Simulation of scanning transmission electron microscope images on desktop computers

被引:72
作者
Dwyer, C. [1 ]
机构
[1] Monash Univ, Monash Ctr Elect Microscopy, Dept Mat Engn, Clayton, Vic 3800, Australia
关键词
STEM; Image simulation; Multislice; PRACTICAL APPROACH; MULTISLICE; SCATTERING; CONTRAST;
D O I
10.1016/j.ultramic.2009.11.009
中图分类号
TH742 [显微镜];
学科分类号
摘要
Two independent strategies are presented for reducing the computation time of multislice simulations of scanning transmission electron microscope (STEM) images: (1) optimal probe sampling, and (2) the use of desktop graphics processing units. The first strategy is applicable to STEM images generated by elastic and/or inelastic scattering, and requires minimal effort for its implementation. Used together, these two strategies can reduce typical computation times from days to hours, allowing practical simulation of STEM images of general atomic structures on a desktop computer. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:195 / 198
页数:4
相关论文
共 29 条
[1]   Lattice-resolution contrast from a focused coherent electron probe. Part I [J].
Allen, LJ ;
Findlay, SD ;
Oxley, MP ;
Rossouw, CJ .
ULTRAMICROSCOPY, 2003, 96 (01) :47-63
[2]   An approach to quantitative compositional profiling at near-atomic resolution using high-angle annular dark field imaging [J].
Anderson, SC ;
Birkeland, CR ;
Anstis, GR ;
Cockayne, DJH .
ULTRAMICROSCOPY, 1997, 69 (02) :83-103
[3]  
[Anonymous], 1964, RELATIVISTIC QUANTUM
[4]   Atomic-resolution quantitative composition analysis using scanning transmission electron microscopy Z-contrast experiments [J].
Carlino, E ;
Grillo, V .
PHYSICAL REVIEW B, 2005, 71 (23)
[5]  
Carlino E, 2008, SPRINGER PROC PHYS, V120, P177
[6]   Multislice theory of fast electron scattering incorporating atomic inner-shell ionization [J].
Dwyer, C .
ULTRAMICROSCOPY, 2005, 104 (02) :141-151
[7]   Relativistic effects in atomic inner-shell ionization by a focused electron probe [J].
Dwyer, C .
PHYSICAL REVIEW B, 2005, 72 (14)
[8]   Multiple elastic scattering of core-loss electrons in atomic resolution imaging [J].
Dwyer, C. ;
Findlay, S. D. ;
Allen, L. J. .
PHYSICAL REVIEW B, 2008, 77 (18)
[9]   Method to measure spatial coherence of subangstrom electron beams [J].
Dwyer, Christian ;
Erni, Rolf ;
Etheridge, Joanne .
APPLIED PHYSICS LETTERS, 2008, 93 (02)
[10]  
*FFTW LIB, 2009, FFTW LIB VERS 3 REF