Electron-stimulated desorption
WebThe Workshop on Desorption Induced by Electronic Transitions (DIET) took place May 12-14, 1982, in Williamsburg, Virginia. ... of the leading workers in the fields of electron and photon stimulated desorption from surfaces, as well as many workers in related fields, including ... sputtering, gas-phase photodissociation and solid-state theory ... Electron-stimulated desorption occurs as a result of an electron beam incident upon a surface in vacuum, as is common in particle physics and industrial processes such as scanning electron microscopy (SEM). At atmospheric pressure, molecules may weakly bond to surfaces in what is known as adsorption. See more Desorption is the physical process where a previously adsorbed substance is released from a surface. This happens when a molecule gains enough energy to overcome the activation barrier of the bounding energy … See more • Adsorption • Desorptive capacity • Sorption isotherm • Chemisorption • Gibbs isotherm • Moisture sorption isotherm See more Depending on the nature of the adsorbent-to-surface bond, there are a multitude of mechanisms for desorption. The surface bond of a sorbant … See more Desorption is a physical process that can be very useful for several applications. In this section two applications of thermal desorption are explained. One of them is actually a technique of thermal desorption, temperature programmed desorption, rather than an … See more
Electron-stimulated desorption
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WebJul 9, 2008 · Electron stimulated desorption ABSTRACT. A simple model is proposed to explain how a breakdown avalanche of secondary emission electrons can lead to surface flashover when an insulator in vacuum breaks down a few nanoseconds after high voltage is applied. The case of a plane insulator ... WebJul 8, 2014 · The reduction of thermal outgassing from stainless steel by surface polishing or vacuum firing is well-known in vacuum technology, and the consequent use of both techniques allows an even further reduction of outgassing. The aim of this study was to identify the effectiveness of surface polishing and vacuum firing for reducing electron …
WebNov 4, 2024 · Electron-stimulated desorption (ESD) of cryosorbed molecules on surfaces is a process of relevance to fields as varied as vacuum dynamics in accelerators and astrochemistry. While desorption from such molecular systems induced by keV electrons and fast ions has been extensively studied, the sub-keV electron regime is … Webvolved in the photon-stimulated emission of neutral, excited-state hydrogen from these systems: viz. a resonant, valence excitation to neutral dissociative levels of the surface alkali hydride molecule or complex. An analogous electron-stimulated desorption mechanism is also proposed. Knotek2 correlated incident electron energy thresholds of
http://webdoc.sub.gwdg.de/ebook/diss/2003/fu-berlin/1999/24/ch_7.pdf WebAug 22, 2024 · In this study, the electron stimulated desorption (ESD) yields were studied for Ti-Zr-V coating deposited from a twisted target with its thickness less than 0.5 μm, …
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WebJun 4, 1998 · Adsorption and electron stimulated processes of NH 3 on rutile TiO 2 (110) have been studied by means of x‐ray photoemission spectroscopy (XPS) and low‐energy ion scattering (LEIS). Defects, mostly surface oxygen vacancies, can be produced easily on TiO 2 surfaces by thermal treatment or by rare gas ion sputtering. We have used three … ford dealer mitchell actellis leather biker jacket allsaintsWebSep 3, 2010 · An installation for investigation of the electron stimulated desorption (ESD) from both pumping and nonpumping tubular samples was designed and built. This … ellis lesemann attorney charlestonWebDec 7, 2000 · These processes are termed electron-stimulated desorption (ESD) phenomena, and this review is primarily concerned with the use of ESD in studies of species adsorbed on surfaces. Topics covered include experimental methods, a theoretical discussion of physical mechanisms, and a detailed discussion of certain specific and well … ford dealer morristown tnWebOct 19, 2024 · Electron-stimulated desorption (ESD) of cryosorbed molecules on surfaces is a process of relevance to fields as varied as vacuum dynamics in accelerators and astrochemistry. While desorption... ellis leatherbarrowWebSep 3, 2010 · An installation for investigation of the electron stimulated desorption (ESD) from both pumping and nonpumping tubular samples was designed and built. This installation allows studying ESD and … ellis leigh authorWebOct 19, 2024 · Electron-stimulated desorption (ESD) of cryosorbed molecules on surfaces is a process of relevance to fields as varied as vacuum dynamics in accelerators and … ford dealer moncks corner sc