First experimental data of sulphur ions sputtering water ice

Galli, André; Vorburger, Audrey Helena; Wurz, Peter; Cerubini, Romain Ivan Valentin; Tulej, Marek (2018). First experimental data of sulphur ions sputtering water ice. Icarus, 312, pp. 1-6. Elsevier 10.1016/j.icarus.2018.04.029

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This paper presents the first experimental sputtering yields for sulphur ions with energies between 10 keV and 140 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.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Physics Institute > Space Research and Planetary Sciences

UniBE Contributor:

Galli, André; Vorburger, Audrey Helena; Wurz, Peter; Cerubini, Romain Ivan Valentin and Tulej, Marek

Subjects:

500 Science > 530 Physics
500 Science > 520 Astronomy
600 Technology > 620 Engineering

ISSN:

0019-1035

Publisher:

Elsevier

Language:

English

Submitter:

Dora Ursula Zimmerer

Date Deposited:

16 May 2018 11:44

Last Modified:

24 May 2018 08:41

Publisher DOI:

10.1016/j.icarus.2018.04.029

BORIS DOI:

10.7892/boris.116506

URI:

https://boris.unibe.ch/id/eprint/116506

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