Abstract
Spontaneous excitation of a dust-particle density wave is observed in a dust cloud levitating in the region of the diffused edge of an rf inductive low-pressure gas-discharge plasma. The main physical parameters of this wave and of the background plasma are measured. The analytic model proposed for the observed phenomenon is based on the theory of dust sound and successfully correlates with experimental data in a wide range of experimental conditions. The effect of variable charge of dust particles on the evolution of the observed dust-plasma instability is studied analytically. It is shown that the necessary condition for the development of the dust-acoustic instability is the presence of a dc electric field in the dust cloud region.
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Translated from Zhurnal Éksperimental’no\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) i Teoretichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 122, No. 3, 2002, pp. 500–512.
Original Russian Text Copyright © 2002 by Zobnin, Usachev, Petrov, Fortov.
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Zobnin, A.V., Usachev, A.D., Petrov, O.F. et al. Dust-acoustic instability in an inductive gas-discharge plasma. J. Exp. Theor. Phys. 95, 429–439 (2002). https://doi.org/10.1134/1.1513815
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DOI: https://doi.org/10.1134/1.1513815