Results 331 to 340 of about 4,274,938 (365)

Fundamentals of electron diffraction

1967
The diffraction of electrons is possible because of their wave-mechanical behaviour and their conformity to the relationship $$\lambda = \tfrac{h}{{mv}}$$ where λ is the wavelength of the electrons, h Planck’s constant and mv the momentum of the particle.
K. W. Andrews, S. R. Keown, D. J. Dyson
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Diffraction of Electrons in Graphite

Nature, 1949
Graphite is made up of plane layers of carbon atoms placed at the corners of regular hexagons. Lipson and Stokes1 have shown by means of powder X-ray analysis that in most of the crystals the successive layers have the position...ababa..., although about 15 per cent show the arrangement...abcabcabc... (Fig. 1).
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Bicrystallography and electron diffraction

Proceedings, annual meeting, Electron Microscopy Society of America, 1993
Traditionally grain (or phase) boundaries have been modelled using coincidence site lattice (CLS)-type geometrical treatments. However, CSL utilizes only the latticetranslational symmetry of the crystals and is not applicable to nonsymmorphic crystals or in cases where the point group symmetry elements are important.
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The diffraction of electrons by anthracene

Proceedings of the Physical Society, 1939
The diffraction of electrons by anthracene crystals gives results which are in agreement with the structure as previously determined with x rays. In addition to the normal type of multispot pattern characteristic of electron diffraction by thin single crystals, however, there appears superimposed another pattern consisting of areas or islands of ...
A Charlesby, H Wilman, G I Finch
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An electron diffraction instrument

Journal of Scientific Instruments, 1952
The electron optical requirements for the production of electron diffraction patterns are discussed and it is shown that the resolving power is a function of the size of the electron source. A new production instrument is described which has been designed for general adaptability and simplicity of operation.
R G Garfitt, R S Page
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Electron Backscatter Diffraction

2019
Electron backscatter diffraction (EBSD) is a scanning electron microscope (SEM) based technique that is used to obtain local information on the crystallographic character of bulk crystalline and polycrystalline materials. Topics discussed in this article include: EBSD system overview, multiphase analysis, and application to aluminum integrated circuit ...
David P. Field, Mukul Kumar
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Towards jitter-free ultrafast electron diffraction technology

, 2020
Hyun Woo Kim, N. Vinokurov, I. Baek, K. Y. Oang, Mi Hye Kim, Young Chan Kim, K. Jang, Kitae Lee, S. H. Park, Sunjeong Park, Junho Shin, Jungwon Kim, F. Rotermund, S. Cho, T. Feurer, Y. Jeong   +15 more
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Electron Scattering and Diffraction

2015
Clinton Joseph Davisson (1881–1958) was born in Bloomington, Illinois.1 He enrolled at the University of Chicago in 1902 after graduating from the public high school. Before finishing his Bachelor of Science degree, however, he was hired as a part-time physics instructor by Princeton University. During his time at Princeton, he was able to complete the
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The Theory of Electron Diffraction

Physical Review, 1953
Verner Schomaker, Roy Glauber
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Ultrafast Electron Diffraction

2001
Molecular dynamics is now routinely studied on femtosecond time scales using various spectroscopies. However, direct structural information of all nuclear coordinates involved in such dynamical processes requires resolution in time by x-ray or electron diffraction. The focus of this laboratory has been the development of ultrafast electron diffraction (
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