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Precession electron diffraction information


Geometry of electron beam in precession electron diffraction. Original diffraction patterns collected by C.S. Own at Northwestern University[1]

Precession electron diffraction (PED) is a specialized method to collect electron diffraction patterns in a transmission electron microscope (TEM). By rotating (precessing) a tilted incident electron beam around the central axis of the microscope, a PED pattern is formed by integration over a collection of diffraction conditions. This produces a quasi-kinematical diffraction pattern that is more suitable as input into direct methods algorithms to determine the crystal structure of the sample.

  1. ^ Cite error: The named reference thesis was invoked but never defined (see the help page).

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Precession electron diffraction

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Precession electron diffraction (PED) is a specialized method to collect electron diffraction patterns in a transmission electron microscope (TEM). By...

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approaches to reduce dynamical effects such as precession electron diffraction and three-dimensional diffraction methods. Averaging over different directions...

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Microcrystal electron diffraction

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Usykin in 1933, which has since been used for surfaces, via precession electron diffraction, with much of the early work described in the work of Boris...

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by Jon Gjønnes who combined three-dimensional electron diffraction with precession electron diffraction and direct methods to solve an intermetallic,...

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Transmission electron microscopy

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transmission electron microscopy (HRTEM) Low-voltage electron microscope (LVEM) Precession electron diffraction Scanning confocal electron microscopy "Viruses"...

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4D scanning transmission electron microscopy

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diffraction", scanning electron nano diffraction, nanobeam electron diffraction, or pixelated STEM. The use of diffraction patterns as a function of position...

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Crystallography

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Neutron diffraction at the ILL NMR crystallography Point group Precession electron diffraction Quasicrystal Reflection high-energy electron diffraction Space...

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Electron

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from electron diffraction data are far less reliable than their counterparts from X-ray single-crystal and powder diffraction data. Existing precession electron...

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using electron crystallography. 1998 - A group led by Jon Gjønnes combined three-dimensional electron diffraction with precession electron diffraction and...

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Nucleon magnetic moment

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ratio is also the ratio between the observed angular frequency of Larmor precession and the strength of the magnetic field in nuclear magnetic resonance applications...

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Max von Laue

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superconductivity, Theorie der Supraleitung, and revised his books on electron diffraction, Materiewellen und ihre Interferenzen, and the first volume of his...

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Relativistic quantum mechanics

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path. The electron moves in a rotating frame of reference, and this additional precession of the electron is called the Thomas precession. It can be...

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Capgaronnite

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by precession X-ray diffraction and the Weissenberg method on a single crystal. With the data from the single crystal and powder x-ray diffractions Mason...

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Muon spin spectroscopy

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whether the muon spin motion is predominantly a rotation (more precisely a precession around a still magnetic field), a relaxation towards an equilibrium direction...

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Martin Julian Buerger

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Mineralogy at the Massachusetts Institute of Technology. He invented the X-ray precession camera for studies in crystallography. Buerger authored twelve textbooks/monographs...

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Sheldrickite

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15.05 Å, Z = 3 Å; V = 588.23 Å. The precession photographs show sheldrickite to be hexagonal with a diffraction symmetry of 6/mmm, with space-group choices...

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Scientific method

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the work of Hipparchus (190–120 BCE), when determining a value for the precession of the Earth, while controlled experiments can be seen in the works of...

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Magnetic resonance imaging

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prepolarization (on the order of 10–100 mT) and by measuring the Larmor precession fields at about 100 microtesla with highly sensitive superconducting quantum...

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Graphene

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and Paul Scherrer determined the structure of graphite by powder X-ray diffraction. The structure was studied in more detail by V. Kohlschütter and P. Haenni...

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the knowledge of the chemistry of the constituent parts and the X-ray diffraction patterns obtained by Rosalind Franklin. This discovery lead to an explosion...

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transport in non-Euclidean space provides the kinematic basis of Thomas precession twelve years before its experimental discovery by Thomas; Felix Klein...

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Timeline of scientific discoveries

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Hipparchos discovers the apsidal precession of the Moon's orbit. 2nd century BC: Hipparchos discovers Axial precession. 2nd century BC: Hipparchos measures...

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large optical anisotropy, from gray to dull golden orange. The X-ray precession image classifies the coyoteite crystal system as triclinic. The crystal...

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other biomolecules in solution, whereas in solid form crystal x-ray diffraction typically used to identify stereochemistry. The heteronuclear NOE is...

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