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First Counter-NBI Experiments on the Globus-M Tokamak |
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| Authors: | N. N. Bakharev F. V. Chernyshev V. I. Davydenko P. R. Goncharov V. K. Gusev G. S. Kurskiev A. D. Melnik V. B. Minaev M. I. Mironov M. I. Patrov Yu. V. Petrov N. V. Sakharov P. B. Shchegolev A. D. Sladkomedova A. Yu. Telnova S. Yu. Tolstyakov G. V. Zadvitskiy |
| Affiliation: | 1.Ioffe Institute,St. Petersburg,Russia;2.Budker Institute of Nuclear Physics,Novosibirsk,Russia;3.Peter the Great St. Petersburg Polytechnic University,St. Petersburg,Russia;4.3IJL UMR 7198,CNRS Université de Lorraine,Vandoeuvre-lès-Nancy, Cedex,France |
| Abstract: | A high-energy counter-NBI has been applied for the first time on the Globus-M spherical tokamak. An ELM-free H-mode has been obtained. However, no significant increase in the ion temperature and plasma energy content compared to ELMy H-mode has been observed. This is due to a high level of the fastion losses. Neither increase in the plasma current nor an increase in plasma-wall distance resulted in an increase in NB heating efficiency as it occurred during the co-NBI experiments. |
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