2008.04.003
中图分类号：
TH742 [显微镜];
学科分类号：
摘要：
In this paper, we introduce a fast reciprocal space method for image simulation. It is well known that the scattering matrix (SM) P with N x N elements consists of N different structure factors and N different excitation errors. However, most structure factors of the SM P are extremely small so that they can be neglected. Therefore, the size of the SM P is reduced drastically. On the other hand, the structure factors have two-dimensional space group symmetries, so that by reducing the symmetry related structure factors to symmetrically independent structure factors, the size of the SM P can be reduced further. The calculation speed based on the simplified SM P will be several hundred times faster than that by other conventional methods. In this paper, we describe the method for how to reduce the SM P in detail and give an example of implementation. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：1514 / 1519
页数：6
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