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Ion-acoustic solitons excited by a single grip

Published online by Cambridge University Press:  13 March 2009

S. Watanabe
S. Watanabe
Affiliation:
Laboratoire do Physique des Plasmas (Laboratoire associé au CNRS), UnivorsitÉ de Paris-Sud, Centre d' Orsay, 91405, Orsay
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Abstract

Ion-acoustic solitons are observed to form when a large-amplitude positive step voltage is applied to a single mesh grid. For the formation of the soliton, the sheath about the grid plays an important rôle. The number and the amplitude of the solitons are examined experimentally as a function of the nonlinear index, and are compared with theory. The observed width and the velocity of the soliton are well explained by the theory of a hot-ion fluid and Boltzmann electrons. The phase delay of two solitons by a head-on collision is also observed.

Type
Research Article
Information
Journal of Plasma Physics , Volume 14 , Issue 2 , October 1975 , pp. 353 - 364
Copyright
Copyright © Cambridge University Press 1975

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