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

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

  • Author: Hult, M.

    European Commission - Joint Research Center, Belgium

  • Author: Gonzalez de Orduna, R.

    European Commission - Joint Research Center, Belgium

  • Author: Arnold, D.

    Physikalisch-Technische Bundesanstalt, Germany

  • Author: Dombrowski, H.

    Physikalisch-Technische Bundesanstalt, Germany

  • Author: Laubenstein, M.

    Istituto Nazionale di Fisica Nucleare, Italy

  • Author: Wieslander, E.

    European Commission - Joint Research Center, Belgium

  • Author: Vidmar, T.

    SCKCEN, Belgium

  • Author: Vermaercke, P.

    SCKCEN, Belgium

  • Author: Von Thun, Christian Perez

    Max Planck Institute, Germany

  • Author: Reich, M.

    Max Planck Institute, Germany

  • Author: Jachmich, S.

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

  • Author: Murari, A.

    Consorzio RFX, Italy

  • Author: Popovichev, S.

    Culham Science Centre, United Kingdom

  • Author: Mlynar, J.

    Association EURATOM-IPP.CR, Czech Republic

  • Author: Salmi, A.

    Aalto University, Finland

  • Author: Asunta, O.

    Aalto University, Finland

  • Author: Garcia-Munoz, M.

    Max Planck Institute, Germany

  • Author: Pinches, S.

    Culham Science Centre, United Kingdom

  • Author: Koslowski, R.

    Forschungs Zentrum Jülich GmbH, Germany

  • Author: Nielsen, Stefan Kragh

    Plasma physics and fusion energy, Department of Physics, Technical University of Denmark, Fysikvej, 2800, Kgs. 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
Volume52
Pages (from-to)083004
ISSN0029-5515
DOIs
StatePublished - 2012
Peer-reviewedYes
CitationsWeb of Science® Times Cited: 3
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