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RIXS
Resonant inelastic X-ray scattering (RIXS) is an advanced X-ray spectroscopy technique. In the last two decades RIXS has been widely exploited to study the electronic, magnetic and structural properties of quantum materials and molecules. It is a resonant X-rays photon-in photon-out energy loss and momentum resolved spectroscopy, capable of measuring the energy and momentum transferred to specific excitations proper of the sample under study. The use of X-rays guarantees bulk sensitivity, as opposed to Electron energy loss spectroscopy, electron spectroscopies, and the tuning of the incoming X-rays to a specific absorption edge allows for element and chemical specificity. Due to the intrinsic inefficiency of the RIXS process, extremely Brightness, brilliant sources of X-rays are crucial. In addition to that, the possibility to tune the energy of the incoming X-rays is compelling to match a chosen resonance. These two strict conditions make RIXS to be necessarily performed at syn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
X-ray Emission Spectroscopy
X-ray emission spectroscopy (XES) is a form of X-ray spectroscopy in which a core electron is excited by an incident X-ray photon and then this excited state decays by emitting an X-ray photon to fill the core hole. The energy of the emitted photon is the energy difference between the involved electronic levels. The analysis of the energy dependence of the emitted photons is the aim of the X-ray emission spectroscopy. XES is also sometimes referred to as X-ray fluorescence, X-ray Fluorescence (XRF) spectroscopy, and while the terms can be used interchangeably, XES more often describes high energy resolution techniques while XRF studies a wider energy range at lower resolution. There are several types of XES and can be categorized as non-resonant XES (XES), which includes K_-measurements, valence-to-core (VtC/V2C)-measurements, and (K_)-measurements, or as resonant XES (RXES or Resonant inelastic X-ray scattering, RIXS), which includes XXAS+XES 2D-measurement, high-resolution X-ray ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
X-ray Spectroscopy
X-ray spectroscopy is a general term for several Spectroscopy, spectroscopic techniques for characterization of materials by using x-ray radiation. Characteristic X-ray spectroscopy When an electron from the inner shell of an atom is excited by the energy of a photon, it moves to a higher energy level. When it returns to the low energy level, the energy it previously gained by excitation is emitted as a photon of one of the wavelengths uniquely characteristic of the element. Analysis of the X-ray emission spectrum produces qualitative results about the elemental composition of the specimen. Comparison of the specimen's spectrum with the spectra of samples of known composition produces quantitative results (after some mathematical corrections for absorption, fluorescence and atomic number). Atoms can be excited by a high-energy beam of charged particles such as electrons (in an electron microscope for example), protons (see PIXE) or a beam of X-rays (see X-ray fluorescence, or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inelastic X-ray Scattering
X-ray scattering techniques are a family of analytical techniques which reveal information about the crystal structure, chemical composition, and physical properties of materials and thin films. These techniques are based on observing the scattered intensity of an X-ray beam hitting a sample as a function of incident and scattered angle, polarization, and wavelength or energy. Note that X-ray diffraction is sometimes considered a sub-set of X-ray scattering, where the scattering is elastic and the scattering object is crystalline, so that the resulting pattern contains sharp spots analyzed by X-ray crystallography (as in the Figure). However, both scattering and diffraction are related general phenomena and the distinction has not always existed. Thus Guinier's classic text from 1963 is titled "X-ray diffraction in Crystals, Imperfect Crystals and Amorphous Bodies" so 'diffraction' was clearly not restricted to crystals at that time. Scattering techniques Elastic scattering * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Synchrotron Light Source II
The National Synchrotron Light Source II (NSLS-II) at Brookhaven National Laboratory (BNL) in Upton, New York is a national user research facility funded primarily by the U.S. Department of Energy's (DOE) Office of Science. NSLS-II is a synchrotron light source, designed to produce X-rays 10,000 times brighter than BNL's original light source, the National Synchrotron Light Source (NSLS). NSLS-II supports research in energy security, advanced materials synthesis and manufacturing, environment, and human health. Users and partners Users In order to use the NSLS-II, researchers submit a peer-reviewed proposal. In the first five months of 2023, NSLS-II served over 1,200 researchers from academic, industrial, and government laboratories worldwide. Partners NSLS-II has partners with public and private institutions which joined effort to fund the construction and operation of some of its beamlines. Its partnerships include BNL's Center for Functional Nanomaterials and the Nat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inelastic Neutron Scattering
Neutron scattering, the irregular dispersal of free neutrons by matter, can refer to either the naturally occurring physical process itself or to the man-made experimental techniques that use the natural process for investigating materials. The natural/physical phenomenon is of elemental importance in nuclear engineering and the nuclear sciences. Regarding the experimental technique, understanding and manipulating neutron scattering is fundamental to the applications used in crystallography, physics, physical chemistry, biophysics, and materials research. Neutron scattering is practiced at research reactors and spallation neutron sources that provide neutron radiation of varying intensities. Neutron diffraction (elastic scattering) techniques are used for analyzing structures; where inelastic neutron scattering is used in studying atomic vibrations and other excitations. Scattering of fast neutrons "Fast neutrons" (see neutron temperature) have a kinetic energy above 1& ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ID20 ESRF RIXS Spectrometer
