On the Theory of Beam-Plasma Instability in the Nonstationary Plasma
- Authors: Kartashov I.N.1, Kuzelev M.V.1
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Affiliations:
- Moscow State University, Faculty of Physics
- Issue: Vol 63, No 8 (2018)
- Pages: 922-927
- Section: Radio Phenomena in Solids and Plasma
- URL: https://journals.rcsi.science/1064-2269/article/view/200060
- DOI: https://doi.org/10.1134/S1064226918080089
- ID: 200060
Cite item
Abstract
The beam instability in the plasma with density slowly varying with time has been investigated using the potential approximation. It has been shown that a frequency shift occurs in the amplified signal propagating in such an electrodynamic system; analytical relations for determining the value of this shift have been obtained. It is demonstrated that the frequency is shifted most strongly as the plasma density decreases, when the Langmuir frequency of plasma electrons approaches the signal frequency and the instability increment increases with time.
About the authors
I. N. Kartashov
Moscow State University, Faculty of Physics
Author for correspondence.
Email: igorkartashov@mail.ru
Russian Federation, Moscow, 119991
M. V. Kuzelev
Moscow State University, Faculty of Physics
Email: igorkartashov@mail.ru
Russian Federation, Moscow, 119991