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First Globus-M2 Results

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Abstract

Globus-M2—a new 1-Tesla spherical tokamak—was recently launched. The main features and research directions of this machine in scope of fusion–fission reactor development are described. Main results of the first experimental campaign with toroidal magnetic field up to 0.73 T and plasma current up to 0.33 MA are discussed. Significant improvement of the discharge parameters as compared to Globus-M was achieved. Plasma total stored energy higher than 7 kJ was obtained. Energy confinement time increase was consistent with predictions by spherical tokamak scalings. Toroidal Alfvén eigenmode-induced losses decrease with increase of plasma current and toroidal magnetic field. For the first time, LHCD with the toroidal wave slowing-down was successfully used at a spherical tokamak.

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Funding

The experiments were performed on the unique scientific device “Spherical tokamak Globus-M,” which is incorporated in the Federal Joint Research Center “Material science and characterization in advanced technology” (project ID RFMEFI62119X0021). Energy confinement study described in Section 2 was performed by E.O. Kiselev, G.S. Kurskiev, V.B. Minaev, N.V. Sakharov, P.B. Shchegolev, A.Yu. Telnova, and E.A. Tukhmeneva and financially supported by RSF research project no. 17-72-20076. Alfvén eigenmode study described in Section 3 was performed by V.K. Gusev and. Yu.V. Petrov and financially supported by RSF research project no. 17-12-01177. Equipment of the neutral particle analyzer with a scanning platform and energetic ion studies described in Section 1 were performed by N.N. Bakharev, A.D. Melnik, and V.A. Tokarev and funded by RFBR research project no. 18-32-20031. LHCD experiments described in Section 4 were performed within the framework of the State task of the Ministry of Science and Higher Education of Russian Federation.

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Authors and Affiliations

  1. Ioffe Institute, 194021, St Petersburg, Russia

    N. N. Bakharev, I. M. Balachenkov, F. V. Chernyshev, I. N. Chugunov, V. V. Dyachenko, V. K. Gusev, M. V. Iliasova, E. M. Khilkevitch, N. A. Khromov, E. O. Kiselev, A. N. Konovalov, G. S. Kurskiev, V. B. Minaev, A. D. Melnik, I. V. Miroshnikov, A. N. Novokhatsky, M. I. Patrov, Yu. V. Petrov, N. V. Sakharov, P. B. Shchegolev, A. E. Shevelev, O. M. Skrekel, A. Yu. Telnova, V. A. Tokarev, S. Yu. Tolstyakov, E. A. Tukhmeneva, V. I. Varfolomeev & A. V. Voronin

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  1. N. N. Bakharev
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  28. A. V. Voronin
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Correspondence to N. N. Bakharev.

Additional information

This manuscript is based on the AAPP 2019 report “Globus-M2 Experiments in Scope of Fusion–Fission Reactor Development.”

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Bakharev, N.N., Balachenkov, I.M., Chernyshev, F.V. et al. First Globus-M2 Results. Plasma Phys. Rep. 46, 675–682 (2020). https://doi.org/10.1134/S1063780X20070016

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