Abstract
The noise amplification mode in a plasma maser with inverse geometry was obtained experimentally for the first time. It is shown that the introduction of a microwave absorber transfers the maser operating mode from the oscillator to the amplifier. In both modes, the tuning of the radiation frequency has been shown when the plasma density changes. This work is a step in the implementation of a plasma relativistic noise amplifier with a short REB pulse.
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ACKNOWLEDGMENTS
We thank S.V. Garnov for his support and provision of equipment without which an experiment would not be possible. We are also grateful to P.S. Strelkov for numerous useful discussions.
Funding
The work was supported in part by the program of the Russian Academy of Sciences no. 6 “New approaches to the production and study of extreme states of matter.”
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Translated by L. Mosina
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Ponomarev, A.V., Buleyko, A.B. & Ul’yanov, D.K. Feedback Suppression in the Plasma Relativistic Microwave Noise Amplifier with Inverse Configuration. Plasma Phys. Rep. 46, 950–953 (2020). https://doi.org/10.1134/S1063780X2009007X
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DOI: https://doi.org/10.1134/S1063780X2009007X