Now showing items 1-4 of 4

    • 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)
      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 ...
    • Nonlinear electromagnetic stabilization of ITG microturbulence by ICRF-driven fast ions in ASDEX Upgrade 

      de Oliveira, F.N.; Doerk, H.; Mantsinen, Mervi J.; Angioni, C.; Bilato, R.; Bobkov, V.; Dunne, M.; Gallart, D.; Gutiérrez-Milla, A.; Mantica, P.; Odstrcil, T.; Tardini, G.; Sáez, Xavier; ASDEX Upgrade Team; EUROfusion MST1 Team (2016-10)
      Conference lecture
      Open Access
      Electromagnetic waves in the range of Ion Cyclotron Resonance Frequencies (ICRF) have many applications in fusion devices. While their use for external heating of magnetically confined fusion plasmas is well established, ...
    • Stabilization of microturbulence by fast ions n ASDEX upgrade 

      Oliveira, F.N. de; Doerk, H.; Mantsinen, M .J.; Angioni, C.; Bilato, R.; Gallart, D.; Gutiérrez-Milla, A.; Mantica, P.; Odstrcil, T.; Sáez, X.; Tardini, G.; ASDEX Upgrade Team; EUROfusion MST1 Team (Barcelona Supercomputing Center, 2017-05-04)
      Conference report
      Open Access
      The goal of the present work is to study the impact of fast ions, generated by ICRH, on microturbulence. Our methodology is similar to that in [2] and is based on extensive simulations of discharges carried out on the ASDEX ...
    • 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)
      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 ...