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Current issue   Ukr. J. Phys. 2014, Vol. 58, N 1, p.26-31


Anisimov I.O., Soroka S.V.

Radio Physics Faculty, Taras Shevchenko National University of Kyiv
(4g, Prosp. Glushkova, Kyiv 03022, Ukraine; e-mail: ioa@univ.kiev.ua)

Formation of a Density Jump in the Inhomogeneous Isothermal Plasma Interacting with Modulated Electron Beam

Section: Plasmas and gases
Original Author's Text: English

Abstract: The results of analytical estimation and numerical simulation of the interaction of the inhomogeneous isothermal plasma with a modulated electron beam are presented. The formation of a fuzzy jump of the plasma density in the late phase of the interaction in a region, where the local plasma resonance point initially existed, is demonstrated. The jump is moving to the dense plasma, when the current density amplitude of the beam is large.

Key words: modulated electron beam, local plasma resonance region, ponderomotive force, inhomogeneous plasma.