scholarly journals Ion Bernstein-wave excitation via finite-Larmor-radius mode-transformation process

1981 ◽  
Author(s):  
M. Ono ◽  
K.L. Wong ◽  
G.A. Wurden
Keyword(s):  
Transformation Process ◽  
Larmor Radius ◽  
Wave Excitation ◽  
Finite Larmor Radius ◽  
Mode Transformation ◽  
Ion Bernstein Wave ◽  
Bernstein Wave

Particle-in-cell simulation of ion Bernstein wave excitation

2002 ◽  
Vol 9 (7) ◽  
pp. 2926-2939 ◽  
Author(s):  
J. S. Lönnroth ◽  
J. A. Heikkinen ◽  
K. M. Rantamäki ◽  
S. J. Karttunen
Keyword(s):  
Wave Excitation ◽  
Particle In Cell ◽  
Cell Simulation ◽  
Ion Bernstein Wave ◽  
Bernstein Wave

Excitation of Alfvén waves by fast particles in a finite pressure plasma of adiabatic traps

1978 ◽  
Vol 20 (1) ◽  
pp. 137-148 ◽  
Author(s):  
B. I. Meerson ◽  
A. B. Mikhallovskii ◽  
O. A. Pokhotelov
Keyword(s):  
Uniform Magnetic Field ◽  
Alfven Waves ◽  
Larmor Radius ◽  
Alfvén Waves ◽  
Trapped Particles ◽  
Resonance Effects ◽  
Finite Larmor Radius ◽  
Pressure Plasma ◽  
Pressure Stabilization ◽  
Instability Growth

Resonant excitation of Alfvén waves by fast particles in a finite pressure plasma in a non-uniform magnetic field is studied. Plasma compressibility in the wave field is determined both by the curvature of the magnetic lines of force and finite Larmor radius of fast particles. A general expression for the instability growth rate is obtained and analyzed; the applicability of the results obtained in the previous paper has also been studied. The finite pressure stabilization of the trapped particles instability has been found. The bounce-resonance effects are analyzed.

Characteristics of ion Bernstein wave heating on the JIPP T-IIU tokamak

1987 ◽  
Vol 27 (9) ◽  
pp. 1379-1388 ◽  
Author(s):  
Y. Ogawa ◽  
K. Kawahata ◽  
R. Ando ◽  
E. Kako ◽  
T. Watari ◽  
...  
Keyword(s):  
Wave Heating ◽  
Ion Bernstein Wave ◽  
Bernstein Wave

scholarly journals Diffusion at the Earth magnetopause: enhancement by Kelvin-Helmholtz instability

2007 ◽  
Vol 25 (1) ◽  
pp. 271-282 ◽  
Author(s):  
R. Smets ◽  
G. Belmont ◽  
D. Delcourt ◽  
L. Rezeau
Keyword(s):  
Magnetic Field ◽  
Distribution Functions ◽  
Larmor Radius ◽  
Simple Analytical Model ◽  
Helmholtz Instability ◽  
Field Reversal ◽  
Finite Larmor Radius ◽  
The Earth ◽  
Specific Distribution ◽  
The Magnetic Field

Abstract. Using hybrid simulations, we examine how particles can diffuse across the Earth's magnetopause because of finite Larmor radius effects. We focus on tangential discontinuities and consider a reversal of the magnetic field that closely models the magnetopause under southward interplanetary magnetic field. When the Larmor radius is on the order of the field reversal thickness, we show that particles can cross the discontinuity. We also show that with a realistic initial shear flow, a Kelvin-Helmholtz instability develops that increases the efficiency of the crossing process. We investigate the distribution functions of the transmitted ions and demonstrate that they are structured according to a D-shape. It accordingly appears that magnetic reconnection at the magnetopause is not the only process that leads to such specific distribution functions. A simple analytical model that describes the built-up of these functions is proposed.

Finite-Larmor-radius stabilization of the m = 2 instability in the Isar T1-B high-beta stellarator

1977 ◽  
Vol 17 (1) ◽  
pp. 3-11 ◽  
Author(s):  
J. Neuhauser ◽  
M. Kaufmann ◽  
H. Röhr ◽  
G. Schramm
Keyword(s):  
Larmor Radius ◽  
Finite Larmor Radius ◽  
High Beta

scholarly journals Observation of parametric decay correlated with edge heating using an ion Bernstein wave antenna on DIII-D

1993 ◽  
Vol 33 (5) ◽  
pp. 777-793 ◽  
Author(s):  
R.I Pinsker ◽  
C.C Petty ◽  
M.J Mayberry ◽  
M Porkolab ◽  
W.W Heidbrink
Keyword(s):  
Parametric Decay ◽  
Wave Antenna ◽  
Ion Bernstein Wave ◽  
Bernstein Wave
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