A model investigation of the impact of lower hybrid wave scattering angle on current drive profile in EAST and Alcator C-Mod

2021 ◽  
Vol 61 (10) ◽  
pp. 106034 ◽  
Author(s):  
S.G. Baek ◽  
B. Biswas ◽  
G.M. Wallace ◽  
P.T. Bonoli ◽  
B.J. Ding ◽  
...  
Keyword(s):  
Wave Scattering ◽  
Current Drive ◽  
Model Investigation ◽  
Lower Hybrid ◽  
Hybrid Wave ◽  
Lower Hybrid Wave ◽  
Scattering Angle ◽  
The Impact

Observation of Parametric Decay of a Pumping Wave in Lower Hybrid Wave Heating and Current Drive Experiments at the FT-2 Tokamak

2019 ◽  
Vol 45 (12) ◽  
pp. 1134-1141 ◽  
Author(s):  
V. V. D’yachenko ◽  
A. N. Konovalov ◽  
A. Yu. Stepanov ◽  
A. B. Altukhov ◽  
E. Z. Gusakov ◽  
...  
Keyword(s):  
Current Drive ◽  
Lower Hybrid ◽  
Hybrid Wave ◽  
Lower Hybrid Wave ◽  
Parametric Decay ◽  
Wave Heating

Outline of a theory of lower-hybrid wave absorption

1993 ◽  
Vol 50 (2) ◽  
pp. 251-266
Author(s):  
E. Canobbio ◽  
R. Croci
Keyword(s):  
Homogeneous Magnetic Field ◽  
Current Drive ◽  
Lower Hybrid ◽  
Hybrid Wave ◽  
Lower Hybrid Wave ◽  
Linear Diffusion ◽  
Neighbouring Region ◽  
Nonlinear Relation ◽  
Single Path ◽  
Component Parallel

This paper outlines a theory of absorption of lower-hybrid (LH) waves in an electron plasma that is based on the nonlinear relation between grad │E3│2, where E3 is the electric field component parallel to the external homogeneous magnetic field, and the space dependent quasi-linear diffusion coefficient, and consequently between grad │E3│2 and the absorption. A local absorption induces an increase of the value of the gradient in the neighbouring region and thereby extends the absorption domain. In this way virtually total ‘single-path’ absorption of the injected LH power is obtained. The theory also allows an explanation of the density limit in current drive.

Optimization of OH coil recharging scenario of quasi-steady operation in tokamak fusion reactor by lower hybrid wave current drive

1984 ◽  
Vol 1 (3) ◽  
pp. 265-277 ◽  
Author(s):  
Masayoshi Sugihara ◽  
Noboru Fujisawa ◽  
Takumi Yamamoto ◽  
Satoshi Nishio ◽  
Takashi Okazaki ◽  
...  
Keyword(s):  
Fusion Reactor ◽  
Current Drive ◽  
Lower Hybrid ◽  
Hybrid Wave ◽  
Lower Hybrid Wave ◽  
Tokamak Fusion Reactor
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