Auger decay mechanism in photon-stimulated desorption from sodium fluoride
نویسندگان
چکیده
منابع مشابه
Auger stimulated ion desorption of negative ions via K-capture radioactive decay.
We report on Auger stimulated ion desorption via Coulomb explosion from surface self-assembled alkylthiol and fluorocarbon molecular layers, triggered by K-capture decay of an imbedded radioactive 55Fe atom. The charge state of the ejecta is determined by charge exchange in binary atomic collisions in bulk and electron tunneling outside the solid, as well as by fragmentation of electronically e...
متن کاملPhoton-stimulated desorption and x-ray standing waves
Introduction X-ray standing waves (XSW) using electrons and fluorescence photons as secondary signals has become a standard technique to determine adsorbate structures. However, when a sample is irradiated by intense light, desorption of ions is also a frequently observed phenomenon which is known as photon-stimulated desorption (PSD). But, this signal is of a fundamentally different physical n...
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Background & Aims: The present study compared fluoride uptake into enamel from sodium fluoride 0.05% gel and American Dental Association approved fluoride gel (Stannous fluoride 0.4% , Sultan Co.) when used on healthy enamel of the intact teeth. Methods: In an experimental study, 30 intact teeth extracted for orthodontic purposes were randomly assigned into two groups of 15 teeth. The teeth wer...
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Tomoyuki Kirimura,1,2,* Ken-ichi Shudo,1,2,† Yujiro Hayashi,2 Yoshihito Tanaka,2 Tetsuya Ishikawa,2 and Masatoshi Tanaka1 1Department of Physics, Faculty of Engineering, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan 2RIKEN SPring-8 Center, 1-1-1, Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan Received 11 August 2005; revised manuscript received 26 October...
متن کاملElectron- and photon-stimulated desorption of atomic hydrogen from radiation-modified alkali halide surfaces
The desorption yields of excited hydrogen atoms from the surfaces of KCl, KBr, NaCl, NaF, and LiF have been measured as a function of incident photon and electron energy and flux, time of irradiation, dosing pressure of H2 and sample temperature. As these surfaces are exposed to H2 gas during electron or photon bombardment, the fluorescence from excited hydrogen atoms ejected from the surface i...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 1983
ISSN: 0163-1829
DOI: 10.1103/physrevb.28.4793