On the Role of Runaway Electrons in Stimulating the RF Breakdown and Plasma Formation in Torsatrons Uragan-3M, Uragan-2M

I.K. Tarasov; M.I. Tarasov; V.B. Korovin; D.A. Sitnikov; E.L. Sorokovoy; A.V. Lozin; V.S. Romanov; R.O. Pavlichenko; N.V. Zamanov; A.E. Kulaga; A.N. Shapoval; M.M. Makhov; I.E. Garkusha; I.G. Goncharov; S.M. Maznichenko; V.M. Listopad; M.V. Lymar; M.V. Gnidenko

doi:10.15407/ujpe67.12.825

On the Role of Runaway Electrons in Stimulating the RF Breakdown and Plasma Formation in Torsatrons Uragan-3M, Uragan-2M

Authors

I.K. Tarasov Institute of Plasma Physics, National Science Center Kharkiv Institute of Physics and Technology
M.I. Tarasov Institute of Plasma Physics, National Science Center Kharkiv Institute of Physics and Technology
V.B. Korovin Institute of Plasma Physics, National Science Center Kharkiv Institute of Physics and Technology
D.A. Sitnikov Institute of Plasma Physics, National Science Center Kharkiv Institute of Physics and Technology
E.L. Sorokovoy Institute of Plasma Physics, National Science Center Kharkiv Institute of Physics and Technology
A.V. Lozin Institute of Plasma Physics, National Science Center Kharkiv Institute of Physics and Technology
V.S. Romanov Institute of Plasma Physics, National Science Center Kharkiv Institute of Physics and Technology
R.O. Pavlichenko Institute of Plasma Physics, National Science Center Kharkiv Institute of Physics and Technology
N.V. Zamanov Institute of Plasma Physics, National Science Center Kharkiv Institute of Physics and Technology
A.E. Kulaga Institute of Plasma Physics, National Science Center Kharkiv Institute of Physics and Technology
A.N. Shapoval Institute of Plasma Physics, National Science Center Kharkiv Institute of Physics and Technology
M.M. Makhov Institute of Plasma Physics, National Science Center Kharkiv Institute of Physics and Technology
I.E. Garkusha Institute of Plasma Physics, National Science Center Kharkiv Institute of Physics and Technology
I.G. Goncharov Institute of Plasma Physics, National Science Center Kharkiv Institute of Physics and Technology
S.M. Maznichenko Institute of Plasma Physics, National Science Center Kharkiv Institute of Physics and Technology
V.M. Listopad Institute of Plasma Physics, National Science Center Kharkiv Institute of Physics and Technology
M.V. Lymar Institute of Plasma Physics, National Science Center Kharkiv Institute of Physics and Technology
M.V. Gnidenko Institute of Plasma Physics, National Science Center Kharkiv Institute of Physics and Technology

DOI:

https://doi.org/10.15407/ujpe67.12.825

Keywords:

stellarator, torsatron, runaway electrons, radio frequency heating

Abstract

We consider a scenario of the initial stage of the RF breakdown of a working gas in torsatrons Uragan-3M and Uragan-2M and the roles of runaway electrons in this process. In our previous works, we studied only the acceleration factor of the breakdown process which occurs, when the intensity of the flow of runaway electrons increases due to the stimulation by an additional ultrahigh-frequency discharge at the front edge of a magnetic field pulse. This work attempts to describe the individual phenomena that accompany the initial stage of plasma formation in the confinement areas of torsatrons Uragan-3M and Uragan-2M in the presence of the flow of runaway electrons.

References

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Published

2023-02-14

How to Cite

Tarasov, I., Tarasov, M., Korovin, V., Sitnikov, D., Sorokovoy, E., Lozin, A., Romanov, V., Pavlichenko, R., Zamanov, N., Kulaga, A., Shapoval, A., Makhov, M., Garkusha, I., Goncharov, I., Maznichenko, S., Listopad, V., Lymar, M., & Gnidenko, M. (2023). On the Role of Runaway Electrons in Stimulating the RF Breakdown and Plasma Formation in Torsatrons Uragan-3M, Uragan-2M. Ukrainian Journal of Physics, 67(12), 825. https://doi.org/10.15407/ujpe67.12.825

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Issue

Vol. 67 No. 12 (2022)

Section

Plasma physics

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