| PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES |
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Excitation of Internal Kink Mode by Circulating Supra-thermal Electrons |
| CHEN Shao-Yong1**, WANG Zhong-Tian2, TANG Chang-Jian1 |
1College of Physical Science and Technology, Sichuan University, Chengdu 610065
2Southwestern Institute of Physics, Chengdu 610041
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| Cite this article: |
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WANG Zhong-Tian, TANG Chang-Jian, CHEN Shao-Yong 2012 Chin. Phys. Lett. 29 025203 |
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Abstract The internal kink mode with a real frequency comparable with the bulk ion diamagnetic frequency is investigated in the case of lower hybrid wave injection. It is found that circulating supra-thermal electrons can directly destabilize the internal kink mode by resonance interaction in the neighborhood of the q=1 rational surface. The pressure gradient of circulating supra-thermal electrons on the resonance surface is crucial for excitation of the mode.
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| Keywords:
52.35.Py
52.50.Sw
52.35.Fa
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Received: 30 September 2011
Published: 11 March 2012
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| PACS: |
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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52.50.Sw
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(Plasma heating by microwaves; ECR, LH, collisional heating)
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52.35.Fa
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