Instability of two counter-streaming gyrating beams of electrons |
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Authors: | V Kopecký J Preinhaelter |
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Institution: | (1) Institute of Plasma Physics, Czechosl. Acad. Sci., Nademlýnská 600, Praha 9, Czechoslovakia |
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Abstract: | The linear theory of the two-beam instability of weak gyrating beams is investigated. Maximum growth rates of instabilities, instability limits and frequencies of unstable waves are numerically determined. The aperiodic instability withk
z
z0=
c(
z0 is the velocity of the beam along the magnetic field,
c is the cyclotron frequency andk
z is the longitudinal wave number) and the instability with =
c/2 and withk
z
z0=
c/2 possess greatest growth rates. Dependence of growth rates on longitudinal and transversal components of the wave vector is investigated in detail. |
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Keywords: | |
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