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Operation of a tokamak reactor in the radiative improved mode

  • Fields, Particles, and Nuclei
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Abstract

The operation of a nuclear fusion reactor has been simulated within a model based on experimental results obtained at the TEXTOR-94 tokamak and other facilities in which quasistationary regimes were achieved with long confinement times, high densities, and absence of the edge-localized mode. The radiative improved mode of confinement studied in detail at the TEXTOR-94 tokamak is the most interesting such regime. One of the most important problems of modern tokamaks is the problem of a very high thermal load on a divertor (or a limiter). This problem is quite easily solved in the radiative improved mode. Since a significant fraction of the thermal energy is reemitted by an impurity, the thermal loading is significantly reduced. As the energy confinement time τ E at high densities in the indicated mode is significantly larger than the time predicted by the scaling of ITERH-98P(y, 2), ignition can be achieved in a facility much smaller than the ITER facility at plasma temperatures below 20 keV. The revealed decrease in the degradation of the confinement time τ E with an increase in the introduced power has been analyzed.

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Authors and Affiliations

  1. National Research Centre Kurchatov Institute, pl. Akademika Kurchatova 1, Moscow, 123182, Russia

    D. Kh. Morozov & A. A. Mavrin

  2. National Research Nuclear University MEPhI, Kashirskoe sh. 31, Moscow, 115409, Russia

    D. Kh. Morozov

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  1. D. Kh. Morozov
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  2. A. A. Mavrin
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Correspondence to D. Kh. Morozov.

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Original Russian Text © D.Kh. Morozov, A.A. Mavrin, 2016, published in Pis’ma v Zhurnal Eksperimental’noi i Teoreticheskoi Fiziki, 2016, Vol. 103, No. 5, pp. 337–341.

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Morozov, D.K., Mavrin, A.A. Operation of a tokamak reactor in the radiative improved mode. Jetp Lett. 103, 298–301 (2016). https://doi.org/10.1134/S0021364016050106

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