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M. Asakawa, K. Tanabe, A. Nakayama1,
M. Watanabe1, M. Nakamura2, H. Tanaka1,
T. Maekawa1, Y. Terumichi
Department of Physics, Faculty of Science, Kyoto University,
Kyoto 606-8502, Japan
1 Present address: Department of Fundamental Energy Science,
Graduate School of Energy Science, Kyoto University, Kyoto 606-8502, Japan
2 Present address: Osaka Institute of Technology, Osaka 535, Japan
Abstract. The experiments on control of sawtooth oscillations
(STO) by electron cyclotron current drive (ECCD) have been performed on the
WT-3 tokamak. Stabilization and excitation of STO are observed for
counter-ECCD and co-ECCD, respectively, when the position of the power
deposition is located inside the inversion radius. These results are due to
the modification of the current profile near the magnetic axis.
IAEA 2001
