Relativistic effect on synergy of electron cyclotron and lower hybrid waves on EAST

2021 ◽  
Author(s):  
Longhao Ma ◽  
Nong Xiang ◽  
Yueheng Huang ◽  
Yemin Hu ◽  
Xuemei Zhai
Keyword(s):  
Relativistic Effect ◽  
Electron Cyclotron ◽  
Lower Hybrid ◽  
Hybrid Waves ◽  
Lower Hybrid Waves

scholarly journals Theory of synergy between electron cyclotron and lower hybrid waves

2004 ◽  
Vol 11 (7) ◽  
pp. 3449-3459 ◽  
Author(s):  
R. J. Dumont ◽  
G. Giruzzi
Keyword(s):  
Electron Cyclotron ◽  
Lower Hybrid ◽  
Hybrid Waves ◽  
Lower Hybrid Waves

Production of plasma vortices by lower-hybrid waves

1981 ◽  
Vol 26 (2) ◽  
pp. 359-367 ◽  
Author(s):  
M. Y. Yu ◽  
P. K. Shukla ◽  
H. U. Rahman
Keyword(s):  
Plasma Heating ◽  
Finite Amplitude ◽  
Current Drive ◽  
Lower Hybrid ◽  
Magnetic Fluctuations ◽  
Field Diffusion ◽  
Modulational Instabilities ◽  
Hybrid Waves ◽  
Plasma Vortices ◽  
Lower Hybrid Waves

Nonlinear excitation of electrostatic and magnetostatic zero-frequency modes by finite-amplitude lower-hybrid waves is considered. It is found that modulational instabilities can give rise to enhanced plasma vortices. Dispersion relations, as well as analytical expressions for the growth rates, are obtained. The enhanced vortices may cause anomalous cross-field diffusion which can affect plasma confinement in tokamak devices when lower-hybrid waves are used for plasma heating or current drive. We found that magnetic fluctuations associated with the parametrically driven magnetostatic mode are of particular importance in tokamak plasmas.

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