Prof.
Yongkyoon In
(Ulsan National Institute of Science and Technology (UNIST))
26/10/2018, 08:30
EXS - Magnetic Confinement Experiments: Stability
Oral
KSTAR has demonstrated a divertor heat flux broadening during edge-localized-mode (ELM)-crash-suppression using ITER-like 3-row resonant magnetic perturbation (RMP) configurations for the first time. Over the last couple of years, we have established a robust methodology to fully suppress ELM-crashes using low-n RMPs. To address the ITER relevant ELM control, a systematic exploration of...
Dr
Youwen Sun
(Institute of Plasma Physics, Chinese Academy of Scienses)
26/10/2018, 08:50
EXS - Magnetic Confinement Experiments: Stability
Oral
Mixed toroidal harmonic Resonant Magnetic Perturbations (RMPs) have been used on both EAST and DIII-D to reduce the threshold for Edge Localized Modes (ELMs) suppression and to spread the divertor heat flux. Experiments using mixed toroidal harmonic RMPs have validated predictions that divertor heat and particle flux can be dynamically controlled while maintaining ELM suppression in DIII-D....
Dr
Wolfgang Suttrop
(Max-Planck-Institut für Plasmaphysik)
26/10/2018, 09:10
EXS - Magnetic Confinement Experiments: Stability
Oral
Full suppression of Edge Localised Modes (ELMs) by magnetic perturbations (MP) in high-confinement mode (H-mode) plasmas has been obtained in ASDEX Upgrade (AUG) in a shape-match experiment with DIII-D [Nazikian, IAEA FEC 2016]. In contrast to previous scenarios where ELMs were mitigated by MP, full ELM suppression in AUG requires stronger shaping. This finding has been attributed to larger...
Mr
Guoliang Xiao
(Southwestern Institute of Physics，China)
26/10/2018, 09:30
EXS - Magnetic Confinement Experiments: Stability
Oral
ELM control is a key issue in the magnetic fusion reactor. Experiments for controlling ELMs have been performed in the HL-2A tokamak with several tools, including lower hybrid current drive (LHCD), laser blow-off (LBO) seeded impurities (Al, Fe, W) and supersonic molecular beam injected (SMBI) impurities (Ar, Ne). A beneficial effect of the pedestal deposited impurity injected by LBO on ELM...
Dr
Debasis Chandra
(Institute For Plasma Research, INDIA)
26/10/2018, 09:50
THS - Magnetic Confinement Theory and Modelling: Stability
Oral
We report on nonlinear simulation studies of the dynamical behavior of ELMs under the influence of repetitive injection of pellets using the nonlinear 2-fluid code CUTIE. ELMs are excited by introducing a particle source in the confinement region and a particle sink in the edge region. High density pellets are injected repeatedly near the edge with different duty cycles, where a duty cycle...
