Photon stimulated desorption
WebAug 12, 1999 · The measurement scheme for photon-stimulated desorption (PSD) of Na atoms includes a mechanically chopped photon source (500-W Hg arc lamp with filters), a … WebJan 31, 2001 · Not only does it provide distributed pumping but also reduces the photon and electron stimulated desorption (PSD and ESD) yields [6] [7][8], which allows reduction of the number of pumps and their ...
Photon stimulated desorption
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WebApr 1, 2013 · X-ray photon-stimulated desorption of ions from semiconductor surfaces has been studied in detail by use of synchrotron radiation with photon energies between 2.8 and 12 keV. The excitation ... WebMar 31, 2010 · We report studies of photon-stimulated desorption, also known as light-induced atomic desorption, of sodium atoms from a vacuum-cell glass surface used for loading a magneto-optical trap (MOT). Fluorescence detection was used to record the trapped atom number and the desorption rate. We observed a steep wavelength …
WebMoreover, photon-stimulated desorption studies that make use of synchrotron radiation reveal the fundamental electronic excitations that lead to bond-breaking processes at … WebIn this chapter, we describe a family of SR-based techniques utilizing photon-stimulated desorption (PSD) for the study of surfaces and other low-dimensional structures. It is the objective of this chapter to survey the unique scientific information concerning the …
WebFeb 20, 2024 · Abstract. Photo-stimulated desorption (PSD) is desorption of adsorbed molecules from surfaces induced by photon irradiation. PSD occurs either in thermal or … WebJul 13, 2001 · Photon stimulated desorption (PSD) from KEKB factory copper chambers was measured at the National Synchrotron Light Source (NSLS), located at the Brookhaven Laboratory. The KEKB is an asymmetrical collider recently constructed in Ibaraki, Japan. The collider utilizes two UHV ring chambers, one for a 3.5 GeV positron beam and the other for …
WebIn earlier experiments on the X-ray photon energy dependence of the F-centre yield by monochromatic X-rays, a step was found at the ClK edge in the yield of the F centres in KC1 [29]. ... approaches Walkup and Avouris 1331 have used molecular dynamics to follow the transient motions associated with stimulated desorption in an approach mak- ing ...
WebOct 1, 2024 · The thermal outgassing of NEG coated chamber is negligible, and the photon or electron stimulated desorption significantly decreases. A typical getter coating film … culver city weather radarWebTools. Photostimulation is the use of light to artificially activate biological compounds, cells, tissues, or even whole organisms. Photostimulation can be used to noninvasively probe … easton diamond sports llc thousand oaksWebAug 31, 1998 · Photon stimulated desorption ABSTRACT For condensed benzene ice layers, core photoabsorption near edge structure (x‐ray absorption; recorded by Auger electron … culver city warehouses for saleculver city webcamWebAbstract. A model calculation is presented for photo-stimulated desorption of adsorbates from a metal surface. In the model, the electron system of the material is described by a … easton ec70 road barsWebSynchrotron radiation at the Synchrotron Ultraviolet Radiation Facility at the National Bureau of Standards has been employed to study the adsorption of oxygen on a Ti(001) surface using photon-stimulated desorption (PSD), electron-stimulated desorption (ESD), and ultraviolet photoemission spectroscopy (UPS). The dominant ESD and PSD products … eastone gallery \u0026 marketingWebJun 29, 2024 · The strong temperature dependence is attributed to competition between thermal desorption of the primary photoproduct and secondary photochemical steps. The aldehyde, isobutanal, is the primary photoproduct of isobutanol. ... (110) including temperature-programmed desorption of H 2 O and photon-stimulated desorption of O 2; ... culver city weather forecast 10 day