Cupak, C., Brandstätter, F., Cserveny, R., Troneberger, F., Biber, H. A., Fellinger, M., Redl, A., Moro, M. V., Böhm, D., Eisenmenger-Sittner, C., Mutzke, A., Primetzhofer, D., & Aumayr, F. (2023). Absence of synergistic effects in quasi-simultaneous sputtering of tungsten by Ar and D ions. Nuclear Materials and Energy, 35, Article 101435. https://doi.org/10.1016/j.nme.2023.101435
E134-03 - Forschungsbereich Atomic and Plasma Physics E134 - Institut für Angewandte Physik E138 - Institut für Festkörperphysik E138-03 - Forschungsbereich Functional and Magnetic Materials
A quartz crystal microbalance was used to experimentally study the erosion of tungsten during rapidly alternating bombardment with 2 keV argon and deuterium projectiles. A key goal was to investigate whether the mean sputtering yield of the alternating irradiation can be predicted from data for sputtering yields of single ion species. In addition, influences by residual gas pressure in the UHV experiment and variable ion fluxes have been studied. Our results show that the mean sputtering yield of irradiations with alternating ion species can be well predicted for a range of different fluence ratios as a simple superposition of individual sputtering yields, weighted by the respective relative fluences. This finding supports that no synergistic sputtering effects were relevant in the investigated low-flux regime.
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Project (external):
Euratom Reserach and Training Programme, European Union
CC BY 4.0
