Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8133880 | Icarus | 2018 | 6 Pages |
Abstract
This paper presents the first experimental sputtering yields for sulphur ions with energies between 10Â keV and 140Â keV irradiating water ice films on a microbalance. The measured sputtering yields exceed theoretical predictions based on other ion species by a factor of 2 to 3 for most energies. Moreover, the sputtering yield of SF+ molecules is compared to the yield of atomic species S+ and F+. As found for atomic versus molecular oxygen, the sputtering yield caused by molecules is two times higher than expected. Finally, the implications of the enhanced sulphur sputtering yield for Europa's atmosphere are discussed.
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Space and Planetary Science
Authors
A. Galli, A. Vorburger, P. Wurz, R. Cerubini, M. Tulej,