4/3/2023 0 Comments Tem saed pattern analysisAutocorrelation and digital filter method were implanted in it to yield a high-quality Fourier transform diffractogram from an HRTEM image, Gaussian filter and Gaussian fitting were applied to locate diffraction spots with sub-pixel accuracy. The program was written as a package of DigitalMicrograph, a very popular software to record and analyze the data of transmission electron microscopes (TEM). For the need of the daily-used diffraction analysis, we present a new processing & analysis package for electron diffraction pattern, ElectronDiffraction tools. But for the lack of analysis tools, most of the people usually manually measure the diffraction spots to index the diffraction pattern or measure a few lattice planes (fringes in HRTEM or diffraction rings) to perform phase analysis. Three traditional methods of electron diffraction analysis are pattern indexing, phase identification, and unit cell determination. Microstructure analysis based on the electron diffraction patterns (ED or SAED) or high-resolution transmission electron microscopy images (HRTEM) has become a major technique for the local structural characterization of materials.
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