Scattering of ion-cyclotron alfvén waves by drift waves in a collisional plasma

1988 ◽  
Vol 36 (5) ◽  
pp. 499-502 ◽  
Author(s):  
L. Stenflo ◽  
M.Y. Yu ◽  
P.K. Shukla
Keyword(s):  
Alfven Waves ◽  
Collisional Plasma ◽  
Alfvén Waves ◽  
Drift Waves ◽  
Ion Cyclotron

Zonal flow and field generation by finite beta drift waves and kinetic drift-Alfvén waves

2001 ◽  
Vol 8 (9) ◽  
pp. 3907-3912 ◽  
Author(s):  
P. N. Guzdar ◽  
R. G. Kleva ◽  
A. Das ◽  
P. K. Kaw
Keyword(s):  
Zonal Flow ◽  
Alfven Waves ◽  
Alfvén Waves ◽  
Drift Waves ◽  
Field Generation

The excitation of obliquely propagating fast Alfvén waves at fusion ion cyclotron harmonics

1994 ◽  
Vol 1 (6) ◽  
pp. 1918-1928 ◽  
Author(s):  
R. O. Dendy ◽  
C. N. Lashmore‐Davies ◽  
K. G. McClements ◽  
G. A. Cottrell
Keyword(s):  
Alfven Waves ◽  
Alfvén Waves ◽  
Ion Cyclotron ◽  
Cyclotron Harmonics

scholarly journals Ion-cyclotron wave dissipation channel for Alfvén waves

1999 ◽  
Vol 26 (13) ◽  
pp. 1817-1820 ◽  
Author(s):  
Edisher Kh. Kaghashvili
Keyword(s):  
Alfven Waves ◽  
Alfvén Waves ◽  
Wave Dissipation ◽  
Ion Cyclotron

Electromagnetic ion-cyclotron instability in low beta plasma with intrinsic Alfven waves

2021 ◽  
Author(s):  
GuanShan Pu ◽  
ChuanBing Wang ◽  
PeiJin Zhang ◽  
Lin Ye
Keyword(s):  
Growth Rate ◽  
Low Frequency ◽  
Alfven Waves ◽  
Qualitative Description ◽  
Alfvén Waves ◽  
Temperature Anisotropy ◽  
Dimensional Parameter ◽  
Positive Effects ◽  
Ion Cyclotron ◽  
Emic Waves

<p>Intrinsic Alfven waves (IAWs) exist pervasively in the solar-terrestrial plasma, which can preferentially heat newborn ions in the direction perpendicular to the ambient magnetic field via non-resonant interactions when the plasma beta is low. The anisotropized newborn ion populations can excite electromagnetic ion-cyclotron (EMIC) instability. Parametric calculations indicate that the lower the plasma beta is, the higher the growth rate, while the growth rate increases with the number density of newborn ions and the intensity of IAWs. The marginal stable surface in three-dimensional parameter space is also calculated, which provides a qualitative description of parametric conditions for instability. We propose that the coupled effects of non-resonant heating by IAWs and EMIC instability could be an effective mechanism for transferring the energy from low-frequency IAWs to EMIC waves with a frequency below the gyrofrequency of the corresponding ion species. Furthermore, the temperature anisotropy of background ions with the same sense has positive effects on the growth of EMIC waves excited by newborn ions.</p>

Destabilization of Hydromagnetic Drift-Alfvén Waves in a Finite-β, Collisional Plasma

1975 ◽  
Vol 34 (2) ◽  
pp. 70-73 ◽  
Author(s):  
J. T. Tang ◽  
N. C. Luhmann ◽  
Yasushi Nishida ◽  
Kazushige Ishii
Keyword(s):  
Alfven Waves ◽  
Collisional Plasma ◽  
Alfvén Waves

Stabilization of collisional drift waves by kinetic Alfvén waves

1992 ◽  
Vol 47 (2) ◽  
pp. 249-260
Author(s):  
C. Kar ◽  
S. K. Majumdar ◽  
A. N. Sekar Iyengar
Keyword(s):  
Mode Coupling ◽  
Ponderomotive Force ◽  
Low Frequency ◽  
Alfven Waves ◽  
Alfven Wave ◽  
Alfvén Waves ◽  
Drift Waves ◽  
Coupling Mechanism ◽  
Plasma Parameters ◽  
Kinetic Alfvén Waves

We have investigated a mode-coupling mechanism between kinetic Alfvén waves and a collisional drift wave in an inhomogeneous cylindrical plasma. Drift waves satisfying the condition k⊥D > 1/r0 (where r0 is the radius of the plasma cylinder) are stabilized by the low-frequency ponderomotive force generated by the kinetic Alfvén waves. For typical plasma parameters and a moderate level of Alfven-wave intensity the stabilization factor is comparable to the destabilization mechanism due to collisions.

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