scholarly journals Temperature anisotropy in a cyclotron resonance heated tokamak plasma and the generation of poloidal electric field

1994 ◽  
Author(s):  
W. Choe ◽  
M. Ono ◽  
C.S. Chang
Keyword(s):  
Electric Field ◽  
Cyclotron Resonance ◽  
Tokamak Plasma ◽  
Temperature Anisotropy

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.

Spectroscopic method to directly measure electric field distribution in tokamak plasma edge

1997 ◽  
Vol 68 (1) ◽  
pp. 1028-1031 ◽  
Author(s):  
K. Takiyama ◽  
T. Katsuta ◽  
M. Watanabe ◽  
S. Li ◽  
T. Oda ◽  
...  
Keyword(s):  
Electric Field ◽  
Field Distribution ◽  
Electric Field Distribution ◽  
Spectroscopic Method ◽  
Tokamak Plasma ◽  
Plasma Edge

Kinetic Alfvén waves in an inhomogeneous anisotropic magnetoplasma in the presence of an inhomogeneous electric field: particle aspect analysis

2000 ◽  
Vol 63 (4) ◽  
pp. 311-328 ◽  
Author(s):  
A. BARONIA ◽  
M. S. TIWARI
Keyword(s):  
Growth Rate ◽  
Dispersion Relation ◽  
Electric Field ◽  
Alfven Waves ◽  
Alfven Wave ◽  
Larmor Radius ◽  
Alfvén Waves ◽  
Temperature Anisotropy ◽  
Inhomogeneous Electric Field ◽  
Kinetic Alfvén Waves

Kinetic Alfvén waves in the presence of an inhomogeneous electric field applied perpendicular to the ambient magnetic field in an anisotropic, inhomogeneous magnetoplasma are investigated. The particle aspect approach is adopted to investigate the trajectories of charged particles in the electromagnetic field of a kinetic Alfvén wave. Expressions are found for the field-aligned current, the perpendicular current, the dispersion relation and the particle energies. The growth rate of the wave is obtained by an energy- conservation method. It is predicted that plasma density inhomogeneity is the main source of instability, and an enhancement of the growth rate by electric field inhomogeneity and temperature anisotropy is found. The dispersion relation and growth rate involve the finite-Larmor-radius effect, electron inertia and the temperature anisotropy of the magnetoplasma. The applicability of the investigation to the auroral acceleration region is discussed.

scholarly journals The Role of an Electric Field in the Formation of a Detached Regime in Tokamak Plasma

2018 ◽  
Vol 44 (3) ◽  
pp. 255-259 ◽  
Author(s):  
I. Senichenkov ◽  
E. Kaveeva ◽  
V. Rozhansky ◽  
E. Sytova ◽  
I. Veselova ◽  
...  
Keyword(s):  
Electric Field ◽  
Tokamak Plasma

Poloidal field effects on fundamental minority ion cyclotron resonance heating in a tokamak plasma

2000 ◽  
Vol 7 (5) ◽  
pp. 1467-1478 ◽  
Author(s):  
S. C. Jun ◽  
Kaya Imre ◽  
D. C. Stevens ◽  
Harold Weitzner ◽  
C. S. Chang
Keyword(s):  
Cyclotron Resonance ◽  
Tokamak Plasma ◽  
Ion Cyclotron Resonance ◽  
Poloidal Field ◽  
Field Effects ◽  
Ion Cyclotron
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