منابع مشابه
Photon-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...
متن کاملPhoton-stimulated desorption from chlorinated Si(111): Etching of SiCl by picosecond-pulsed laser irradiation
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...
متن کاملPhoton-stimulated desorption of Na from a lunar sample: temperature-dependent effects
We report recent results in an investigation of source mechanisms for the origin of Na atoms in tenuous planetary atmospheres, focusing on non-thermal processes. Experiments include photon stimulated desorption (PSD), electron stimulated desorption (ESD), and ion sputtering of Na atoms from the surface of a lunar basalt sample. Bombardment of the sodium covered surface by 3 keV Ar+ ions removes...
متن کاملBeam Exposure Dependence and Mechanisms of Photon-stimulated Desorption from Alkali Fluorides
Photon-stimulated desorption experiments were performed on the (001) face of LiF for photon energies near the F(2s) and Li(ls) edges (from 37 to 72 eV). There are structures in the F+ yield above the F(2s) edge which are absent in the Li+ spectrum, differences in detail in the Li+ and F+ yields near the Li(ls) edge, and considerable broadening of the desorption yields as compared to the bulk ph...
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ژورنال
عنوان ژورنال: Hyomen Kagaku
سال: 1986
ISSN: 0388-5321,1881-4743
DOI: 10.1380/jsssj.7.36