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EXCITATION OF HIGH-N TOROIDAL SHEAR ALFVEN MODE DUE TO ALPHA-PARTICLE RIPPLE LOSSES IN TOKAMAKS |
| GUO Shichong1,2;CHEN Liu3;CAI Shidong(S.T.Tsai)1,2;GUO Zheng1 |
| 1Institute of Physics, Academia Sinica, Beijing
2Center of Theoretical Physics, CCAST (World Lab)
3Plasma Physics Laboratory, Princeton University, U.S.A.
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| Cite this article: |
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GUO Shichong, CHEN Liu, CAI Shidong(S.T.Tsai) et al 1989 Chin. Phys. Lett. 6 309-312 |
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Abstract The alpha-particle effects on high-n toroidal shear Alfven mode are investigated analytically. The mode can be driven to unstable when the alpha-particles have a n anisotropic distribution function due to ripple losses in tokamaks. The growth rates of the instability in both “fast” and “slow ” plasma heating cases are calculated, and the conditions for the excitation of the modes are also studied.
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| Keywords:
5230Gz
5235Py
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Published: 01 July 1989
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