Brötzner, J., Biber, H. A., Jäggi N, Nenning, A., Fuchs, L., Szabo, P., Galli, A., Wurz, P., & Aumayr, F. (2024). Sputtering yields of lunar soils under solar wind ion impact. In 3S’24: Symposium on Surface Science 2024 (pp. 171–172).
E134-03 - Forschungsbereich Atomic and Plasma Physics
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Published in:
3S’24: Symposium on Surface Science 2024
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Date (published):
14-Mar-2024
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Event name:
36th Symposium on Surface Science 2024 (3S’24)
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Event date:
10-Mar-2024 - 16-Mar-2024
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Event place:
St. Christoph am Arlberg, Austria
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Number of Pages:
2
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Keywords:
sputtering; solar wind; Moon; exosphere formation; quartz crystal microbalance
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Abstract:
The Sun is the source of a multitude of processes that affect the surfaces of rocky objects and planets in the solar system. Besides thermal and electromagnetic irradiation, the solar wind is a plasma stream of mostly H + and He 2+ ions that predominantly interact with objects lacking a protective atmosphere or magnetic field. The impacts of these ions lead to surface sputtering, the liberation of material on a mostly atomic level, and thus contributes to the formation of a tenuous gas envelope called exosphere [1]. The exosphere’s properties are tightly linked to both the surface properties and the release mechanism. The exosphere therefore provides an
opportunity to study the relevant object without the need for a lander, either by optical spectroscopy from or by mass spectroscopy during flybys or in orbit. The former has been achieved, e.g., for Mercury by the MESSENGER mission [2] while more recently, ESA’s BepiColombo mission to Mercury and NASA’s Artemis program for exploration of the Moon are expected to perform new in-situ studies soon.
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Research Areas:
Materials Characterization: 20% Surfaces and Interfaces: 80%