Long pulse enhanced confinement discharges in the HT-7 superconducting tokamak by ion Bernstein wave heating and lower hybrid wave current drive

2003 ◽  
Vol 10 (5) ◽  
pp. 1653-1658 ◽  
Author(s):  
J. Li ◽  
B. N. Wan ◽  
J. R. Luo ◽  
G. L. Kuang ◽  
Y. P. Zhao ◽  
...  
Keyword(s):  
Current Drive ◽  
Lower Hybrid ◽  
Hybrid Wave ◽  
Lower Hybrid Wave ◽  
Wave Heating ◽  
Ion Bernstein Wave ◽  
Bernstein Wave ◽  
Long Pulse ◽  
Superconducting Tokamak

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

LOWER HYBRID WAVE HEATING OF FTU TOKAMAK

1982 ◽  
pp. 999-1006
Author(s):  
F. Santini ◽  
E. Barbato ◽  
F. Romanelli
Keyword(s):  
Lower Hybrid ◽  
Hybrid Wave ◽  
Lower Hybrid Wave ◽  
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.

Simulation on the Temperature Properties of EAST Lower Hybrid Wave Antenna

2014 ◽  
Vol 716-717 ◽  
pp. 1326-1329
Author(s):  
Jun Li ◽  
Fu Kun Liu ◽  
Tai Jun Liu ◽  
Cai Xia Guo ◽  
Xiang Yue Ying
Keyword(s):  
Finite Element ◽  
Element Model ◽  
Lower Hybrid ◽  
Finite Element Code ◽  
Hybrid Wave ◽  
Lower Hybrid Wave ◽  
Wave Antenna ◽  
Solid Foundation ◽  
The Finite Element Model ◽  
Superconducting Tokamak

A method for building the finite element model of the lower hybrid wave antenna was proposed according to the situation of the Experimental Advanced Superconducting Tokamak (EAST) and its LHW antenna. Temperature properties of 2.45GHz lower hybrid wave antenna on EAST are investigated. The temperature distribution of antenna is performed using the finite element code. The influences of some parameters on the temperature of the antenna are studied and discussed. The simulated results lay the solid foundation for design and improvement for the lower hybrid wave antenna.

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