Experimental limits on the velocities of sodium atoms sputtered from solid surfaces by hydrogen ions

Details Experimental limits on the velocities of sodium atoms sputtered from solid surfaces by hydrogen ions Experimental limits on the velocities of sodium atoms sputtered from solid surfaces by hydrogen ions

Jul 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976apj...207l.141s&link_type=abstract

Astrophysical Journal, vol. 207, July 15, 1976, pt. 2, p. L141, L142. NASA-NSF-supported research.

Astronomy and Astrophysics

Astrophysics

1

Atomic Spectra, Hydrogen Ions, Io, Sodium, Sputtering, Extremum Values, Ion Beams, Relativistic Velocity, Spectral Line Width

Scientific paper

Optical emission at 589.0 nm by sodium atoms sputtered from solid targets by hydrogen molecular ions was observed, and no accompanying broadening or shifts of this line could be detected relative to that from a laboratory lamp. This allowed an upper limit of about 500,000 cm/sec on the mean speed of ejected sodium atoms to be calculated. The results are consistent with the hypothesis that the atomic sodium cloud surrounding Io is produced by this mechanism.

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