Line shapes of atomic hydrogen in hollow-cathode discharges
- 1 August 1984
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 9 (8) , 338-340
- https://doi.org/10.1364/ol.9.000338
Abstract
Emission lines of atomic hydrogen produced in the hollow cathode of an electric glow discharge are found to have articulated line shapes indicating three quite different excitation mechanisms for the emitting atoms. Particularly striking is the extensive development of the far wings, which have Gaussian line shapes with FWHM values attaining 10 cm−1 or more. This corresponds to an atomic kinetic energy greater than 100 eV and suggests an origin for such energy in the cathode-fall region.Keywords
This publication has 4 references indexed in Scilit:
- Elliptic Polarization of Balmer Radiation from Low-Energy Grazing-Incidence Collisions of Hydrogen Ions on SurfacesPhysical Review Letters, 1978
- Dissociative excitation of H2: Spectral line shapes and electron impact cross sections of the Balmer linesThe Journal of Chemical Physics, 1976
- Dissociative excitation of H2 by electron impact: Translational spectroscopy of long lived high Rydberg fragment atomsThe Journal of Chemical Physics, 1975
- Hydrogen Stark-Broadening TablesThe Astrophysical Journal Supplement Series, 1973