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

E. M. Kiseleva; Киселёва Е. М.; M. E. Viktorov; Викторов М. Е.; V. A. Skalyga; Скалыга В. А.; I. V. Izotov; Изотов И. В.; S. S. Vybin; Выбин С. С.; A. V. Polyakov; Поляков А. В.; A. F. Bokhanov; Боханов А. Ф.

doi:10.31857/S0367292122601266

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

Authors: Kiseleva E.M.¹^,2, Viktorov M.E.¹^,2, Skalyga V.A.¹^,2, Izotov I.V.¹^,2, Vybin S.S.¹^,2, Polyakov A.V.¹^,2, Bokhanov A.F.¹
Affiliations:
1. Institute of Applied Physics, Russian Academy of Sciences
2. Lobachevsky State University of Nizhny Novgorod
Issue: Vol 49, No 4 (2023)
Pages: 354-358
Section: PLASMA DIAGNOSTICS
URL: https://ogarev-online.ru/0367-2921/article/view/139578
DOI: https://doi.org/10.31857/S0367292122601266
EDN: https://elibrary.ru/FKKUTC
ID: 139578

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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.

Keywords

microwave radiation, electron cyclotron resonance (ECR), ECR ion sources, electron energy distribution function, plasma diagnostics, kinetic instabilities

References

Geller R. // Electron Cyclotron Resonance Ion Sources and ECR Plasmas . Bristol.: Institute of Physics, 1996.
Zhu L., Wu W., Yu S.R., Sun L.T., Chen Y.Y., Mei E.M., Ni D.S., Du Z.Y. // Cryogenics. 2020. V. 112. 103192.https://doi.org/10.1016/j.cryogenics.2020.103192
Shalashov A.G., Gospodchikov E.D., Izotov I.V., Mansfeld D.A., Skalyga V.A., Tarvainen O. // Phys. Rev. Lett. 2018. V. 120. 155001. https://doi.org/10.1103/PhysRevLett.120.155001
Fischer R., Dose V. // Plasma Phys. Control. Fusion. 1999. V. 41. P. 1109. https://doi.org/10.1088/0741-3335/41/9/304
Vinogradov I.P. // Plasma Sources Sci. Technol. 1999. V. 8. P. 299. https://doi.org/10.1088/0963-0252/8/2/311
Hemmers D., Kempkens H., Uhlenbusch J. // J. Phys. D: Appl. Phys. 2001. V. 34. P. 2315. https://doi.org/10.1088/0022-3727/34/15/311
Lagarde T., Arnal Y., Lacoste A., Pelletier J. // Plasma Sources Sci. Technol. 2001. V. 10. P. 181. https://doi.org/10.1088/0963-0252/10/2/308
Golubev S.V., Izotov I.V., Mansfeld D.A., Semenov V.E. // Review of Scientific Instruments. 2012. V. 83. № 2. https://doi.org/10.1063/1.3673012
Skalyga V.A., Bokhanov A.F., Golubev S.V., Izotov I.V., Kazakov M.Yu., Kiseleva E.M., Lapin R.L., Razin S.V., Shaposhnikov R.A., Vybin S.S. // Review of Scientific Instruments. 2019. V. 90. № 12. https://doi.org/10.1063/1.5128489
Skalyga V.A., Golubev S.V., Izotov I.V. et al. // EPJ Web Conf. 2018. V. 187. 01018 https://doi.org/10.1051/epjconf/201818701018
Alain Lapierre, Janilee Benitez, Masahiro Okamura, Damon Todd, Daniel Xie, Yine Sun // arXiv. 2022. https://doi.org/10.48550/arXiv.2205.12873
Pastukhov V.P. // Nucl. Fusion.1974. V. 14. № 3. P. 68.
Semenov V.E., Turlapov A.V. // Physical Review E. 1998. V. 57. № 5. P. 5937.
Linand Y., Joy D.C. // Surf. Interf. Anal. 2005. V. 37. P. 895
Tabata T. // Proceedings of the Fourteenth EGS Users’ Meeting in Japan, KEK, Tsukuba, Japan, 7–9 August 2007. https://doi.org/10.13140/2.1.3458.9125