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H. Biber:
"Sputtering of Mercury and Moon Analogue Material by Solar Wind Ions";
Vortrag: Seminar Institut für Allgemeine Physik (IAP), TU Wien; 16.11.2021.

In the harsh space environment, bodies are continuously exposed to a variety of impactors. The solar wind, a constant stream of ions originating from the sun is one of those. It severely alters the surface properties of planets, moons and asteroids and leads to the emission of particles due to a process called sputtering. This ejection of particles due to impingement of the solar wind is investigated in detail, focusing not only on the total emission of particles, but also on the spatial distribution of ejecta. For this purpose, a catching quartz crystal microbalance technique is used. It furthermore allows for comparison between amorphous analogue films often used for sputtering investigations with realistic, polycrystalline mineral samples. These indicate that amorphous films are well suited for sputtering experiments with planetary analogue samples.