Experimental investigation of the confinement of d(3He,p)α and d(d,p)t fusion reaction products in JET

Publication: Research - peer-reviewJournal article – Annual report year: 2012

  • Author: Bonheure, Georges , Belgium

    Plasma Physics Department (LPP), ERM/KMS, Belgium

  • Author: Hult, M., Belgium

    Joint Research Centre, Institute for Reference Materials and Measurements (IRMM), Belgium

  • Author: Gonzalez de Orduna, R., Belgium

    Joint Research Centre, Institute for Reference Materials and Measurements (IRMM), Belgium

  • Author: Arnold, D., Germany

    Physikalisch-Technische Bundesanstalt (PTB), Germany

  • Author: Dombrowski, H., Germany

    Physikalisch-Technische Bundesanstalt (PTB), Germany

  • Author: Laubenstein, M., Italy

    INFN-Laboratori Nazionali del Gran Sasso, Italy

  • Author: Wieslander, E., Belgium

    Joint Research Centre, Institute for Reference Materials and Measurements (IRMM), Belgium

  • Author: Vidmar, T., Belgium

    SCKCEN, Belgium

  • Author: Vermaercke, P., Belgium

    SCKCEN, Belgium

  • Author: Von Thun, Christian Perez , Germany

    Max-Planck-Institut für Plasmaphysik, Germany

  • Author: Reich, M., Germany

    Max-Planck-Institut für Plasmaphysik, Germany

  • Author: Jachmich, S., Belgium

    Plasma Physics Department (LPP), ERM/KMS, Belgium

  • Author: Murari, A., Italy

    Association EURATOM/ENEA, Italy

  • Author: Popovichev, S., United Kingdom

    Culham Science Centre, United Kingdom

  • Author: Mlynar, J., Czech Republic

    Association EURATOM-IPP.CR, Czech Republic

  • Author: Salmi, A., Finland

    Department of Applied Physics, Aalto University, Finland

  • Author: Asunta, O., Finland

    Department of Applied Physics, Aalto University,, Finland

  • Author: Garcia-Munoz, M., Germany

    Max-Planck-Institut für Plasmaphysik, Germany

  • Author: Pinches, S., United Kingdom

    Culham Science Centre, United Kingdom

  • Author: Koslowski, R., Germany

    Institut für Plasmaphysik, Forschungszentrum Jülich GmbH, Germany

  • Author: Nielsen, Stefan Kragh

    Plasma physics and fusion energy, Department of Physics, Technical University of Denmark, Fysikvej, 2800, Lyngby, Denmark

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In ITER, magnetic fusion will explore the burning plasma regime. Because such burning plasma is sustained by its own fusion reactions, alpha particles need to be confined (Hazeltine 2010 Fusion Eng. Des. 7–9 85). New experiments using d(3He,p)α and d(d,p)t fusion reaction products were performed in JET. Fusion product loss was measured from MHD-quiescent plasmas with a charged particle activation probe installed at a position opposite to the magnetic field ion gradient drift (see figure 1)—1.77 m above mid-plane—in the ceiling of JET tokamak. This new kind of escaping ion detector (Bonheure et al 2008 Fusion Sci. Technol. 53 806) provides for absolutely calibrated measurements. Both the mechanism and the magnitude of the loss are dealt with by this research. Careful analysis shows measured loss is in quantitative agreement with predictions from the classical orbit loss model. However, the comparison with simulated loss radial profile, although improved compared with previous studies in TFTR, Princeton, US (Zweben et al 2000 Nucl. Fusion 40 91), is not fully satisfactory and potential explanations for this discrepancy are examined.
Original languageEnglish
JournalNuclear Fusion
Publication date2012
Volume52
Pages083004
ISSN0029-5515
DOIs
StatePublished
CitationsWeb of Science® Times Cited: 2
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