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Bending of electron beams due to electrostatic interactions with matter
way electrons can act as waves, and diffract and interact with matter. It also involves the extensive history behind modern electron diffraction, how
Electron_diffraction
Method of observing gaseous atomic structure
Gas electron diffraction (GED) is one of the applications of electron diffraction techniques. The target of this method is the determination of the structure
Gas_electron_diffraction
Imaging and diffraction using electrons that pass through samples
selecting the diffracted beams indicated in diffraction pattern with circles (b) using an aperture at the back focal plane. Grains from which electrons are scattered
Transmission electron microscopy
Transmission_electron_microscopy
Electron diffraction using very short pulses
Ultrafast electron diffraction (UED), also known as femtosecond electron diffraction, is a pump-probe experimental method based on the combination of optical
Ultrafast electron diffraction
Ultrafast_electron_diffraction
Method to determine atomic positions in solids using an electron microscope
scattering, gas electron diffraction developed by Herman Mark and Raymond Weil, diffraction in liquids by Louis Maxwell, and the first electron microscopes
Electron_crystallography
Interference phenomenon of waves
with matter Fraunhofer diffraction – Far-field diffraction Fresnel diffraction – Near-field diffraction Gas electron diffraction – Method of observing
Diffraction
Electron diffraction by reflection from surfaces
Reflection high-energy electron diffraction (RHEED) is a technique used to characterize the surface of crystalline materials. RHEED systems gather information
Reflection high-energy electron diffraction
Reflection_high-energy_electron_diffraction
Particle scattering in which kinetic energy is not conserved
in the case of gas electron diffraction (GED), reflection high-energy electron diffraction (RHEED), and transmission electron diffraction, because the energy
Inelastic_scattering
Chemical compound
The P 4 molecule in the gas phase has a P-P bond length of rg = 2.1994(3) Å as was determined by gas electron diffraction. The β form of white phosphorus
White_phosphorus
Elementary particle with negative charge
studies. Low-energy electron diffraction (LEED) is a method of bombarding a crystalline material with a collimated beam of electrons and then observing
Electron
Toxic gaseous compound (COCl2)
Kuchitsu, K. (1980). "Molecular Structure of Phosgene as Studied by Gas Electron Diffraction and Microwave Spectroscopy. The rz Structure and Isotope Effect"
Phosgene
Study of the 3D shapes of molecules
between nuclei and concentration of electron density. Gas electron diffraction can be used for small molecules in the gas phase. NMR and FRET methods can
Molecular_geometry
Colorless flammable liquid with an ammonia-like odor
pyramidal. The structure of the free molecules was determined by gas electron diffraction and microwave spectroscopy. The N–N single bond length is 1.447(2)
Hydrazine
Technique for determining surface structures
Low-energy electron diffraction (LEED) is a technique for the determination of the surface structure of single-crystalline materials by bombardment with
Low-energy electron diffraction
Low-energy_electron_diffraction
Chemical compound
experimentally in the gas phase (combined gas-electron diffraction and microwave spectroscopy, GED/MW) and in the crystalline state (X-ray diffraction, XRD) (see
Methyl_nitrate
Organic compound (H–CHO); simplest aldehyde
molecular geometry of gaseous formaldehyde has been determined by gas electron diffraction and microwave spectroscopy. The bond lengths are 1.21 Å for the
Formaldehyde
Organic compound (CH3–C≡N); simplest organic nitrile
Structures of Hydrogen Cyanide and Acetonitrile as Studied by Gas Electron Diffraction". Bulletin of the Chemical Society of Japan. 47 (2): 299–304. doi:10
Acetonitrile
Particle collisions conserving kinetic energy
electron diffraction techniques like reflection high energy electron diffraction (RHEED), transmission electron diffraction (TED), and gas electron diffraction
Elastic_scattering
Elastic interaction of x-rays with electrons
sources. Similar diffraction patterns can be produced by related scattering techniques such as electron diffraction or neutron diffraction. If single crystals
