Abstract
The most probable scenario for the saturation of the low-threshold two-plasmon parametric decay instability of an electron cyclotron extraordinary wave has been analyzed. Within this scenario two upperhybrid plasmons at frequencies close to half the pump wave frequency radially trapped in the vicinity of the local maximum of the plasma density profile are excited due to the excitation of primary instability. The primary instability saturation results from the decays of the daughter upper-hybrid waves into secondary upperhybrid waves that are also radially trapped in the vicinity of the local maximum of the plasma density profile and ion Bernstein waves.
Similar content being viewed by others
References
V. P. Silin, Parametrical Effect of High Power Radiation on Plasma (Nauka, Moscow, 1973) [in Russian].
M. N. Rosenbluth, Phys. Rev. Lett. 29, 565 (1972).
A. D. Piliya, Sov. Phys. JETP 37, 629 (1973).
M. Porkolab and B. I. Cohen, Nucl. Fusion 28, 239 (1988).
A. G. Litvak, A. M. Sergeev, E. V. Suvorov, et al., Phys. Fluids B 5, 4347 (1993).
F. S. McDermott, G. Bekefi, K. E. Hackett, et al., Phys. Fluids 25, 1488 (1982).
D. G. Bulyginsky, V. V. Dyachenko, M. A. Irzak, et al., Plasma Phys. Rep. 2, 138 (1986).
G. M. Batanov et al., Sov. J. Plasma Phys. 15, 84 (1989).
H. P. Laqua, V. Erckmann, H. J. Hartfuß, and W7-AS Team ECRH Group, Phys. Rev. Lett. 78, 3467 (1997).
V. Shevchenko, G. Cunningham, A. Gurchenko, et al., Fusion Sci. Technol. 52, 202 (2007).
E. Z. Gusakov and A. V. Surkov, Plasma Phys. Control. Fusion 49, 631 (2007).
J. W. Oosterbeek, A. Burger, E. Westerhof, et al., Rev. Sci. Instrum. 79, 093503 (2008).
E. Westerhof, S. Nielsen, J. W. Oosterbeek, et al., Phys. Rev. Lett. 103, 125001 (2009).
S. K. Nielsen, M. Salewski, E. Westerhof, et al., Plasma Phys. Control. Fusion 55, 115003 (2013).
V. Furtula et al., Rev. Sci. Instrum. 83, 013507 (2012).
S. K. Nielsen et al., in Proceedings of the 9th Workshop on Strong Microwaves and Terahertz Waves: Sources and Applications, Nizhny Novgorod, Russia, 2014.
S. Kubo et al., Rev. Sci. Instrum. 81, 10D535 (2010).
A. N. Karpushov, B. P. Duval, T. P. Goodman, et al., in Proceedings of the 33rd EPS Conference on Plasma Physics, Rome, Italy, June 19–23, 2006, Vol. 30I, p. 1.152.
D. Rapisarda, B. Zurro, V. Tribaldos, et al., Plasma Phys. Control. Fusion 49, 309 (2007).
V. F. Andreev et al., Plasma Phys. Control. Fusion 46, 319 (2004).
E. Z. Gusakov and A. Yu. Popov, JETP Lett. 91, 655 (2010).
E. Z. Gusakov and A. Yu. Popov, Phys. Rev. Lett. 105, 115003 (2010).
E. Z. Gusakov and A. Yu. Popov, Nucl. Fusion 51, 073028 (2011).
E. Z. Gusakov and A. Yu. Popov, JETP Lett. 94, 277 (2011).
A. Yu. Popov, E. Z. Gusakov, and A. N. Saveliev, JETP Lett. 96, 164 (2012).
E. Gusakov and A. Popov, Europhys. Lett. 99, 15001 (2012).
E. Z. Gusakov, A. Yu. Popov, and A. N. Saveliev, Plasma Phys. Control. Fusion 56, 015010 (2014).
A. Yu. Popov and E. Z. Gusakov, J. Exp. Theor. Phys. 120, 147 (2015).
A. Yu. Popov and E. Z. Gusakov, Plasma Phys. Control. Fusion 57, 025022 (2015).
A. Yu. Popov, E. Z. Gusakov, A. N. Saveliev, and E. V. Sysoeva, in Proceedings of 25th IAEA Fusion Energy Conference FEC 2014, St.-Petersburg, Russia, 2014.
A. Yu. Popov and E. Z. Gusakov, J. Exp. Theor. Phys. 121, 362 (2015).
E. Z. Gusakov and V. I. Fedorov, Sov. J. Plasma Phys. 5, 463 (1979).
A. I. Akhiezer, I. A. Akhiezer, R. V. Polovin, et al., Plasma Electrodynamics (Nauka, Moscow, 1974; Elsevier Science, Amsterdam, 2013).
M. Yu. Kantor, Plasma Phys. Control. Fusion 51, 055002 (2009).
M. Yu. Kantor, G. Bertschinger, P. Bohm, et al., in Proceedings of the 36th EPS and Plasma Physics, Sofia, Bulgaria, 2009 (2009), ECA, Vol. 33D, p. 1.184.
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © E.Z. Gusakov, A.Yu. Popov, M.A. Irzak, 2016, published in Zhurnal Eksperimental’noi i Teoreticheskoi Fiziki, 2016, Vol. 123, No. 4, pp. 833–845.
Rights and permissions
About this article
Cite this article
Gusakov, E.Z., Popov, A.Y. & Irzak, M.A. On a new scenario for the saturation of the low-threshold two-plasmon parametric decay instability of an extraordinary wave in the inhomogeneous plasma of magnetic traps. J. Exp. Theor. Phys. 123, 723–734 (2016). https://doi.org/10.1134/S1063776116110108
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1063776116110108