Sputtering of sulfur by kiloelectronvolt ions - Application to the magnetospheric plasma interaction with Io

Details Sputtering of sulfur by kiloelectronvolt ions - Application to the magnetospheric plasma interaction with Io Sputtering of sulfur by kiloelectronvolt ions - Application to the magnetospheric plasma interaction with Io

Apr 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987icar...70..111c&link_type=abstract

Icarus (ISSN 0019-1035), vol. 70, April 1987, p. 111-123.

Computer Science

22

Io, Ion Charge, Plasma Interactions, Satellite Atmospheres, Sputtering, Sulfur, Experiment Design, Ion Injection, Mass Spectroscopy, Planetary Magnetic Fields, Jupiter, Satellites, Sputtering, Sulfur, Magnetosphere, Plasma, Ions, Interaction, Thermal Effects, Spectra, Energy, Molecules, Plasma Torus, Io, Bombardment, Reflectance, Annealing, Abundance, Ejection, Surface, Atmosphere, Injection, Source, Sulfur Dioxide, Laboratory Studies, Experiments, Neutral Particles, Spectrometry, Chemistry, Distribution

Scientific paper

Accurate measurements of the yields, mass spectra, and energy spectra of ejected sulfur are presented based on vapor deposits of sulfur at temperatures and ion energies relevant to the plasma interaction with the surface of Io. The measured sputtering yields are much lower than previous estimates for room temperature sulfur films, but are comparable to previous measurements of low-temperature keV ion sputtering of SO2. Results suggest that if ions reach the surface of Io its atmosphere will have a nonnegligible sulfur component which is primarily S2. Comparison of injection rates determined for sulfur with those for SO2 indicates that injection from sulfur deposits contributes 13 percent to the total mass injection rate of about 2-3 x 10 to the 29th amu/sec.

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