Radio-Frequency Ion Source Producing Vibrationally Excited H3+

1 January 1965

journal article
research article
Published by AIP Publishing in Review of Scientific Instruments

Vol. 36 (1) , 41-44
https://doi.org/10.1063/1.1719321

Abstract

H₃⁺ ions gave an abnormally high cross section for dissociation to H₂⁺ and a high secondary‐electron yield on copper‐beryllium. These ions were produced by a hydrogen ion source which is excited by a radio frequency voltage and is aperture extracted. To produce these ions this source was operated at low pressure and in a high magnetic field. It is assumed that such ions are vibrationally excited. Production of the various ions was studied as a function of source magnet field, rf voltage, and geometry. In addition to H⁺, H₂⁺, and H₃⁺, H₅⁺ was detected. The secondary‐electron yield of H₂⁺ from H₃⁺ on H₂ was measured for different source conditions.

Keywords

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