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Dynamics of Plasma in a Plasma-Microwave Amplifier under the Action of the Miller’s Force


In this paper, we consider the dynamics of plasma in a high-power plasma-microwave amplifier with a submicrosecond pulse duration. It is shown that, in the case of a linear mode (a short system length or a small input signal level), a discontinuity in the plasma density can form near the output boundary due to the escape of particles towards the amplifier input, which can lead to radiation breakdown. When the amplifier operates in the saturation mode, the plasma displacement has a multidirectional character, and a density discontinuity is not formed. At an increase in the initial plasma density, the effect of its pushing out weakens.

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  1. In a plasma amplifier with a thin tubular magnetized plasma, this is the plasma cable wave.


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This work was supported by the Russian Foundation for Basic Research, project no. 19-08-00625.

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Correspondence to I. N. Kartashov or M. V. Kuzelev.

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Translated by A. Ivanov

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Kartashov, I.N., Kuzelev, M.V. Dynamics of Plasma in a Plasma-Microwave Amplifier under the Action of the Miller’s Force. High Temp 59, 150–154 (2021).

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