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High-Power Neutral Beam Injector with Tunable Beam Energy for Plasma Heating and Stabilization

Abstract

For plasma heating and stabilization in open magnetic traps, the high-power neutral beam injector with tunable beam energy was developed at Budker Institute of Nuclear Physics. The initial energy of the beam particles is 15 keV, and it can be subsequently increased to 40 keV. In this case, the neutral beam power increases from 1.7 to 3.5 MW. A distinctive feature of this injector is the fact that, as the accelerating voltage considerably changes, the ion beam current remains constant. The injectors based on the ion sources with tunable energy are used in experiments at the C-2W open trap (USA).

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Correspondence to A. V. Brul.

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Translated by I. Grishina

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Brul, A.V., Abdrashitov, A.G., Amirov, V.K. et al. High-Power Neutral Beam Injector with Tunable Beam Energy for Plasma Heating and Stabilization. Plasma Phys. Rep. 47, 518–525 (2021). https://doi.org/10.1134/S1063780X21060040

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Key words:

  • ion source
  • neutral beam
  • positive ion source