N-BEAM LATTICE IMAGES .5. USE OF CHARGE-DENSITY APPROXIMATION IN INTERPRETATION OF LATTICE IMAGES
N-BEAM LATTICE IMAGES .5. USE OF CHARGE-DENSITY APPROXIMATION IN INTERPRETATION OF LATTICE IMAGES
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DOI：
10.1107/s0567739475000642
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发表时间：
1975-01-01
期刊：
影响因子：
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通讯作者：
OKEEFE, MA
中科院分区：
文献类型：
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作者：
LYNCH, DF;MOODIE, AF;OKEEFE, MA
将简单的无限孔径电荷密度近似推广到包括有限孔径和物镜球差的影响。使用这些近似计算的图像进行比较，以建立扩展的电荷密度近似的适用性的界限与精确的N-束技术和实验计算的图像。
The simple infinite-aperture charge-density approximation to lattice imaging is extended to include the effects of finite aperture and objective-lens spherical aberration. Images computed using these approximations are compared with images computed by the accurate N-beam technique and with experiment in order to establish the bounds of applicability of the extended-charge-density approximations.