ID or its variants may refer to: * Identity document, a document used to verify a person's identity * Identifier, a symbol which uniquely identifies an object or record People * I. D. Ffraid (1814–1875), Welsh poet and Calvinistic Methodist minister * I. D. McMaster (1923–2004), American assistant district attorney * I. D. Serebryakov (1917–1998), Russian lexicographer and translator Places * İd or Narman, a town in Turkey * Idaho, US (postal abbreviation ID) * Indonesia, ISO 3166-1 alpha-2 country code "ID" ** Indonesian language, ISO 639-1 language code "ID" Arts, entertainment, and media Music * The Id (band), an English new wave/synthpop band * New:ID, an upcoming Filipino boy band Albums * ''I.D.'' (album), a 1989 album by The Wailers Band * ''ID'' (Michael Patrick Kelly album), a 2017 studio album by Michael Patrick Kelly * ''Id'' (Siddharta album), 1999 * '' d' (Veil of Maya album), 2010 * ''ID'', an album by Anna Maria Jopek * ''The Id'' (album), a 2001 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rowland Circle Geometry
Rowland may refer to: Places United States *Rowland Heights, California, an unincorporated community in Los Angeles County *Rowland, Kentucky, an unincorporated community * Rowland Township, Michigan * Rowland, Missouri, an unincorporated community * Rowland Township, North Carolina ** Rowland, North Carolina, a town * Rowland, Nevada, a ghost town * Rowland, Oregon, a ghost town Elsewhere *Rowland, Derbyshire, England, a village and civil parish *Rowland (crater), on the Moon People *Rowland (given name), people so named *Rowland (surname), people so named Other *The title character of Childe Rowland, a fairy tale by Joseph Jacobs, based on a Scottish ballad *Rowland Institute for Science, now part of Harvard University *Rowland Theater, Pittsburgh, Pennsylvania, United States See also *Rowland House (other) *Rowland Park (other) *Roland (other) Roland (died 778) was a Frankish military leader in Charlemagne's service, and subject of the epic poem '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reflectance
The reflectance of the surface of a material is its effectiveness in reflecting radiant energy. It is the fraction of incident electromagnetic power that is reflected at the boundary. Reflectance is a component of the response of the electronic structure of the material to the electromagnetic field of light, and is in general a function of the frequency, or wavelength, of the light, its polarization, and the angle of incidence. The dependence of reflectance on the wavelength is called a ''reflectance spectrum'' or ''spectral reflectance curve''. Mathematical definitions Hemispherical reflectance The ''hemispherical reflectance'' of a surface, denoted , is defined as R = \frac, where is the radiant flux ''reflected'' by that surface and is the radiant flux ''received'' by that surface. Spectral hemispherical reflectance The ''spectral hemispherical reflectance in frequency'' and ''spectral hemispherical reflectance in wavelength'' of a surface, denoted and respectively, are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ccd And RIXS Spectrum NiO
CCD may refer to: Science and technology * Charge-coupled device, an electronic light sensor used in various devices including digital cameras * .ccd, the filename extension for CloneCD's CD image file * Carbonate compensation depth, a property of oceans * Colony collapse disorder, a phenomenon involving the abrupt disappearance of honey bees in a beehive or Western honey bee colony * centicandela (ccd), an SI unit of luminous intensity denoting one hundredth of a candela * Central composite design, an experimental design in response surface methodology for building a second order model for a response variable without a complete three-level factorial * Complementary cumulative distribution function * Continuous collision detection, especially in rigid-body dynamics * Countercurrent distribution, used for separating mixtures * Core complex die, an element of AMD Zen 2 and later microprocessor architectures Medicine * Canine compulsive disorder, a behavioral condition in do ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charge-coupled Device
A charge-coupled device (CCD) is an integrated circuit containing an array of linked, or coupled, capacitors. Under the control of an external circuit, each capacitor can transfer its electric charge to a neighboring capacitor. CCD sensors are a major technology used in digital imaging. Overview In a CCD image sensor, pixels are represented by Doping (semiconductor), p-doped metal–oxide–semiconductor (MOS) capacitors. These MOS capacitors, the basic building blocks of a CCD, are biased above the threshold for inversion when image acquisition begins, allowing the conversion of incoming photons into electron charges at the semiconductor-oxide interface; the CCD is then used to read out these charges. Although CCDs are not the only technology to allow for light detection, CCD image sensors are widely used in professional, medical, and scientific applications where high-quality image data are required. In applications with less exacting quality demands, such as consumer and pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diffraction Grating
In optics, a diffraction grating is an optical grating with a periodic structure that diffraction, diffracts light, or another type of electromagnetic radiation, into several beams traveling in different directions (i.e., different diffraction angles). The emerging coloration is a form of structural coloration. The directions or diffraction angles of these beams depend on the wave (light) Angle of incidence (optics), incident angle to the diffraction grating, the spacing or periodic distance between adjacent diffracting elements (e.g., parallel slits for a transmission grating) on the grating, and the wavelength of the incident light. The grating acts as a dispersion (optics), dispersive element. Because of this, diffraction gratings are commonly used in monochromators and spectrometers, but other applications are also possible such as optical encoders for high-precision motion control and wavefront measurement. For typical applications, a reflection (optics), reflective grati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
