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Mechanism for the suppression of lower hybrid current drive in the FT-2 tokamak

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Abstract

The mechanism for the switching off of the lower hybrid current drive in the FT-2 tokamak is studied. It is shown that the lower hybrid wave-driven current is switched off when a parametric instability, which causes lower hybrid waves to decay into slowed waves interacting with plasma ions, develops at the plasma periphery. The onset of a parametric instability is attributed to the fact that the electron temperature falls off in the course of discharge, thereby lowering the instability threshold.

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References

  1. V. N. Budnikov, L. A. Esipov, and M. I. Irzak, Pis’ma Zh. Tekh. Fiz. 16(13), 15 (1990) [Sov. Tech. Phys. Lett. 16, 417 (1990)].

    Google Scholar 

  2. V. N. Budnikov and M. I. Irzak, Plasma Phys. Controlled Fusion 38(12A), 135 (1996).

    Article  ADS  Google Scholar 

  3. V. N. Budnikov, V. V. Bulanin, A. D. Gurchenko, et al., Fiz. Plazmy 24(3), 262 (1998) [Plasma Phys. Rep. 24, 233 (1998)].

    Google Scholar 

  4. C. Karney, Phys. Fluids 22, 2188 (1979).

    ADS  MATH  Google Scholar 

  5. L. A. Esipov, I. E. Sakharov, E. O. Chechik, et al., Zh. Tekh. Fiz. 67(4), 48 (1997) [Tech. Phys. 42, 367 (1997)].

    Google Scholar 

  6. M. Yu. Kantor, A. A. Borevich, V. N. Budnikov, et al., in Proceedings of 26th European Conference on Controlled Fusion and Plasma Physics, Maastricht, 1999, p. 1789.

  7. M. Porkolab, Phys. Fluids 20, 2058 (1977).

    Article  ADS  Google Scholar 

  8. V. N. Budnikov, L. A. Esipov, M. I. Irzak, et al., Pis’ma Zh. Éksp. Teor. Fiz. 48(9), 480 (1988) [JETP Lett. 48, 522 (1988)].

    Google Scholar 

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Authors and Affiliations

  1. Ioffe Institute for Physics and Technology, Russian Academy of Sciences, Politekhnicheskaya ul. 26, St. Petersburg, 194021, Russia

    V. N. Budnikov, V. V. D’yachenko, P. R. Goncharov, V. B. Ermolaev, L. A. Esipov, E. R. Its, M. Yu. Kantor, D. V. Kuprienko, S. I. Lashkul, K. A. Podushnikova, I. E. Sakharov, E. O. Chechik & S. V. Shatalin

  2. St. Petersburg State Technical University, Politekhnicheskaya ul. 29, St. Petersburg, 195251, Russia

    V. N. Budnikov, V. V. D’yachenko, P. R. Goncharov, V. B. Ermolaev, L. A. Esipov, E. R. Its, M. Yu. Kantor, D. V. Kuprienko, S. I. Lashkul, K. A. Podushnikova, I. E. Sakharov, E. O. Chechik & S. V. Shatalin

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  1. V. N. Budnikov
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  2. V. V. D’yachenko
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  3. P. R. Goncharov
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  4. V. B. Ermolaev
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  5. L. A. Esipov
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  6. E. R. Its
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  7. M. Yu. Kantor
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  8. D. V. Kuprienko
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  9. S. I. Lashkul
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  10. K. A. Podushnikova
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  11. I. E. Sakharov
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  12. E. O. Chechik
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  13. S. V. Shatalin
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Additional information

__________

Translated from Pis’ma v Zhurnal Tekhnichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) Fiziki, Vol. 26, No. 2, 2000, pp. 41–46.

Original Russian Text Copyright © 2000 by Budnikov, D’yachenko, Goncharov, Ermolaev, Esipov, Its, Kantor, Kuprienko, Lashkul, Podushnikova, Sakharov, Chechik, Shatalin.

Deceased.

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Budnikov, V.N., D’yachenko, V.V., Goncharov, P.R. et al. Mechanism for the suppression of lower hybrid current drive in the FT-2 tokamak. Tech. Phys. Lett. 26, 64–66 (2000). https://doi.org/10.1134/1.1262743

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  • DOI: https://doi.org/10.1134/1.1262743

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