X-ray_diffraction
Chemical element with atomic number 15 (P)
(11 nA/T). The P4 molecule in the gas phase has a P-P bond length of 2.1994(3) Å as determined by gas electron diffraction. White phosphorus exists in two
Phosphorus
Organized way in which molecules are ordered and sorted
metric three-dimensional information: can be obtained for gases by gas electron diffraction and microwave (rotational) spectroscopy (and other rotationally
Chemical_structure
British physicist (1892–1975)
with Clinton Davisson "for their experimental discovery of the diffraction of electrons by crystals." His father, J. J. Thomson, won the Nobel Prize in
George_Paget_Thomson
Chemical compound
spectroscopy. Similar dimensions of 1.98 Å and 98° are found by gas electron diffraction. Michalke, K.; Wickenheiser, E. B.; Mehring, M.; Hirner, A. V.;
Dimethyl_selenide
Principal energy levels in atomic physics
of X-ray diffraction: the first was unconnected with the type of material used in the experiment and could be polarized. The second diffraction beam he
Electron_shell
Topics referred to by the same term
ged in Wiktionary, the free dictionary. Ged or GED may refer to: Gas electron diffraction General Educational Development test, an American and Canadian
Ged
Solid forms of the element phosphorus
The free P4 molecule in the gas phase has a P-P bond length of rg = 2.1994(3) Å as was determined by gas electron diffraction. Despite the tetrahedral arrangement
Allotropes_of_phosphorus
Experimental method in X-ray diffraction
powder diffraction is with X-rays, the focus of this article, although some aspects of neutron powder diffraction are mentioned. (Powder electron diffraction
Powder_diffraction
interaction of a 2D gas with surroundings, e.g. condensation of a 2D gas) or integral (measuring integral properties of 2D gases, e.g. by diffraction methods).
Two-dimensional_gas
Quantum mechanical waves describing matter
and interaction characteristics of electrons, neutrons, and atoms are leveraged for advanced microscopy and diffraction technologies. At the end of the 19th
Matter_wave
Laser using electron beam in vacuum as gain medium
expected number of diffraction patterns is also expected to increase by a substantial amount. The increase in the number of diffraction patterns will place
Free-electron_laser
Type of electron microscope
electron microscope (SEM) is a type of electron microscope that produces images of a sample by scanning the surface with a focused beam of electrons.
Scanning_electron_microscope
Beam of electrons observed in vacuum tubes
tube Electron beam processing Electron diffraction Electron microscope Electron beam melting Electron beam welding Electron beam technology Electron gun
Cathode_ray
Chemical compound
molecular structure of diboron tetrachloride, B2Cl4, was determined by gas electron diffraction. The molecules have D2d symmetry, i.e. the two planar BBCl2 units
Diboron_tetrachloride
Technique to investigate atomic structures using neutron scattering
to obtain a diffraction pattern that provides information of the structure of the material. The technique is similar to X-ray diffraction but, due to
Neutron_diffraction
Chemical compound
C3v molecular symmetry, with the structure S=PCl3. According to gas electron diffraction, the phosphorus–sulfur bond length is 189 pm and the phosphorus–chlorine
Thiophosphoryl_chloride
Chemical compound
various phases. Early investigations by gas electron diffractions were unable to describe the observed diffraction pattern in full and only the application
Tetranitromethane
Type of chromatography
emission spectra is diffracted by a diffraction grating and detected by a series of photomultiplier tubes or photo diodes. Electron capture detector (ECD)
Gas_chromatography
Scanning electron microscope with a gaseous environment in the specimen chamber
"environmental" cells with water or atmospheric gas, in conjunction with conventional and scanning transmission types of electron microscopes. However, the first images
Environmental scanning electron microscope
Environmental_scanning_electron_microscope
Imaging technique for solid chemical analysis
of using an electron beam to produce analytical X-rays, but never constructed a working model. His design proposed using Bragg diffraction from a flat
Electron_probe_microanalysis
Scanning microscopy using thin samples and transmitted electrons
