Photon stimulated desorption

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August undefined, 2024

Web5]; lowering the photon and electron stimulated gas desorption yields [6, 7] was achieved by having a denser layer at the interface [8]. It was also found that the non-activated or CO saturated NEG coating can be activated by synchrotron radiation (SR) or electron bombardment. The selective pumping of NEG coating is a performance WebSoft laser desorption; Solar-pumped laser; Solar sail; Solid-state laser; Solid-state dye laser; Soviet laser pistol; Space-based solar power; Space debris; Spaser, Surface plasmon amplification by stimulated emission of radiation; Spatial filter; Spatial light modulator; Spatially Encoded Arrangement for SPIDER; Speckle pattern; Spectral hole ...

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WebWe report photon-stimulated desorption (PSD) of ions by the same core-hole Auger-decay mechanism observed in electron-stimulated desorption (ESD). Ions desorbed by … WebSynchrotron 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 … ird taxation

Chemical selectivity in photon-stimulated desorption of fluorine …

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 … WebDec 1, 2011 · Adsorption behavior of atomic deuterium on a hexagonal boron nitride (h-BN) thin film is studied by photon-stimulated ion desorption (PSID) of D + and near edge X-ray absorption fine structure (NEXAFS) at the B and N K-edges.After the adsorption of atomic deuterium, D + desorption yield η(hν) shows clear enhancement at the B K-edge and … WebJan 1, 1999 · stimulated desorption in a vacuum system with cryo-sorbing walls started in 1993 at the Budker Institute of Nuclear Physics (BINP, Novosibirsk, Russia) and at the … ird tax type pso

Photon-stimulated desorption and other spectroscopic …

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WebJul 18, 2024 · However, current estimates of sulfur desorption from Mercury's surface based on solar wind sputtering and micrometeorite impact vaporization underestimate the … WebJun 4, 1998 · In our search for surfaces exhibiting the lowest photon stimulated desorption, we have exposed a 3‐m‐long beam tube to photons from the vacuum ultraviolet ring of … order food travels through digestive systemWebThe Workshop on Desorption Induced by Electronic Transitions (DIET) took place May 12-14, 1982, in Williamsburg, Virginia. The meeting brought together, for the ... 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 ... ird tax treaty section

"WebAug 31, 1998 · Photon stimulated desorption ABSTRACT For condensed benzene ice layers, core photoabsorption near edge structure (x‐ray absorption; recorded by Auger electron … " - Photon stimulated desorption

Photon stimulated desorption

Oleg Malyshev - Editor - VACUUM Elsevier LinkedIn

WebJul 18, 2024 · However, current estimates of sulfur desorption from Mercury's surface based on solar wind sputtering and micrometeorite impact vaporization underestimate the observed abundances. Solar photons can also eject volatile species through a process known as photon-stimulated desorption (PSD) where photons with enough energy can … WebPhoton stimulated desorption PSD studies using synchrotron radiation are providing new insights into fundamental electronic excitation processes at surfaces. Mechanisms for …

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WebMay 19, 2006 · Photon-stimulated desorption is a powerful tool to study fundamental processes in adsorbate-surface systems, as well as to achieve selective surface reactions for controlled surface processing (1–4).Photons are easily directed and tuned in energy to induce transitions in atomic and molecular states, with high spatial and temporal precision. WebPhoton stimulated ion desorption (PSID) surface EXAFS (SEXAFS) showed early promi se, bei ng successfully appl i ed to the Mo (100) /0 system [1]. The techni que offers a means to determi ne the coordi nati on geometry of a substrate atom to which the des orbed adsorbate ion was bonded. Information

WebMoreover, photon-stimulated desorption studies that make use of synchrotron radiation reveal the fundamental electronic excitations that lead to bond-breaking processes at …

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 … Web(Q TH) and photon-stimulated desorption (Q PSD). Q TH arises from the chamber wall and depends on the material. Stainless steel is the material chosen for the vacuum chamber, for which Q TH is about 2.0×10-12 Torr L s-1 cm-2 near 300 K. Q PSD, which is much greater than the rate of thermal desorption, is the major source of gas, and can be ...

WebApr 1, 2024 · This suggests that the "hot" component may be produced by electronically stimulated desorption (e.g., electron-stimulated desorption and/or photon-stimulated If this is the case, a possible "size ...

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 … ird taxable incomeWebElectron-Stimulated Desorption It has now been almost 30 years since the 1971 review article entitled Electron-Stimulated Desorption as a Tool for Studies of Chemisorption: A … order food waste bags aberdeen city councilWebJan 1, 2024 · In this study, photon-stimulated gas desorption yields from CuCrZr, which are used for manufacturing high-heat-load elements, were measured using a synchrotron light … ird taxonomyWebJun 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; ... ird taxpayerWebJul 1, 2007 · Photon‐stimulated desorption (PSD) from the walls of electron storage rings and associated beamlines imposes serious limits on their beam quality and beam lifetimes. Stainless steel (SS) is the ... ird tax typesWebJun 2001 - Present21 years 8 months. Daresbury, Warrington, Cheshire, UK. - Design and operation of Particle Accelerator Vacuum Systems and Large Vacuum Systems. - Vacuum gas dynamics modelling. - Outgassing of different materials in vacuum. - Photon, electron and ion stimulated desorption. - Non-evaporable getter coatings. ird technoglide headsetWebAcademic and Research Staff at Rikkyo University. Researcher Profile. Home; Japanese ird taxper portel