Influence of the safety factor variation on exitation of resonant magnetic perturbation in TOKAMAK rotating edge plasmas

  • Igor Pankratov Institute of Plasma Physics, NSC “Kharkiv Institute of Physics and Technology” https://orcid.org/0000-0001-5876-4618
  • Ivan Pavlenko Department of Physics and Technology, V.N. Karazin Kharkiv National University https://orcid.org/0000-0001-8452-6584
  • O. Pomazan Institute of Plasma Physics, NSC “Kharkiv Institute of Physics and Technology”
  • A. Omelchenko Institute of Plasma Physics, NSC “Kharkiv Institute of Physics and Technology”
Keywords: resonant magnetic perturbations, edge localized modes, plasma rotation, tokamak

Abstract

Recently the possibility of resonant excitation of pressure perturbation by external helical magnetic perturbations near the rotating plasma edge was shown taking into consideration the finite plasma conductivity. In present paper the influence of the small safety factor variation on the pressure perturbation and on the plasma current response is studied. This phenomenon may explain the existence of the small window of safety factor values where ELMs were completely eliminated. The possibility to control the plasma current response to penetration of external helical resonant magnetic perturbations into the edge plasmas is shown. The investigation is carried out in the frame of one-fluid MHD.

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References

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Published
2013-06-01
Cited
How to Cite
Pankratov, I., Pavlenko, I., Pomazan, O., & Omelchenko, A. (2013). Influence of the safety factor variation on exitation of resonant magnetic perturbation in TOKAMAK rotating edge plasmas. East European Journal of Physics, (1059(3), 46-50. Retrieved from https://periodicals.karazin.ua/eejp/article/view/12926
Issue
No. 1059(3) (2013): The Journal of Kharkiv National University, Physical series "Nucleus, Particles, Fields", ISSN 2221-7754
Section
Original Papers

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