俗艳 发表于 2025-3-30 12:15:33
Dynamic Inelastic Electron Scattering III: Multislice Theorynon scattered electrons in STEM and TEM. Finally, we present a real space multislice theory which is more convenient for calculating the images and diffraction patterns of TDS electrons. The exact theory based on the real space multislice approach for simulating the composition sensitive image using diffusely scattered electrons is also outlined.Cardioversion 发表于 2025-3-30 16:02:25
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Basic Kinematic Electron Diffractionthe late 1920s. The TEM was originally based on the physical principle that charged particles can be focused by magnetic lenses. The strong interaction of incident electrons with electrons and nuclei in crystals makes it feasible to analyze structures of solids based on electron micrographs. The rapovation 发表于 2025-3-30 21:30:55
Dynamic Elastic Electron Scattering I: Bloch Wave Theorysuch as the positions of Bragg beams, can be precisely determined by the kinematic theory. The intensity of each reflection, however, is largely affected by multiple scattering effects among existing beams, because the interaction between the electron and the crystal is so strong that multiple-scattNeuralgia 发表于 2025-3-31 02:21:54
Dynamic Elastic Electron Scattering II: Multislice Theoryfects or the image resolution is so low that the column approximation holds. When the image resolution approaches the atomic level, the dominant contrast mechanism is phase contrast, and the effect of diffraction contrast is minimized. In this case, it is more convenient to apply the multislice theoImmunotherapy 发表于 2025-3-31 07:42:20
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Dynamic Inelastic Electron Scattering I: Bloch Wave Theorycal work is to solve these coupled equations for the process of interest. In Chapter 8 we first discuss the Bloch wave approach for single inelastic-scattering processes. Then the theory is extended to cases where double inelastic-scattering is appreciable. The equations derived can be applied to in错 发表于 2025-3-31 22:39:39
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