| Original Articles |
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Dynamic Stabilization by Modulated Toroidal Current on the HT-7 Superconducting Tokamak |
| MAO Jian-Shan;LUO Jia-Rong;ZHAO Jun-Yu;ZHANG Xian-Mei;JIE Yin-Xian;GAO Xiang;ZHANG Shou-Yin;LI Jian-Gang |
| Institute of Plasma Physics, Chinese Academy of Sciences,
P.O. Box 1126, Hefei 230031 |
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| Cite this article: |
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MAO Jian-Shan, LUO Jia-Rong, ZHAO Jun-Yu et al 2002 Chin. Phys. Lett. 19 220-223 |
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Abstract The technique of toroidal current modulation has been successfully used in suppressing magnetohydrodynamic (MHD) perturbations effectively on HT-7 superconducting tokamak. When the ratio of amplitude of plasma modulated current ΔIp versus the equilibrium plasma current Ip0 is about 12-30%, the resonance surface is moved outside the island width, the suppression of MHD perturbations is observed. The disruption induced by tearing mode instability is delayed or avoided. Different formats of frequency modulated are compared.
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| Keywords:
52.35.-g
52.35.Py
52.30.Jb
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Published: 01 February 2002
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| PACS: |
52.35.-g
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(Waves, oscillations, and instabilities in plasmas and intense beams)
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52.35.Py
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(Macroinstabilities (hydromagnetic, e.g., kink, fire-hose, mirror, ballooning, tearing, trapped-particle, flute, Rayleigh-Taylor, etc.))
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52.30.Jb
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