Estimation of pump-out and positive radial electric field created by electron cyclotron resonance heating in magnetic confinement devices

2008 ◽  
Vol 15 (1) ◽  
pp. 012504 ◽  
Author(s):  
F. Castejón ◽  
S. Eguilior ◽  
I. Calvo ◽  
D. López-Bruna ◽  
J. M. García-Regaña
Keyword(s):  
Electric Field ◽  
Cyclotron Resonance ◽  
Electron Cyclotron Resonance ◽  
Radial Electric Field ◽  
Magnetic Confinement ◽  
Electron Cyclotron ◽  
Electron Cyclotron Resonance Heating

Poloidal electric field due to electron-cyclotron resonance heating in tokamaks

1992 ◽  
Vol 47 (2) ◽  
pp. 261-269 ◽  
Author(s):  
M. Taguchi
Keyword(s):  
Electric Field ◽  
Cyclotron Resonance ◽  
Electron Cyclotron Resonance ◽  
Resonance Condition ◽  
Adjoint Equation ◽  
Planck Equation ◽  
Electron Cyclotron ◽  
Electron Cyclotron Resonance Heating ◽  
Tokamak Plasma ◽  
Linear Diffusion

The poloidal electric field generated by electron-cyclotron resonance heating is investigated for a tokamak plasma in the collisionless regime. This poloidal electric field is calculated by solving an adjoint equation to the linearized Fokker-Planck equation with a quasi-linear diffusion term. It is found from this calculation that the magnitude and the sign of the poloidal electric field depend strongly on the values of the inverse aspect ratio, the poloidal angle of the absorption point, the parallel velocity of resonant electrons normalized by the thermal velocity, and the strength of the relativistic correction to the resonance condition.

Suppression of runaway electrons during electron cyclotron resonance heating on HL-2A tokamak

2009 ◽  
Vol 76 (1) ◽  
pp. 75-85 ◽  
Author(s):  
JIN-WEI YANG ◽  
YI-PO ZHANG ◽  
XU LI ◽  
XIAN-YING SONG ◽  
GUO-LIANG YUAN ◽  
...  
Keyword(s):  
Electric Field ◽  
Cyclotron Resonance ◽  
Electron Cyclotron Resonance ◽  
Resonant Interaction ◽  
Electron Cyclotron ◽  
Electron Cyclotron Resonance Heating ◽  
Runaway Electrons ◽  
Long Duration ◽  
Cross Correlation Analysis ◽  
Electron Cyclotron Waves

AbstractThe statistical analysis of heating effect and the cross-correlation analysis of both electron temperature and loop voltage have been done during electron cyclotron resonance heating (ECRH). The behavior of runaway electrons in the flat-top phase during ECRH are analyzed using experimental data. It is shown that the runaway population is indeed suppressed or even quenched when the toroidal electric field ET is reduced below the threshold electric field Eth by high-power and long-duration ECRH. The physical mechanism of runaway suppression is explored by the resonant interaction between the electron cyclotron waves and the energetic runaway electrons.

scholarly journals Electron Cyclotron Resonance Heating on TEXTOR

2005 ◽  
Vol 47 (2) ◽  
pp. 108-118 ◽  
Author(s):  
E. Westerhof ◽  
J. A. Hoekzema ◽  
G. M. D. Hogeweij ◽  
R. J. E. Jaspers ◽  
F. C. Schüller ◽  
...  
Keyword(s):  
Cyclotron Resonance ◽  
Electron Cyclotron Resonance ◽  
Electron Cyclotron ◽  
Electron Cyclotron Resonance Heating

Electron Cyclotron Resonance Heating of Plasma in the Gas Dynamic Trap

2014 ◽  
Vol 9 (2) ◽  
pp. 13-21
Author(s):  
Aleksandr Solomakhin ◽  
Petr Bagryansky ◽  
Yuriy Kovalenko ◽  
Valeriy Savkin ◽  
Dmitriy Yakovlev
Keyword(s):  
Cyclotron Resonance ◽  
Electron Cyclotron Resonance ◽  
Plasma Heating ◽  
Electron Cyclotron ◽  
Electron Cyclotron Resonance Heating ◽  
Total Power ◽  
Plasma Parameters ◽  
Experimental Conditions ◽  
Microwave Beam ◽  
Gas Dynamic

Electron cyclotron resonance plasma heating (ECRH) system has been recently installed on the gas dynamic trap (GDT) magnetic mirror. Two microwave beams are injected into the plasma at an angle of 36° with respect to the machine axis in a form of extraordinary (X) waves which are subsequently absorbed in the first harmonic cyclotron resonance. Each microwave beam is generated by a Buran-A type 450 kW/54.5 GHz gyrotron. The article reports on the first microwave injection experiments with limited total power of 300 kW. Adjustment of experimental conditions and magnetic field reconfiguration resulted in an increased diamagnetic signal, electron temperature and other plasma parameters

42-GHz/500-kW Electron Cyclotron Resonance Heating System on Tokamak SST-1

2015 ◽  
Vol 43 (1) ◽  
pp. 485-489 ◽  
Author(s):  
Braj Kishore Shukla ◽  
Paresh J. Patel ◽  
Jatin Patel ◽  
Rajan Babu ◽  
Harshida Patel ◽  
...  
Keyword(s):  
Cyclotron Resonance ◽  
Electron Cyclotron Resonance ◽  
Heating System ◽  
Electron Cyclotron ◽  
Electron Cyclotron Resonance Heating
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