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- W2093751013 abstract "Abstract Sputtering experiments were performed with 70 to 300 keV H+, He+ and Ar+ ions impinging on KC1, KBr and Kl. The alkali halide samples are prepared as polycrystalline layers of about 2500 Å thickness, deposited on carbon-aluminium backings. During the ion bombardment the targets are kept at elevated temperatures between 50 and 300°C, in order to study the temperature dependence of sputtering. During the irradiation the removal of halogen and sodium is simultaneously observed by Rutherford backscattering. The present results are (i) preferential sputtering of the halogen atoms, (ii) temperature dependent sputtering yields with 0.2 eV activation energy, (iii) sputtering yields proportional to the electronic stopping power, rather than the nuclear stopping power, and (iv) sputtering yields orders of magnitude higher than estimated by elastic collision cascade theories. These findings can be interpreted by a Pooley process with subsequent migration of the interstitial halogen atom to the surface." @default.
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- W2093751013 date "1982-01-01" @default.
- W2093751013 modified "2023-09-25" @default.
- W2093751013 title "Sodium halide sputtering by H+, He+, Ar+ ions" @default.
- W2093751013 doi "https://doi.org/10.1080/00337578208222996" @default.
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