Faculty of Physics
M.V.Lomonosov Moscow State University
Regular Article

About influence of electrons velocities spread in the beam on the mechanism of Cherenkov beam-plasma interaction

I.N. Kartashov, M.V. Kuzelev

Moscow University Physics Bulletin 2016. 71. N 6. P. 537

  • Article

In linear potential approach instability of an electron beam in cold plasma for various distribution functions of electrons of a beam on velocities is considered. It is shown that at increase in spread of electrons of a beam on velocities there is a transformation of the mechanism of beam instability in plasma: the hydrodynamic one-particle mode of instability transforms into the hydrodynamic collective mode, or into the one-particle kinetic mode. Analytically and numerically instability growth rates in various modes are defined.

Received: 2016 May 25
Approved: 2017 January 24
52.35.-g Waves, oscillations, and instabilities in plasmas and intense beams
I.N. Kartashov, M.V. Kuzelev
Department of physical electronics, Faculty of Physics, M.V.Lomonosov Moscow State University. Moscow 119991, Russia
Issue 6, 2016

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