Now showing items 1-5 of 5

  • Efficient generation of energetic ions in multi-ion plasmas by radio-frequency heating 

    Kazakov, Ye.O.; Ongena, J.; Wright, S.J.; Wukith, S.J.; Lerche, E.; Mantisen, Mervi; van Eester, D.; Craciunescu, T.; Kiptily, V.G.; Lin, Y.; Nocente, M.; Nabais, F.; Nave, M.F.F.; Baranov, Y.; Bielecki, J.; Bilato, R.; Bobkov, V.; Crombé, K.; Czarnecka, A.; Faustin, J.; Felton, R.; Fitzgerald, M.; Gallart, Daniel; Giacomelli, L.; Golfinopoulos, T.; Hubbard, A.; Jacquet, Ph.; Johnson, T.; Lennholm, M.; Loarer, T.; Porkolab, M.; Sharapov, S.; Valcarcel, D.; van Schoor, M.; Weisen, H.; JET Contributors; Alcator C-Mod Team (Nature Publishing Group, 2017-06-19)
    Article
    Open Access
    We describe a new technique for the efficient generation of high-energy ions with electromagnetic ion cyclotron waves in multi-ion plasmas. The discussed ‘three-ion’ scenarios are especially suited for strong wave absorption ...
  • Fusion product losses due to fishbone instabilities in deuterium JET plasmas 

    Kiptily, V.G.; Fitzgerald, M.; Goloborodko, V.; Sharapov, S.E.; Challis, C.D.; Frigione, D.; Graves, J.; Mantsinen, Mervi; Beaumont, P.; Garcia-Munoz, M.; Perez von Thun, C.; Rodriguez, J.F.R.; Darrow, D.; Keeling, D.; King, D.; McClements, K.G.; Solano, E.R.; Schmuck, S.; Sips, G.; Szepesi, G.; JET Contributors (IOP Publishing, 2018)
    Article
    Open Access
    During development of a high-performance hybrid scenario for future deuterium–tritium experiments on the Joint European Torus, an increased level of fast ion losses in the MeV energy range was observed during the instability ...
  • Modelling third harmonic ion cyclotron acceleration of deuterium beams for JET fusion product studies experiments 

    Schneider, M.; Johnson, T.; Dumont, R.; Eriksson, L.-G.; Giacomelli, L.; Girardo, J.-B.; Hellsten, T.; Khilkevitch, E.; Kiptily, V.G.; Koskela, T.; Mantsinen, M.; Nocente, M.; Salewski, M.; Sharapov, S.E.; Shevelev, A.E.; Jet Contributors (IOP Publishing, 2016-08-24)
    Article
    Open Access
  • Observations and modelling of ion cyclotron emission observed in JET plasmas using a sub-harmonic arc detection system during ion cyclotron resonance heating 

    McClements, K.G.; Brisset, A.; Chapman, B.; Dendy, R.O.; Jacquet, P.; Kiptily, V.G.; Mantsinen, Mervi; Reman, B.C.G.; JET Contributors (IOP Publishing:, 2018-07-10)
    Article
    Open Access
    Measurements are reported of electromagnetic emission close to the cyclotron frequency of energetic ions in JET plasmas heated by waves in the ion cylotron range of frequencies (ICRF). Hydrogen was the majority ion species ...
  • Synergetic heating of D-NBI ions in the vicinity of the mode conversion layer in H-D plasmas in JET with the ITER like wall 

    Ongena, J.; Kazakov, Ye O.; Baranov, Y.; Hellesen, C.; Eriksson, J.; Johnson, T.; Kiptily, V.G.; Mantsinen, Mervi J.; Nocente, M.; Bilato, R.; Cardinali, A.; Castaldo, C.; Crombé, K.; Czarnecka, A.; Dumont, R.; Faustin, J.; Giacomelli, L.; Goloborodko, V.; Graves, J.; Jacquet, Ph.; Krawczyk, N.; Lerche, E.; Meneses, L.; Nave, M.F.F.; Patten, H.; Schneider, M.; Van Eester, D.; Weisen, H.; Wright, J.C.; JET Contributors (EDP Sciences: EPJ Open Access, 2017-10-23)
    Article
    Open Access
    This paper discusses the extension of the ‘three-ion’ species ICRF technique for heating mixture plasmas using fast injected NBI ions as resonant ‘third’ species. In this scenario the ICRF power is absorbed by the fast ...