High‐resolution electron microscopy of molecular crystals. II. Image simulation

摘要: Computer-simulated electron-microscope images have been produced for several different aromatic hydrocarbons, as well the organometallic compound chlorinated copper phthalocyanine. Weak-phase-object are compared with full multislice imaging calculations that include resolution-limiting effects of limited spatial and temporal coherence; comparisons indicate a considerable range focus thickness where intuitive image interpretation is possible. This favourable situation arises directly from low atomic numbers atoms comprising molecules almost monotonic fall-off scattering angle those structure factors within resolution limit microscope. The occurrence nature both first- second-order on typical 100 500 kV also discussed.