Photon stimulated desorption
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 … 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 …
Photon stimulated desorption
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WebAcademic and Research Staff at Rikkyo University. Researcher Profile. Home; Japanese 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 ...
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 … WebPhoton-stimulated desorption (PSD) from the walls of electron storage rings and associated beamlines imposes serious limits on their beam quality and beam lifetimes. Stainless …
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 … 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
WebMay 15, 1984 · Photon stimulated desorption (PSD) refers to the ejection of ions, atoms, or molecular fragments from a surface initiated by the adsorption of single photons; to date, …
WebFeb 27, 2007 · The photon-stimulated desorption (PSD) of O+ ions from the alpha-oxygen phase on Mo(100) has been monitored through and above the Mo L1(2s) absorption edge (2866 eV) and is compared to the ... is email part of social mediaWebThe 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 ... is email written communicationWebJun 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 … is emaildl.att-mail.com legitWebApr 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 ... is email social sellingWebJul 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 … is emailer a wordWeb(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 ... is emailinfo.bestbuy.com legitWebMay 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. ryan wind attorney