scholarly journals The general dielectric tensor for bi-kappa magnetized plasmas

2016 ◽  
Vol 23 (6) ◽  
pp. 062108 ◽  
Author(s):  
R. Gaelzer ◽  
L. F. Ziebell ◽  
A. R. Meneses
Keyword(s):  
Dielectric Tensor ◽  
Magnetized Plasmas

scholarly journals The dielectric tensor for dusty magnetized plasmas with variable charge on dust particles

1998 ◽  
Vol 60 (2) ◽  
pp. 243-263 ◽  
Author(s):  
M. C. de JULI ◽  
R. S. SCHNEIDER
Keyword(s):  
Magnetic Field ◽  
Wave Propagation ◽  
External Magnetic Field ◽  
Dusty Plasmas ◽  
Dust Particles ◽  
Magnetosonic Wave ◽  
Dielectric Tensor ◽  
Magnetized Plasmas ◽  
Variable Charge ◽  
Electrons And Ions

We derive the dielectric tensor for multicomponent magnetized dusty plasmas, including the effect of capture of plasma electrons and ions by the dust particles. For propagation perpendicular to the external magnetic field and Maxwellian distributions of electrons and ions, we obtain compact expressions for the components of the dielectric tensor, which can be used to analyse wave propagation. An application to the magnetosonic wave is presented.

The dispersion relation and the dielectric tensor of inhomogeneous magnetized plasmas

1989 ◽  
Vol 42 (1) ◽  
pp. 165-175 ◽  
Author(s):  
R. A. Caldela Fo. ◽  
R. S. Schneider ◽  
L. F. Ziebell
Keyword(s):  
High Frequency ◽  
Electromagnetic Wave Propagation ◽  
Resonant Absorption ◽  
Dielectric Tensor ◽  
Magnetized Plasmas ◽  
Plasma Parameters ◽  
Symmetry Properties ◽  
The Subject ◽  
High Frequency Waves ◽  
Explicit Expressions

Electromagnetic-wave propagation in inhomogeneous magnetized plasmas is studied. Two different approaches to the subject are discussed and compared. Explicit expressions for the dielectric tensor components are derived following an established procedure that takes into account the effects of the gradients of plasma parameters, and are shown to possess non-resonant contributions to the anti-Hermitian parts. General and explicit expressions are also derived by following a different approach that has recently appeared in the literature, and are shown to possess satisfactory symmetry properties leading to anti-Hermitian parts comprising only resonant terms. The simple case of high-frequency waves in the ordinary mode propagating perpendicularly to the ambient magnetic field is presented as an example in order to show that the use of the dielectric tensor derived using the second method correctly describes wave absorption and/or amplification, eliminating the feature of non-resonant absorption that arises from the use of the first method.

scholarly journals Effects of plasma turbulence on the nonlinear evolution of magnetic island in tokamak

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Minjun J. Choi ◽  
Lāszlo Bardōczi ◽  
Jae-Min Kwon ◽  
T. S. Hahm ◽  
Hyeon K. Park ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Nonlinear Evolution ◽  
Plasma Turbulence ◽  
Magnetized Plasmas ◽  
Tokamak Plasmas ◽  
Magnetic Islands ◽  
Magnetic Island ◽  
Reconnection Site ◽  
Ambient Turbulence

AbstractMagnetic islands (MIs), resulting from a magnetic field reconnection, are ubiquitous structures in magnetized plasmas. In tokamak plasmas, recent researches suggested that the interaction between an MI and ambient turbulence can be important for the nonlinear MI evolution, but a lack of detailed experimental observations and analyses has prevented further understanding. Here, we provide comprehensive observations such as turbulence spreading into an MI and turbulence enhancement at the reconnection site, elucidating intricate effects of plasma turbulence on the nonlinear MI evolution.

scholarly journals Blob motion and control in simple magnetized plasmas

2011 ◽  
Vol 18 (5) ◽  
pp. 055901 ◽  
Author(s):  
C. Theiler ◽  
I. Furno ◽  
A. Fasoli ◽  
P. Ricci ◽  
B. Labit ◽  
...  
Keyword(s):  
Magnetized Plasmas ◽  
And Control
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