Optogalvanic study of excited H atoms in a dc glow discharge
- 15 May 1985
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 46 (10) , 938-940
- https://doi.org/10.1063/1.95827
Abstract
A cw dye laser operating at 6563 Å has been used to measure Doppler broadened absorption profiles of atomic hydrogen in a glow discharge using optogalvanic detection. In the cathode fall region, neutral hydrogen atoms were observed having kinetic energies >140 eV. In the negative glow and positive column average kinetic energies correspond more nearly to thermal velocities.Keywords
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