Abstract
The paper describes the effect of the finite “temperature” Tℒ of an azimuthal electron beam on plasma stability. Only instabilities for which the longitudinal macroscopic velocity of the beam is of no importance are discussed. It is shown that at the limit of applicability\(T_ \bot \approx \tfrac{1}{2}MV_\varphi ^2 \) the weak and strong inhomogeneity approximations give the same results.
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Jungwirth, K. Plasma instabilities excited by an azimuthal electron beam. Czech J Phys 18, 629–634 (1968). https://doi.org/10.1007/BF01691014
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DOI: https://doi.org/10.1007/BF01691014