Effects of ergodization on plasma confinement in JFT-2M
A steady-state H-mode plasma with frequent ELMs (edge localised modes) was obtained by applying magnetic fields with high poloidal mode numbers resonant in the plasma edge. The induced ELMs limit the density and impurity accumulation normally observed during ELM-free H-mode. An EML coil with numerous resonant modes in the plasma edge appears to be the most effective. This method of control is extended to higher auxiliary heating power by increasing the magnitude of the magnetic perturbations.
Bibliographic Reference: Article: Journal of Nuclear Materials, Vol. 196-198 (1992) pp. 296-302
Record Number: 199310260 / Last updated on: 1994-11-29
Original language: en
Available languages: en