Vibrational excitation of hydrogen via recombinative desorption of atomic hydrogen gas on a metal surface

Details Vibrational excitation of hydrogen via recombinative desorption of atomic hydrogen gas on a metal surface Vibrational excitation of hydrogen via recombinative desorption of atomic hydrogen gas on a metal surface

Jan 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988phrvl..60..337h&link_type=abstract

Physical Review Letters (ISSN 0031-9007), vol. 60, Jan. 25, 1988, p. 337-340.

Physics

114

Desorption, Gas Pressure, Hydrogen Atoms, Metal Surfaces, Molecular Interactions, Vibrational Spectra, Electron Beams, Electron Energy, Electron Impact, Hydrogen Ions

Scientific paper

Recombinative desorption of atomic hydrogen on the walls of a gas cell has been observed to populate vibrational levels up to v = 9. The vibrational populations follow a Boltzmann distribution near 3000 K up to v = 3, and for higher levels the populations are well in excess of this temperature. These observations bring to light a new mechanism for vibrational excitation of H2 in volume H(-)-ion sources.

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