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solar system sputteringThe sites and materials involved in solar system sputtering of planetary surfaces are reviewed, together with existing models for the processes of sputtering. Attention is given to the interaction of the solar wind with planetary atmospheres in terms of the role played by the solar wind in affecting the He-4 budget in the Venus atmosphere, and the erosion and differentiation of the Mars atmosphere by solar wind sputtering. The study is extended to the production of isotopic fractionation and anomalies in interplanetary grains by irradiation, and to erosion effects on planetary satellites with frozen volatile surfaces, such as with Io, Europa, and Ganymede. Further measurements are recommended of the molecular form of the ejected material, the yields and energy spectra of the sputtered products, the iosotopic fractionation sputtering causes, and the possibility of electronic sputtering enhancement with materials such as silicates.
Document ID
19830039840
Document Type
Reprint (Version printed in journal)
Authors
Tombrello, T. A.
(California Institute of Technology Pasadena, CA, United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1982
Publication Information
Publication: Radiation Effects
Volume: 65
Subject Category
SPACE SCIENCES (GENERAL)
Funding Number(s)
CONTRACT_GRANT: NAGW-148
CONTRACT_GRANT: NSF PHY-79-23638
CONTRACT_GRANT: NGR-05-002-333
Distribution Limits
Public
Copyright
Other