electron spectra

  • 1 Electron paramagnetic resonance — (EPR) or electron spin resonance (ESR) spectroscopy is a technique for studying chemical species that have one or more unpaired electrons, such as organic and inorganic free radicals or inorganic complexes possessing a transition metal ion. The… …

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  • 2 Electron configuration — Electron atomic and molecular orbitals Simp …

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  • 3 Electron — For other uses, see Electron (disambiguation). Electron Experiments with a Crookes tube first demonstrated the particle nature of electrons. In this illustration, the profile of the cross shaped target is projected against the tube face at right… …

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  • 4 Electron energy loss spectroscopy — In electron energy loss spectroscopy (EELS) a material is exposed to a beam of electrons with a known, narrow range of kinetic energies. Some of the electrons will undergo inelastic scattering, which means that they lose energy and have their… …

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  • 5 Electron microprobe — An electron microprobe (EMP), also known as an electron probe microanalyser (EPMA) is an analytical tool used to non destructively determine the chemical composition of small volumes of solid materials. It works similarly to a scanning electron… …

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  • 6 Electron Beam Ion Source — Eine Electron Beam Ion Trap (EBIT, Elektronenstrahl Ionenfalle) ist eine spezielle Art von Ionenfalle. Dieser Typ Falle eignet sich insbesondere für die Erzeugung und Speicherung hochgeladener Ionen. In ihr werden niedriggeladene Ionen… …

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  • 7 Electron Beam Ion Trap — Eine Electron Beam Ion Trap (EBIT) bzw. Elektronenstrahl Ionenfalle ist eine spezielle Art von Ionenfalle. Dieser Typ Falle eignet sich insbesondere für die Erzeugung und Speicherung hochgeladener Ionen. In ihr werden niedriggeladene Ionen… …

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  • 8 Electron spectrometer — In an Electron spectrometer, an incoming beam of electrons is bent with electric or magnetic fields. As higher energy electrons will be bent less by the beam, this produces a spatially distributed range of energies. Electron spectrometers are… …

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  • 9 Auger electron spectroscopy — (AES; Auger pronounced|oːʒeː in French) is a common analytical technique used specifically in the study of surfaces and, more generally, in the area of materials science. Underlying the spectroscopic technique is the Auger effect, as it has come… …

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  • 10 Scanning electron microscope — These pollen grains taken on an SEM show the characteristic depth of field of SEM micrographs …

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  • 11 Photoemission electron microscopy — (PEEM, also called photoelectron microscopy, PEM) is a widely used type of emission microscopy. PEEM utilizes local variations in electron emission to generate image contrast. The excitation is usually produced by UV light, synchrotron radiation… …

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  • 12 Scanning transmission electron microscopy — A scanning transmission electron microscope (STEM) is a type of transmission electron microscope. With it, the electrons pass through the specimen, but, as in scanning electron microscopy, the electron optics focus the beam into a narrow spot… …

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  • 13 Energy filtered transmission electron microscopy — (EFTEM) is a technique used in Transmission electron microscopy, in which only electrons of particular kinetic energies are used to form the image or diffraction pattern. The technique can be used to aid chemical analysis of the sample in… …

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  • 14 Gas electron diffraction — (GED) is one of the applications of electron diffraction techniques. The target of this method is the determination of the structure of gaseous molecules i.e. the geometrical arrangement of the atoms from which a molecule is built up.The… …

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  • 15 Inelastic electron tunneling spectroscopy — (IETS) is an experimental tool for studying the vibrations of molecular adsorbates on metal oxides. It yields vibrational spectra of the adsorbates with high resolution ( …

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  • 16 Core electron — Core electrons are the electrons in an atom that are not valence electrons and therefore do not participate in bonding. An example: the carbon atom has a total of 6 electrons, 4 of them being valence electrons. So the remaining 2 electrons must… …

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  • 17 Neutrino — For other uses, see Neutrino (disambiguation). Neutrino/Antineutrino The first use of a hydrogen bubble chamber to detect neutrinos, on November 13, 1970. A neutrino hit a proton in a hydrogen atom. The collision occurred at the point where three …

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  • 18 William Vermillion Houston — Infobox Scientist name = William Vermillion Houston image width = caption = birth date = January 19, 1900 birth place = Mount Gilead, Ohio, U.S. death date = August 22, 1968 death place = Edinburgh, Scotland residence = citizenship = nationality …

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  • 19 Hermann Hartmann — (May 4, 1914 ndash; October 22, 1984) was a German chemist and professor and researcher in physical and theoretical chemistry at the University of Frankfurt am Main. He contributed to all fields of physical chemistry and was instrumental in… …

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  • 20 Cosmos 219 — Estado Reentrado en la atmósfera Fecha de lanzamiento 26 de abril de 1968 Vehículo de lanzamiento Cosmos 2I Sitio de lanzamiento Cosmódromo de Kapustin Yar …

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