(see above). CBED differs from conventional electron diffraction in that CBED patterns consist of diffraction disks, rather than spots. The width of CBED
Scanning transmission electron microscopy
Scanning_transmission_electron_microscopy
Chemical compound
colorless liquid. Its structure was determined through the use of electron diffraction intensities and rotational spectroscopy. Two main types of reactions
Acetyl_cyanide
on the diffraction of X-rays and electrons in gases." 1936 - Hans Boersch [de] showed that electron microscope could be used as micro-diffraction cameras
Timeline_of_crystallography
Non-crystalline solid
needed] Unlike crystalline materials, which exhibit strong Bragg diffraction, the diffraction patterns of amorphous materials are characterized by broad and
Amorphous_solid
Chemical compound
dialkylzinc compounds studied by density functional theory calculations, gas electron diffraction and photoelectron spectroscopy". Dalton Transactions (22): 4356–4366
Diethylzinc
Chemical compound
Ivanov, A; Ivashkevich, L; Spiridonov, V (1977). "Two independent gas electron diffraction investigations of the structure of plumbous chloride". Journal
Lead(II)_chloride
Chemical compound
utilizing multi-configurational self-consistent field (MCSCF) and gas electron diffraction. Like cyclobutane, the small heterocyclic ring of silacyclobutane
Silacyclobutane
Emission of secondary X-rays from a material excited by high-energy X-rays
scientific methods that use X-ray/neutron or electron diffraction the before mentioned planes of a diffraction can be doubled to display higher order reflections
X-ray_fluorescence
Chemical compound
investigated both in the gas state (gas electron diffraction) and in the crystalline phase (X-ray diffraction). In the crystal, it aggregates via C-H---F
Trans-1,3,3,3-Tetrafluoropropene
Trans-1,3,3,3-Tetrafluoropropene
Vacuum tube used to display images
cathode ray tube (CRT) is a vacuum tube containing one or more electron guns, which emit electron beams, which are directed and controlled to display images
Cathode_ray_tube
Norwegian chemist (1936–2023)
laboratory for gas electron diffraction. He, his co-workers and colleagues determined the structures of umpteen important chemical compounds in the gas phase.
Arne_Haaland
Recording to reproduce a three-dimensional light field
to understand interference and diffraction. Interference occurs when one or more wavefronts are superimposed. Diffraction occurs when a wavefront encounters
Holography
Chemical compound
dialkylzinc compounds studied by density functional theory calculations, gas electron diffraction and photoelectron spectroscopy". Dalton Transactions (22): 4356–4366
Dimethylzinc
Technique used for determining crystal structures and identifying mineral compounds
beam of incident X-rays to diffract in specific directions. By measuring the angles and intensities of the X-ray diffraction, a crystallographer can produce
X-ray_crystallography
Lithography using 13.5 nm UV light
7271, 72711E (2009). "Double Diffraction Model of EUV Masks". 26 September 2021 – via www.youtube.com. "Double Diffraction in EUV Masks: Seeing Through
Extreme ultraviolet lithography
Extreme_ultraviolet_lithography
Chemical compound
structure of tris(pentafluorophenyl)borane (BCF) was determined by gas electron diffraction. It has a propeller-like arrangement of its three pentafluorophenyl
Tris(pentafluorophenyl)borane
Austrian-American chemist
F. Mark – Pioneer of polymer chemistry and initiator of the gas-phase electron diffraction technique of molecular structure determination". Structural
Herman_Francis_Mark
Type of cathode-ray tube
electron diffraction, a simple deflection tube with a fluorescent screen, and one which could be used to measure the charge-to-mass ratio of an electron. The
Teltron_tube
beam electron diffraction CCM – Charge collection microscopy CDI – Coherent diffraction imaging CE – Capillary electrophoresis CET – Cryo-electron tomography
List of materials analysis methods
List_of_materials_analysis_methods
Conversion constant for amount of substance
accurate estimate of the Avogadro number. X-ray crystallography uses the diffraction of X-rays by a crystal to accurately measure the distances between layers
Avogadro_constant
Deviation of electrons from their original trajectories
interaction involving the electrons of an atom, however nuclear Compton scattering does exist.[citation needed] The first electron diffraction experiment was conducted
