Abstract
The features of erosion of the surface of point field electron emitters bombarded by helium ions were studied. An analysis of the ion-bombardment-induced atomic-scale surface roughness showed evidence of a nondynamic character of the surface atom displacement for the primary ion energies below a threshold for the stable Frenkel pair formation and cathode sputtering. A quasi-static mechanism of the surface erosion is considered, according to which the process is related to the displacement of metal atoms into low-coordinated positions upon evolution of the energy of formation of interstitial helium atoms.
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Translated from Pis’ma v Zhurnal Tekhnichesko\(j_k \sim 1/\sqrt[4]{\tau }\) Fiziki, Vol. 27, No. 18, 2001, pp. 71–77.
Original Russian Text Copyright © 2001 by Mazilova, Mikha\(j_k \sim 1/\sqrt[4]{\tau }\)lovski\(j_k \sim 1/\sqrt[4]{\tau }\), Ksenofontov.
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Mazilova, T.I., Mikhailovskii, I.M. & Ksenofontov, V.A. Radiation-stimulated erosion of field electron emitters. Tech. Phys. Lett. 27, 789–791 (2001). https://doi.org/10.1134/1.1407361
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DOI: https://doi.org/10.1134/1.1407361