Effect of shear in toroidal rotation on toroidicity induced Alfven eigenmodes
M. Saigusa; Y. Kusama; T. Ozeki; H. Kimura; T. Fujita; S. Moriyama; T. Fujii; M. Azumi; V.I. Afanassiev; Y. Neyatani; G.Y. Fu; C.Z. Cheng; M. Saigusa; Naka Fusion Res. Establ., JAERI, Ibaraki, Japan; Y. Kusama; Naka Fusion Res. Establ., JAERI, Ibaraki, Japan; T. Ozeki; Naka Fusion Res. Establ., JAERI, Ibaraki, Japan; H. Kimura; Naka Fusion Res. Establ., JAERI, Ibaraki, Japan; T. Fujita; Naka Fusion Res. Establ., JAERI, Ibaraki, Japan; S. Moriyama; Naka Fusion Res. Establ., JAERI, Ibaraki, Japan; T. Fujii; Naka Fusion Res. Establ., JAERI, Ibaraki, Japan; M. Azumi; Naka Fusion Res. Establ., JAERI, Ibaraki, Japan; V.I. Afanassiev; Naka Fusion Res. Establ., JAERI, Ibaraki, Japan; Y. Neyatani; Naka Fusion Res. Establ., JAERI, Ibaraki, Japan; G.Y. Fu; Naka Fusion Res. Establ., JAERI, Ibaraki, Japan; C.Z. Cheng; Naka Fusion Res. Establ., JAERI, Ibaraki, Japan
Журнал:
Nuclear Fusion
Дата:
1997-11-01
Аннотация:
It is found that low-n toroidicity induced Alfven eigenmodes (TAEs) excited by ion cyclotron resonance heating can be stabilized by counter-tangential neutral beam injection in JT-60U. The deformation of the radial structure of the TAE mode due to the shear in toroidal rotation is a plausible stabilizing mechanism. This mechanism is also expected to be effective in suppressing high-n TAE modes. Real time control of TAE mode amplitudes using toroidal rotation control is possible for burn control in fusion reactors
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