Electron_scattering
Chemical element with atomic number 1 (H)
common isotope of hydrogen, 1H, consists of one proton, one electron, and no neutrons. Hydrogen gas was first produced artificially in the 17th century by
Hydrogen
Organic compound, industrial chemical
structure and conformation of diethylmethylamine determined by gas electron diffraction and vibrational spectroscopy combined with theoretical calculations"
N,N-Diethylmethylamine
Organic compound (H3C–CH3)
have been measured to high precision by microwave spectroscopy and electron diffraction: rC−C = 1.528(3) Å, rC−H = 1.088(5) Å, and ∠CCH = 111.6(5)° by microwave
Ethane
Chemical compound
Structure of 3,3-Diethylpentane (Tetraethylmethane) in the Gas Phase as Determined by Electron Diffraction and ab Initio Calculations". The Journal of Organic
Tetraethylmethane
Chemical compound
Structures of Pentamethylarsenic(V) and Trimethyldichloroarsenic(V) by Gas Electron Diffraction and ab Initio Calculations:? Molecular Mechanics Calculations on
Pentamethylarsenic
Chemical compound
(2023). "Molecular structure of 3,4-dicyanofuroxan studied by gas electron diffraction. Application of DFT theory and coupled cluster computations". Chemical
Furoxan
British physicist (1856–1940)
electricity by gases." In 1897, he showed that cathode rays were composed of previously unknown negatively charged particles (now called electrons), which he
J._J._Thomson
Transmission electron microscopy (TEM) Titration Thermogravimetric Analysis (TGA) Vacuum fusion X-ray photoelectron spectroscopy (XPS) X-ray diffraction (XRD)
List of chemical analysis methods
List_of_chemical_analysis_methods
Organic compound with a –C≡N functional group
Structures of Hydrogen Cyanide and Acetonitrile as Studied by Gas Electron Diffraction". Bulletin of the Chemical Society of Japan. 47 (2): 299–304. doi:10
Nitrile
Type of chemical bond in metals
conduction electrons (in the form of an electron cloud of delocalized electrons) and positively charged metal ions. Metal atoms lose their valence electrons to
Metallic_bonding
Chemical element with atomic number 17 (Cl)
yellow-green gas at room temperature. It is an extremely reactive element and a strong oxidising agent: among the elements, it has the highest electron affinity
Chlorine
Device that emits light via optical amplification
different. Unlike gas, liquid, or solid-state lasers, which rely on bound atomic or molecular states, FELs use a relativistic electron beam as the lasing
Laser
Diffraction of He from surfaces
material by measuring the diffracted atoms from a monochromatic helium beam incident on the sample. The first recorded helium diffraction experiment was completed
Helium_atom_scattering
Type of electromagnetic radiation
Radio waves can reach points beyond the line-of-sight by diffraction and reflection. Diffraction causes radio waves to bend around obstructions such as
Radio_wave
Form of electromagnetic radiation
If the electron has enough energy, it can knock an orbital electron out of the inner electron shell of the target atom. After that, electrons from higher
X-ray
Chemical element with atomic number 2 (He)
In a plasma, helium's electrons are not bound to its nucleus, resulting in very high electrical conductivity, even when the gas is only partially ionized
Helium
of molecular orbitals. Furthermore, the electron density of a system can be calculated both by X-ray diffraction experiments and theoretical wavefunction
Non-covalent interactions index
Non-covalent_interactions_index
Chemical compound
Kimura, Masao; Schomaker, Werner; Smith, Darwin W.; Bernard (1968). "Electron-Diffraction Investigation of the Hexafluorides of Tungsten, Osmium, Iridium,
Uranium_hexafluoride
Artificial radioisotope of iron
X-rays and Auger electrons. It is sometimes used as an X-ray source for various scientific analysis methods, such as X-ray diffraction and X-ray fluorescence
Iron-55
"Supersilyl radicals from the dissociation of superdisilane observed by gas electron diffraction". Chem. Commun. (25): 2618–2620. doi:10.1039/B702599H. ISSN 1359-7345
Dispersion stabilized molecules
Dispersion_stabilized_molecules
Non-mathematical introduction
Germer fired slow-moving electrons at a crystalline nickel target which showed a diffraction pattern indicating wave nature of electron whose theory was fully
Introduction to quantum mechanics
