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Picosecond electron diffraction
Applied Physics Letters, 1982A picosecond photoelectron pulse generated by a streak camera has been used to probe a thin film of aluminum producing a diffraction pattern representative of its lattice structure. Because this photoelectron pulse is in picosecond synchronism with the optical pulse, this technique will make possible the investigation of structural phase transitions in
Gerard Mourou, Steve Williamson
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Electron diffraction of membranes
Biophysik, 1971Electron diffraction conducted on myelin membranes, photosynthetic and photoreceptor membranes yielded spot diffraction patterns indicating an ordered state of membranes; the interplanar spacings being of the order of A units. It was observed, too, that a membrane specimen accommodates different space structures. Based on these findings it is suggested
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Electron Diffraction and Convergent Beam Electron Diffraction (CBED)
2017A transmission electron microscope (TEM) is based on diffraction phenomena in specimens and image formation by an electromagnetic lens as a convex lens. For thin specimens and single atoms, we can use “phase object approximation (POA)” and “weak-phase object approximation (WPOA).”
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Convergent Beam Electron Diffraction
1979Convergent beam electron diffraction (CBD) is a technique with a long history of gradual development which has recently become widely available through the development of commercial TEM/STEM electron microscopes. The technique was discovered by KOSSELL and MOLLENSTEDT (1939) who obtained some quite remarkably good results when one realizes that the ...
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1992
Abstract Several classical imaging processes, such as transmission light and electron microscopy, make use of a lens-the objective lens-to gather a fraction of the radiation scattered by the sample. The sample acts as the object of the lens, which, as shown in Figure 6.1, recreates an image of the sample in the image plane of the lens ...
D B Williams, K S Vecchio
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Abstract Several classical imaging processes, such as transmission light and electron microscopy, make use of a lens-the objective lens-to gather a fraction of the radiation scattered by the sample. The sample acts as the object of the lens, which, as shown in Figure 6.1, recreates an image of the sample in the image plane of the lens ...
D B Williams, K S Vecchio
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