Line shapes of atomic hydrogen in hollow-cathode discharges

Journal Article · Wed Aug 01 00:00:00 EDT 1984 · Opt. Lett.; (United States)

DOI:https://doi.org/10.1364/OL.9.000338· OSTI ID:6446891

Benesch, W; Li, E

Emission lines of atomic hydrogen produced in the hollow cathode of an electric glow discharge are found to have articulated line shpes 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/sup -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.

• Research Organization: Institute for Physical Science and Technology, University of Maryland, College Park, Maryland 20742
• OSTI ID: 6446891
• Journal Information: Opt. Lett.; (United States), Journal Name: Opt. Lett.; (United States) Vol. 9:8; ISSN OPLED
• Country of Publication: United States
• Language: English

Related Subjects

640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
CATHODES
ELECTRIC DISCHARGES
ELECTRODES
ELEMENTS
EMISSION SPECTRA
ENERGY RANGE
EV RANGE
EV RANGE 100-1000
FUNCTIONS
GAUSS FUNCTION
GLOW DISCHARGES
HOLLOW CATHODES
HYDROGEN
NONMETALS
SPECTRA