Introduction_to_quantum_mechanics
Chemical compound
hydrides. He proposed the first ethane-like structure of diborane. Electron diffraction measurements by S. H. Bauer initially appeared to support his proposed
Diborane
Branch of physics focused on matter in the solid state
crystallographic techniques, including X-ray crystallography, neutron diffraction and electron diffraction. The sizes of the individual crystals in a crystalline solid
Solid-state_physics
Free crystallographic software
advanced diffraction features like double diffraction covered by dynamical diffraction theory, even though some phenomena caused by multiple electron-matter
CrysTBox
Describes the range of energies of an electron within the solid
November 2016. High-energy bands are important for electron diffraction physics, where the electrons can be injected into a material at high energies,
Electronic_band_structure
scattering of higher energy electron with lower wavelength. This causes a loss of coherent signal which is required for diffraction and imaging. Mechanical
In_situ_electron_microscopy
Chemical compound
molecular structure of tellurium dichloride, TeCl2, determined by gas electron diffraction". Journal of Molecular Structure. 128 (1–3). Elsevier BV: 29–31
Tellurium_dichloride
Chemical compound (OH–)
format. It can even act as a 3-electron-pair donor, as in the tetramer [PtMe3(OH)]4. When bound to a strongly electron-withdrawing metal centre, hydroxide
Hydroxide
Chemical compound
Structures of Pentamethylarsenic(V) and Trimethyldichloroarsenic(V) by Gas Electron Diffraction and ab Initio Calculations:? Molecular Mechanics Calculations on
Pentamethylantimony
Physical interaction of charged particles
backscattering. Electron on nuclei are employed in electron polarimeters and, for coherent electron sources, in many different kinds of electron diffraction. Couloumb
Coulomb_scattering
Range of physical processes in physics
change) of alpha particles by gold nuclei, the Bragg scattering (or diffraction) of electrons and X-rays by a cluster of atoms, and the inelastic scattering
Scattering
Model for predicting molecular geometry
Valence shell electron pair repulsion (VSEPR) theory (/ˈvɛspər, vəˈsɛpər/ VESP-ər, və-SEP-ər) is a model used in chemistry to predict the geometry of individual
VSEPR_theory
Physical phenomenon
electrons. It occurs when an inner-shell vacancy in an atom is filled by an electron, releasing energy that causes the emission of another electron from
Auger_effect
Particle accelerator designed to produce intense x-ray beams
specialized particle accelerators, typically accelerating electrons. Once the high-energy electron beam has been generated, it is directed into auxiliary
Synchrotron_light_source
Frequencies of light emitted by atoms or chemical compounds
discovered the principles of diffraction grating and American astronomer David Rittenhouse made the first engineered diffraction grating. In 1821 Joseph von
Emission_spectrum
Chemical compound
"Dichlorotrifluorophosphorane (PCl2F3): molecular structure by gas-phase electron diffraction and quadratic force field". Inorganic Chemistry. 24 (18): 2774–2777
Phosphorus trifluorodichloride
Phosphorus_trifluorodichloride
Branch of physics
for a classical electron moving through a metallic solid. Drude's model described properties of metals in terms of a gas of free electrons, and was the first
Condensed_matter_physics
Study involving matter and electromagnetic radiation
eyes. Rather, spectroscopy involves the splitting of light by a prism, diffraction grating, or similar instrument, to display a particular discrete line
Spectroscopy
Study of solid materials' properties and composition
products is powder diffraction because many solid-state reactions will produce polycrystalline molds or powders. Powder diffraction aids in the identification
Solid-state_chemistry
American Condensed-Matter Physicist
crystalline and electronic materials under elevated pressure using X-ray diffraction and elastic property measurements. This work included studies of intermediate-valence
Hubert_E._King_Jr.
GAS ELECTRON-DIFFRACTION
GAS ELECTRON-DIFFRACTION
Male
English
 English short form of Latin Augustus, GUS means "venerable."
Boy/Male
Arabic
Electric Light
Female
Hebrew
(גַּל) Hebrew unisex name GAL means "mound, wave."
Girl/Female
Greek
Sparkling. The fiery sun. Mythological daughter of Agamemnon. In literature she was a central...
