Abstract
Results from experimental studies on the injection of high-energy neutral hydrogen beams into the plasma of the Globus-M spherical tokamak are reviewed. In the Introduction, the importance of these studies for implementing the controlled fusion research program and constructing the ITER tokamak is proved. Some problems related to the use of neutral beam injection in small and low-aspect-ratio tokamaks is analyzed. Results are presented from numerical simulations of the experiment by using the ASTRA transport code. It is shown that the use of neutral beam injection in the Globus-M tokamak ensures efficient ion heating and increases the plasma stored energy. The greater part of the review is devoted to the survey of experiments on the injection of 22-to 30-keV hydrogen and deuterium beams with a power of 0.4–0.8 MW into the plasma of the Globus-M spherical tokamak in a wide range of plasma currents and densities. The experimental results are analyzed and compared with the results of numerical simulations. The achievement of top plasma parameters is highlighted.
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Original Russian Text © B.B. Ayushin, A.G. Barsukov, V.K. Gusev, L.A. Esipov, E.G. Zhilin, G.S. Kurskiev, R.G. Levin, V.M. Leonov, V.B. Minaev, M.I. Patrov, Yu.V. Petrov, N.V. Sakharov, G.N. Tilinin, S.Yu. Tolstyakov, F.V. Chernyshev, 2008, published in Fizika Plazmy, 2008, Vol. 34, No. 2, pp. 99–113.
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Ayushin, B.B., Barsukov, A.G., Gusev, V.K. et al. Study of plasma heating in discharges with neutral beam injection in the Globus-M spherical tokamak. Plasma Phys. Rep. 34, 81–94 (2008). https://doi.org/10.1134/S1063780X08020013
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DOI: https://doi.org/10.1134/S1063780X08020013