Charged fusion product loss measurements using nuclear activation

G. Bonheure, M. Hult, R. Gonzales de Orduna, D. Arnold, H. Dombrowski, M. Laubenstein, E. Wieslander, Peter Vermaercke, A. Murari, S. Popovichev, J. Mlynar, Liesel Sneyers

    Research outputpeer-review


    In ITER, a particle loss measurements will be required in order to understand the alpha particle physics. Techniques capable of operating in a fusion reactor environment need further development. Recent experimental studies on JET demonstrated the potential of nuclear activation to measure the flux of escaping MeV ions. New results from MeV ion induced activation of metallic, ceramic, and crystal samples placed near the plasma edge are reported. Actiation products were measured as function of orientation with respect to the magnetic field as well as function of the distance to the plasma. Sample activity was measured using ultralow-level gamma-ray spectrometry. Distribution of 14.68 MeV fusion proton induced activation products is strongly anisotropic in agreement with simulations and falls off sharply with increasing distance to the plasma. Prospects for using the technique in ITER are discussed.
    Original languageEnglish
    Pages (from-to)10D331-10D331
    JournalReview of Scientific Instruments
    Issue number10
    StatePublished - Nov 2010

    Cite this