Author:
Bobkov V.V.,Tishchenko L.P.,Kovtunenko Yu.I.,Skrypnyk A.O.,Gamayunova L.O.
Abstract
The processes of helium accumulation and thermal desorption for tungsten and tantalum coatings deposited on a stainless-steel substrate with an intermediate titanium layer were studied at various temperatures of the samples when irradiated with He+ ions to various fluences. The dependences of the concentration of captured helium and the form of the spectra of its thermal desorption into vacuum were found both on the fluence of He+ ions and on the temperature of the samples upon irradiation. Possible mechanisms for the accumulation and thermal desorption of helium, as well as the formation of defects in the crystal lattice of the samples, are discussed.
Publisher
Problems of Atomic Science and Technology
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