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Pisma v Zhurnal Tekhnicheskoi Fiziki, 2012, Volume 38, Issue 6, Pages 29–36
(Mi pjtf8800)
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This article is cited in 13 scientific papers (total in 13 papers)
Evolution of geodesic acoustic mode in ohmic H-mode in TUMAN-3M tokamak
L. G. Askinazea, M. I. Vildjunasa, N. A. Zhubra, A. D. Komarova, V. A. Korneva, S. V. Krikunova, L. I. Krupnikb, S. V. Lebedeva, V. V. Rozhdestvenskiia, M. Tendlerc, A. S. Tukachinskya, S. M. Khrebtovb a Ioffe Institute, St. Petersburg
b National Science Centre Kharkov Institute of Physics and Technology
c Royal Institute of Technology, 10044, Stockholm, Sweden
Abstract:
The behavior of a geodesic acoustic mode (GAM) in the TUMAN-3M tokamak has been experimentally studied using the heavy-ion beam probing technique. Oscillations of the electric potential under the action of a GAM localized at the plasma periphery have been detected. The GAM was observed in the regime of low confinement (L-mode) with low plasma density ($\sim$ 0.8 $\times$ 10$^{19}$ m$^{-3}$) and disappeared upon the transition to a high confinement regime (H-mode). The possible role of GAM as a precursor of the improved confinement (LH-transition) is discussed.
Received: 16.11.2011
Citation:
L. G. Askinaze, M. I. Vildjunas, N. A. Zhubr, A. D. Komarov, V. A. Kornev, S. V. Krikunov, L. I. Krupnik, S. V. Lebedev, V. V. Rozhdestvenskii, M. Tendler, A. S. Tukachinsky, S. M. Khrebtov, “Evolution of geodesic acoustic mode in ohmic H-mode in TUMAN-3M tokamak”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 38:6 (2012), 29–36; Tech. Phys. Lett., 38:3 (2012), 268–271
Linking options:
https://www.mathnet.ru/eng/pjtf8800 https://www.mathnet.ru/eng/pjtf/v38/i6/p29
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