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Concept of the divertor of a fusion neutron source based on a spherical tokamak

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Abstract

A concept of the divertor and the technology for organizing the edge plasma in a fusion neutron source based on a spherical tokamak (FNS-ST) are described. The experimental data on the characteristics of the peripheral plasma in modern tokamaks are extrapolated to the FNS-ST conditions with the help of semi-analytical models. The effects depending on the magnetic configuration and on the geometry and materials of the divertor and the first-wall elements are considered. Possible designs of the FNS-ST divertor and the first wall are described. Using an original model, it is shown that the maximum density of the heat flux at the divertor plates in a double-null magnetic configuration does not exceed 5–6 MW/m2, which complies with modern engineering capabilities. Methods for further improvement of the FNS-ST divertor concept are analyzed.

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Authors and Affiliations

  1. St. Petersburg State Polytechnical University, Politekhnicheskaya ul. 29, St. Petersburg, 195251, Russia

    V. Yu. Sergeev, A. S. Bykov & P. R. Goncharov

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

    B. V. Kuteev, V. S. Petrov, A. A. Golikov, A. V. Golubeva, G. S. Kirnev, A. V. Klishchenko, V. V. Luk’yanov, A. V. Spitsyn & Yu. S. Shpansky

  3. Culham Science Centre, Tokamak Solutions UK Ltd., Abingdon, OX14 3DB, UK

    M. P. Gryaznevich

  4. Moscow State University, Moscow, 119992, Russia

    D. Yu. Sychugov

Authors
  1. V. Yu. Sergeev
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  2. B. V. Kuteev
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  3. A. S. Bykov
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  4. V. S. Petrov
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  5. A. A. Golikov
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  6. A. V. Golubeva
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  7. P. R. Goncharov
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  8. M. P. Gryaznevich
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  9. G. S. Kirnev
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  10. A. V. Klishchenko
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  11. V. V. Luk’yanov
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  12. A. V. Spitsyn
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  13. D. Yu. Sychugov
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  14. Yu. S. Shpansky
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Additional information

Original Russian Text © V.Yu. Sergeev, B.V. Kuteev, A.S. Bykov, V.S. Petrov, A.A. Golikov, A.V. Golubeva, P.R. Goncharov, M.P. Gryaznevich, G.S. Kirnev, A.V. Klishchenko, V.V. Luk’yanov, A.V. Spitsyn, D.Yu. Sychugov, Yu.S. Shpansky, 2012, published in Fizika Plazmy, 2012, Vol. 38, No. 7, pp. 571–590.

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Sergeev, V.Y., Kuteev, B.V., Bykov, A.S. et al. Concept of the divertor of a fusion neutron source based on a spherical tokamak. Plasma Phys. Rep. 38, 521–539 (2012). https://doi.org/10.1134/S1063780X12060116

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  • DOI: https://doi.org/10.1134/S1063780X12060116

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