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Experimental Study of the Effect of Poloidal Flow on Stability of Magnetic Islands in LHD and TJ‐II
Author(s) -
Narushima Y.,
Castejón F.,
Watanabe K. Y.,
Sakakibara S.,
Estrada T.,
Medina F.,
LópezBruna D.,
Yokoyama M.,
Ida K.
Publication year - 2010
Publication title -
contributions to plasma physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.531
H-Index - 47
eISSN - 1521-3986
pISSN - 0863-1042
DOI - 10.1002/ctpp.200900048
Subject(s) - diamagnetism , large helical device , magnetic field , flow (mathematics) , plasma , physics , ion , electric field , atomic physics , condensed matter physics , mechanics , nuclear physics , quantum mechanics
The effect of the poloidal flow on the magnetic island is studied. The self‐healing of the magnetic island has been observed in the Large Helical Device (LHD) and TJ‐II. In TJ‐II plasmas, the magnetic island is healed in case the radial electric field is positive. In the LHD experiment, on the other hand, the radial electric field is negative when the magnetic island is healed. The relation between the magnitudes of the E × B flow and ion diamagnetic flow is important to consider the effect of the poloidal flow on magnetic island (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)