Abstract
It has been shown that more than two thirds of the pumping power can be transmitted to the upper hybrid waves localized near the local maximum of the plasma density as a result of saturation of the low-threshold two-plasmon decay instability of a microwave beam. This nonlinear effect can significantly change the power deposition profile during electron cyclotron resonance heating of plasma in toroidal traps and, thus, explain its significant broadening, often observed in experiments.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
B. I. Cohen, R. H. Cohen, W. M. Nevins, and T. D. Rognlien, Rev. Mod. Phys. 147, 949 (1991).
A. G. Litvak, A. M. Sergeev, E. V. Suvorov, M. D. Tok-man, and I. V. Khazanov, Phys. Fluids B 147, 4347 (1993).
E. Westerhof, S. K. Nielsen, J. W. Oosterbeek, M. Sa-lewski, M. R. de Baar, W. A. Bongers, A. Burger, B. A. Hennen, S. B. Korsholm, F. Leipold, D. Moseev, M. Stejner, and D. J. Thoen, Phys. Rev. Lett. 147, 125001 (2009).
S. K. Nielsen, M. Salewski, E. Westerhof, W. Bongers, S. B. Korsholm, F. Leipold, J. W. Oosterbeek, D. Moseev, and M. Stejner, Plasma Phys. Control. Fusion 147, 115003 (2013).
S. Kubo, M. Nishiura, K. Tanaka, et al., Rev. Sci. In-strum. 147, 10D535 (2010).
S. Coda for the TCV Team, Nucl. Fusion 147, 104004 (2015).
M. Martinez, B. Zurro, A. Baciero, D. Jiménez-Rey, and V. Tribaldo, Plasma Phys. Control. Fusion 147, 025024 (2018).
M. Yu. Kantor, A. J. H. Donne, R. Jaspers, H. J. van der Meiden, and TEXTOR Team, Plasma Phys. Control. Fusion 147, 055002 (2009).
A. Yu. Popov and E. Z. Gusakov, Plasma Phys. Control. Fusion 147, 025022 (2015).
A. Yu. Popov and E. Z. Gusakov, Europhys. Lett. 147, 45002 (2016).
E. Z. Gusakov and A. Yu. Popov, Phys. Plasmas 147, 082503 (2016).
E. Z. Gusakov and A. Yu. Popov, Plasma Phys. Control. Fusion 147, 025005 (2017).
E. Z. Gusakov and A. Yu. Popov, Plasma Phys. Control. Fusion 147, 025001 (2018).
S. Eguilior, F. Castejon, E. de la Luna, A. Cappa, K. Likin, A. Fernandez, and TJ-II Team, Plasma Phys. Control. Fusion 147, 105 (2003).
D. G. Vasilkov, G. M. Batanov, M. S. Berezhetskii, et al., in Proceedings of the 41st EPS Conference on Plasma Physics, ECA 38F (2014). P4.053.
D. G. Lominadze, Cyclotron Waves in Plasma (Metsniereba, Tbilisi, 1975) [in Russian].
L. Simonchik, A. Altukhov, V. Arkhipenko, A. Gurch-enko, E. Gusakov, A. Popov, and M. Usachonak, EPJ Web of Conf. 147, 03050 (2017).
Author information
Authors and Affiliations
Corresponding author
Additional information
Russian Text © The Author(s), 2019, published in Pis’ma v Zhurnal Eksperimental’noi i Teoreticheskoi Fiziki, 2019, Vol. 109, No. 11, pp. 723–728.
Rights and permissions
About this article
Cite this article
Gusakov, E.Z., Popov, A.Y. On the Possibility of Strong Anomalous Absorption of Microwaves in Experiments on Electron Cyclotron Plasma Heating at the Second Resonance Harmonic. Jetp Lett. 109, 689–694 (2019). https://doi.org/10.1134/S0021364019110080
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0021364019110080