Boy/Male
Muslim
Selection, Choice
Boy/Male
Arabic, Hindu, Indian, Muslim
Election; Last Dream
Boy/Male
Muslim/Islamic
Selection choice
Female
English
Variant spelling of English Gay, GAE means "happy."
Surname or Lastname
South German, Swiss, and Jewish (Ashkenazic)
South German, Swiss, and Jewish (Ashkenazic) : topographic name for someone who lived in a street in a city, town, or village, Middle High German gazze, German Gasse, Yiddish gas ‘street’, ‘side street’.English : variant of Gash.Altered spelling of German Gast, found in the areas of Swiss settlement.
Girl/Female
American, Hindu, Indian
Selection
Male
Native American
Native American Navajo name YAS means "snow."
Male
Native American
Native American Navajo name GAD means "juniper tree."
Male
English
 Short form of English names beginning with Gay-, such as Gabriel "man of God" or "warrior of God," and Gaylord, GAY means "dandy." Compare with feminine Gay.
Girl/Female
Australian, Danish, Greek
Bright; Shining
Male
Greek
(Γάδ) Greek form of Hebrew Gad, GAD means "troop." In the bible, this is the name of a tribe descended from Gad, mentioned in the New Testament in Rev vii. 5. Compare with other forms of Gad.
Female
English
English name derived from the vocabulary word, GAY means "happy." Compare with masculine Gay.
Female
English
Medieval English form of Latin Agatha, AGAS means "good."
Male
Hebrew
(גָּד) Hebrew name GAD means "troop." In the bible, this is the name of a prophet and the seventh son of Jacob by Zilpah. Compare with other forms of Gad.
Male
English
Short form of English Basil, BAS means "king" or "basil (the herb)."
Boy/Male
Arabic, Muslim, Sindhi
Selection; Choice
GAS ELECTRON-DIFFRACTION
GAS ELECTRON-DIFFRACTION
Boy/Male
Indian
Forgiver, Merciful
Girl/Female
Norse
One of Frigga's ladies in waiting.
Boy/Male
Hindu
A Man whose power is equal to the power of ten maharathis. rathi means chariot fighter (Rama's father and King of Kosala)
Boy/Male
American, Australian, British, Celtic, Christian, English, Gaelic, Indian, Irish, Scottish
Thin; Slender; Lean; Lean or Thin; Little Yellow One
Boy/Male
Arabic, Muslim
Swift
Boy/Male
Australian, Iranian, Parsi
A Character in Shahnameh; Feraydoon's Father; Reached; Full; Complete; Fit
Girl/Female
Australian, Danish, Finnish
Behind
Boy/Male
Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Punjabi, Sanskrit, Sikh, Telugu, Traditional
Devotee
Girl/Female
Hindu, Indian
Serpent
Female
Japanese
(梅å) Japanese name UMEKO means "plum blossom child."
GAS ELECTRON-DIFFRACTION
GAS ELECTRON-DIFFRACTION
GAS ELECTRON-DIFFRACTION
GAS ELECTRON-DIFFRACTION
GAS ELECTRON-DIFFRACTION
a.
Pertaining to the movements or force of electric or galvanic currents; dependent on electric force.
n.
An election held by itself, not at the time of a general election.
n.
A lesson or selection, esp. of Scripture, read in divine service.
a.
Producing electro-motion; producing, or tending to produce, electricity or an electric current; causing electrical action or effects.
n.
Amber; also, the alloy of gold and silver, called electrum.
a.
The act of choosing; choice; selection.
n.
That which is selected; a collection of things chosen; as, a choice selection of books.
n.
Alt. of Electro-puncturing
a.
Alt. of Electro-dynamical
a.
Made of electrum, an alloy used by the ancients.
n.
Laughing gas.
a.
Alt. of Electro-metrical
a.
Of or pertaining to electro-chemistry.
a.
Pertaining to electro-ballistics.
a.
Of or pertaining to electro-kinetics.
n.
One versed in electro-biology.
a.
Pert. to, or caused by, electro-capillarity.
a.
Pertaining to an election or to electors.
n.
An instrument for measuring the strength of electro-dynamic currents.