WebOct 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... 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
(PDF) Electron-stimulated desorption from molecular ices
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, … WebFeb 15, 2024 · Stimulated desorption 1503 a surface impinged by an ion beam of intermediate energy (of the order of 1 02- 1 O4 eV). The physical processes which are responsible for the desorption of the ions in SIMS have both kinematic and electronic components (Williams 1979, Schulta et a1 1983). We will present a number of examples … mash netwerk
Electron-stimulated desorption: Principles and applications
Web14 hours ago · The thermally stimulated desorption curves showed that hydrogen begins to release from the composite where the MgH 2 decomposition is ... (EDX) using an X-Max 50 energy dispersive X-ray spectrometer (Oxford Instruments plc, UK). Transmission electron microscopy (TEM) observations were performed on a CM 12 microscope … WebMay 8, 2024 · We compared positron- and electron-stimulated desorption (e + SD and ESD) of positive ions from a TiO 2 (110) surface. Although desorption of O + ions was observed in both experiments, the ... mash nelson