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Diagnostics of Hot Electron Component Escaping from Dense Nonequilibrium Plasma of Continuous ECR Discharge

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Abstract

The energy distribution of hot electrons escaping from the plasma of the ion source based on the discharge ignited under conditions of electron cyclotron resonance (ECR) was studied experimentally. The measurements were performed in wide ranges of microwave heating powers and neutral gas pressures. The facility under study is capable of providing uniquely high unit energy input into the plasma confined in the quasi-gas-dynamic (collisional) regime. In the course of the experiments, the diagnostics was performed of microwave radiation generated by the hot fraction of electrons escaping from the plasma. The regimes were discovered, in which the conditions are satisfied for the development of kinetic instabilities in the ECR discharge plasma. The energies are determined of electrons that cause the development of instabilities of this type, which are characterized by bursts of microwave radiation.

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Funding

This work was supported by the Russian Science Foundation (project no. 21-12-00262).

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Authors and Affiliations

  1. Institute of Applied Physics, Russian Academy of Sciences, 603950, Nizhny Novgorod, Russia

    E. M. Kiseleva, M. E. Viktorov, V. A. Skalyga, I. V. Izotov, S. S. Vybin, A. V. Polyakov & A. F. Bokhanov

  2. Lobachevsky State University of Nizhny Novgorod, 603950, Nizhny Novgorod, Russia

    E. M. Kiseleva, M. E. Viktorov, V. A. Skalyga, I. V. Izotov, S. S. Vybin & A. V. Polyakov

Authors
  1. E. M. Kiseleva
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  2. M. E. Viktorov
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  3. V. A. Skalyga
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  4. I. V. Izotov
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  5. S. S. Vybin
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  6. A. V. Polyakov
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  7. A. F. Bokhanov
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Corresponding author

Correspondence to E. M. Kiseleva.

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The authors declare that they have no conflicts of interest.

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Translated by I. Grishina

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Kiseleva, E.M., Viktorov, M.E., Skalyga, V.A. et al. Diagnostics of Hot Electron Component Escaping from Dense Nonequilibrium Plasma of Continuous ECR Discharge. Plasma Phys. Rep. 49, 449–453 (2023). https://doi.org/10.1134/S1063780X23600111

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  • DOI: https://doi.org/10.1134/S1063780X23600111

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