Observation of nonthermal electron tails in an rf excited argon magnetoplasma
Authors:
- 1 April 1991
- journal article
- conference paper
- Published by AIP Publishing in Physics of Fluids B: Plasma Physics
- Vol. 3 (4) , 869-874
Abstract
Nonthermal beamlike electron tails have been observed in an argon magnetoplasma excited by rf without electron beam injecting. The plasma is highly ionized (∼100%) with central density ∼1014 cm−3, and is based on the excitation of helicon waves. Nonthermal electron tails are observed at the beginning of the plasma pulse and last for about 1 msec. There is a maximum in the electron energy distribution at 30–80 eV and a minimum at 20–30 eV. The mechanism responsible for driving this beamlike tail is not yet known.Keywords
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