Spectral signature of the beam plasma discharge

Details Spectral signature of the beam plasma discharge Spectral signature of the beam plasma discharge

Jul 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988jgr....93.7586h&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 93, July 1, 1988, p. 7586-7590.

Physics

4

Beam Plasma Amplifiers, Nitrogen, Nitrogen Ions, Optical Emission Spectroscopy, Plasma Jets, Spectral Signatures, Auroral Ionization, Electron Acceleration, Electron Beams, Electrophotometry, Particle Accelerators, Plasma Diagnostics, Plasma Spectra, Spectral Energy Distribution, Television Systems

Scientific paper

The effect of the beam current on the spectrum of a beam plasma discharge (BPD) in N2 at 50, 100, or 400 microtorr is investigated experimentally in the 2.6-m chamber described by Bernstein et al. (1983). The results are presented graphically and discussed in detail. An increase in the ratio of first positive N2 emissions to first negative N2(+) emissions at BPD onset is shown to disappear at currents above the BPD threshold and is attributed to a large population of suprathermal electrons.

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