Core plasma ion cyclotron emission driven by fusion-born ions

Research output: Research - peer-reviewLetter – Annual report year: 2019

DOI

  • Author: Ochoukov, R.

    Max Planck Institute for Plasma Physics, Germany

  • Author: Bilato, R.

    Max Planck Institute for Plasma Physics, Germany

  • Author: Bobkov, V.

    Max Planck Institute for Plasma Physics, Germany

  • Author: Chapman, B.B.

    University of Warwick, United Kingdom

  • Author: Chapman, S.C.

    University of Warwick, United Kingdom

  • Author: Dendy, R.O.

    University of Warwick, United Kingdom

  • Author: Dunne, M.

    Max Planck Institute for Plasma Physics, Germany

  • Author: Faugel, H.

    Max Planck Institute for Plasma Physics, Germany

  • Author: Garcia-Munoz, M.

    University of Seville, Spain

  • Author: Geiger, B.

    Max Planck Institute for Plasma Physics, Germany

  • Author: Kallenbach, A.

    Max Planck Institute for Plasma Physics, Germany

  • Author: Kappatou, A.

    Max Planck Institute for Plasma Physics, Germany

  • Author: McClements, K.G.

    Culham Science Centre, United Kingdom

  • Author: Moseev, D.

    Max Planck Institute for Plasma Physics, Germany

  • Author: Nielsen, S.

    Technical University of Denmark, Denmark

  • Author: Rasmussen, J.

    Plasma Physics and Fusion Energy, Department of Physics, Technical University of Denmark, Fysikvej, 2800, Kgs. Lyngby, Denmark

  • Author: Schneider, P.

    Max Planck Institute for Plasma Physics, Germany

  • Author: Weiland, M.

    Max Planck Institute for Plasma Physics, Germany

  • Author: Noterdaeme, J.-M.

    Max Planck Institute for Plasma Physics, Germany

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Ion cyclotron emission (ICE) signals whose spectral peaks match the fundamental cyclotron frequencies of hydrogen and tritium in the plasma core, near the magnetic axis, are observed in ASDEX Upgrade deuterium plasmas. In these cases the only source of energetic (⩾1 MeV) hydrogen and tritium ions is D–D fusion reactions between neutral beam injected deuterium ions and bulk deuterium ions. Hydrogen-matched core ICE is observed in a wide variety of ASDEX Upgrade plasmas, while tritium-matched core ICE is (so far) only observed in so-called H-mode density limit plasmas. In all cases ICE signals are detected directly using B-dot probes, which provide information on the emission frequency, the amplitude, and, in principle, the parallel wavenumber values. These observations support the idea of using an ICE-based diagnostic to monitor the presence of fusion-born alpha particles in tritium-burning fusion plasmas on devices such as JET, ITER, CFETR, or DEMO.
Original languageEnglish
Article number014001
JournalNuclear Fusion
Volume59
Issue number1
Number of pages5
ISSN0029-5515
DOIs
StatePublished - 2019
CitationsWeb of Science® Times Cited: 0

    Research areas

  • ICRF Waves, Ion cyclotron emission, Tokamak plasmas
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