Shaping Effects of the E-Fishbone in Tokamaks

WANG Zhongtian (王中天); WANG Long (王龙); LONG Yongxing (龙永兴); DONG Jiaqi (董家齐); HE Zhixiong (何志雄); LIU Yu (刘宇); TANG Changjian (唐昌建)

doi:10.1088/1009-0630/15/1/03

Plasma Science and Technology > 2013 > 15(1): 12-16. > DOI: 10.1088/1009-0630/15/1/03

WANG Zhongtian (王中天), WANG Long (王龙), LONG Yongxing (龙永兴), DONG Jiaqi (董家齐), HE Zhixiong (何志雄), LIU Yu (刘宇), TANG Changjian (唐昌建). Shaping Effects of the E-Fishbone in Tokamaks[J]. Plasma Science and Technology, 2013, 15(1): 12-16. DOI: 10.1088/1009-0630/15/1/03

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Shaping Effects of the E-Fishbone in Tokamaks

1 Southwestern Institute of Physics, Chengdu 610041, China 2 Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China 3 Physics Department of Sichuan University, Chengdu 610065, China

Funds: supported by National Natural Science Foundation of China (Nos. 11261140327, 11005035, 11175058) and National Magnetic Confinement Fusion Science Program of China (No. 2009GB105002)

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Received Date: November 15, 2011

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Abstract

Abstract

Shaping effects of the E-fishbone in tokamaks are investigated. Coordinates related to the Solov'ev configuration are used to calculate the precession frequency and kinetic contribu- tion. It is shown that elongation does not change the precession frequency and the kinetic energy. Growth rates of the E-fishbone vary with elongation which essentially has destabilizing effects. For elongated tokamaks, triangularity has a stabilizing effect on the modes which play a compensative role. The results may apply to Sunist.
- shaping effects,
- E-fishbone,
- tokamaks,
- Solov'ev configuration

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