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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 |
| Institution: | 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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