Warm plasma dispersion relation of the fast Alfven wave for asymmetrical heating current drive

1989 ◽  
Vol 17 (3) ◽  
pp. 520-523
Author(s):  
J.M. Gahl ◽  
O. Ishihara ◽  
M.O. Hagler ◽  
M. Kristiansen
Keyword(s):  
Dispersion Relation ◽  
Current Drive ◽  
Alfven Wave ◽  
Heating Current ◽  
Warm Plasma ◽  
Plasma Dispersion

Alfvén wave heating, current drive, plasma flow and improved confinement scenarios in tokamaks

1999 ◽  
Vol 41 (3A) ◽  
pp. A487-A494 ◽  
Author(s):  
R M O Galvão ◽  
A G Elfimov ◽  
G Amarante-Segundo ◽  
V S Tsypin ◽  
L F Ruchko ◽  
...  
Keyword(s):  
Plasma Flow ◽  
Current Drive ◽  
Alfven Wave ◽  
Heating Current ◽  
Wave Heating

Dispersion relations for ion waves with finite parallel wavelength in plasmas of finite beta

1982 ◽  
Vol 27 (2) ◽  
pp. 351-362
Author(s):  
Stephen H. Brecht
Keyword(s):  
Dispersion Relation ◽  
Dielectric Response ◽  
Dispersion Relations ◽  
Alfven Wave ◽  
Response Functions ◽  
Plasma Parameters ◽  
Ion Waves ◽  
Plasma Dispersion ◽  
Exchange Polarization

Numerical evaluations of the dielectric response functions were performed and plasma dispersion relations computed for the full function where coupling due to finite β and k∥ are maintained. The basic plasma parameters were chosen to represent 2XIIB with variations in temperature. It is found that various branches exchange polarization and differ somewhat from the more ideal dispersion relation such as the shear Alfvén wave.

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.

Relativistic plasma dispersion relation

1969 ◽  
Vol 11 (11) ◽  
pp. 899-902 ◽  
Author(s):  
B N A Lamborn
Keyword(s):  
Dispersion Relation ◽  
Relativistic Plasma ◽  
Plasma Dispersion
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