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Exact solution of the problem of quasineutral expansion into vacuum of a localized collisionless plasma with cold ions

  • Plasma, Gases
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Abstract

An analytical solution of the Vlasov equation for the electrons and the hydrodynamic equations for the ions in a self-consistent electric field is constructed in the quasineutral approximation. This solution is valid for a finite electron-to-ion mass ratio. It permits describing the expansion into vacuum of a collisionless plasma with cold ions and arbitrary initial electron velocity distribution, forming a plasmoid that is bounded and, in the general case, spherically asymmetric in space.

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Authors and Affiliations

  1. Institute of Applied Physics, Russian Academy of Sciences, 603600, Nizhnii Novgorod, Russia

    D. S. Dorozhkina & V. E. Semenov

Authors
  1. D. S. Dorozhkina
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  2. V. E. Semenov
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Additional information

Pis’ma Zh. Éksp. Teor. Fiz. 67, No. 8, 543–547 (25 April 1998)

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Dorozhkina, D.S., Semenov, V.E. Exact solution of the problem of quasineutral expansion into vacuum of a localized collisionless plasma with cold ions. Jetp Lett. 67, 573–578 (1998). https://doi.org/10.1134/1.567728

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  • DOI: https://doi.org/10.1134/1.567728

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