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Selected area electron diffraction

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Selected Area Electron Diffraction

(Science: technique) In this diffraction mode an aperture is used to define the area from which a diffraction pattern is to be recorded from a thin sample. This aperture is typically located in an image plane below the sample.

selected Area electron Diffraction patterns are simple spot patterns and are of use in phase determination (lattice spacing measurement) and defect analysis (sample orientation).

Acronym: SAED