On helicon wave induced radial plasma transport

1993 ◽  
Vol 43 (12) ◽  
pp. 1203-1211 ◽  
Author(s):  
V. Petržílka
Keyword(s):  
Plasma Transport ◽  
Helicon Wave ◽  
Wave Induced

scholarly journals Variations of Helicon Wave-induced Radial Plasma Transport in Different Experimental Conditions

1994 ◽  
Vol 47 (3) ◽  
pp. 315 ◽  
Author(s):  
V Petržílka
Keyword(s):  
Plasma Density ◽  
Plasma Transport ◽  
Plasma Confinement ◽  
Experimental Conditions ◽  
Magnetostatic Field ◽  
Directed Transport ◽  
Helicon Wave ◽  
Transport Velocity ◽  
Plasma Radius ◽  
Wave Induced

Variations of the helicon wave-induced radial plasma transport are presented depending on values of the plasma radius, magnetostatic field, plasma density and the frequency of the helicon wave. It is shown that the value of the helicon wave-induced transport may be significant for plasma confinement; this is demonstrated, for the experiments BASIL and SHEILA. Whereas m = +1 helicons induce an inward-directed transport and thus improve the confinement, m = -1 helicons induce an outward-directed transport velocity.

Standing Helicon Wave Induced by a Rapidly Bent Magnetic Field in Plasmas

2016 ◽  
Vol 116 (13) ◽  
Author(s):  
Kazunori Takahashi ◽  
Sho Takayama ◽  
Atsushi Komuro ◽  
Akira Ando
Keyword(s):  
Magnetic Field ◽  
Helicon Wave ◽  
Wave Induced

scholarly journals Chirality-dependent Plasma Density Profile Changes from Helicon Wave Ponderomotive Forces

1995 ◽  
Vol 48 (4) ◽  
pp. 691 ◽  
Author(s):  
V Petržílka ◽  
RL Dewar
Keyword(s):  
Plasma Density ◽  
Density Profile ◽  
Radial Profile ◽  
Force Density ◽  
Directed Transport ◽  
Helicon Wave ◽  
Plasma Density Profile ◽  
Ponderomotive Forces ◽  
Helicon Waves ◽  
Wave Induced

It is shown that nonresonant helicon-wave-induced transport may result in significant changes in the plasma density radial profile; this is illustrated using parameters appropriate to the cylindrical experiment BASIL and the toroidal experiment SHEILA. Whereas m = +1 helicon waves induce an inward-directed transport and change the density profile to a more centrally peaked one with a higher density on the axis, m = −1 helicon waves induce an outward-directed transport velocity and change the density profile to a hollow one. This may be the clue to the puzzle as to why m = −1 helicon waves are frequently difficult or impossible to excite, as the plasma column is effectively blown off to the discharge chamber walls by the ponderomotive force density of the waves with this chirality (sense of rotation of the wavevector with respect to the axial or toroidal magnetic field).

The mode transition process in collisional drift waves and self-consistent plasma diffusion across a magnetic field

1977 ◽  
Vol 55 (15) ◽  
pp. 1356-1359 ◽  
Author(s):  
R. Jones
Keyword(s):  
Magnetic Field ◽  
Transition Process ◽  
Plasma Transport ◽  
Drift Waves ◽  
Mode Transition ◽  
Linear Mode ◽  
Drift Wave ◽  
Self Consistent ◽  
Plasma Diffusion ◽  
Wave Induced

Drift wave induced cross field plasma transport is observed to destabilize new drift instabilities which then act to quench the original linear mode and enhance diffusion.

Wave-induced plasma transport in the magnetic drift frequency range

1985 ◽  
Vol 28 (2) ◽  
pp. 538 ◽  
Author(s):  
M. Rosenberg ◽  
N. A. Krall ◽  
J. B. McBride
Keyword(s):  
Plasma Transport ◽  
Frequency Range ◽  
Drift Frequency ◽  
Wave Induced

2D effect during the propagation of schock wave induced by laser plasma : Application for laser adherence test (LASAT)

2005 ◽  
Author(s):  
Laurent Berthe ◽  
Cyril Bolis ◽  
Michel Boustie ◽  
Michel Arrigoni ◽  
Sophie Barradas ◽  
...  
Keyword(s):  
Laser Plasma ◽  
Adherence Test ◽  
Wave Induced

Effects of Helicon Wave Propagation Based on a Conical Antenna Design: Part I (Preprint)

2007 ◽  
Author(s):  
Michael P. Reilly ◽  
George H. Miley ◽  
David E. Kirtley ◽  
Justin Koo ◽  
Jr. Hargus ◽  
...  
Keyword(s):  
Wave Propagation ◽  
Antenna Design ◽  
Helicon Wave
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