Images of electrostatic lower-hybrid-wave beam propagation in tokamak plasmas using a paraxial WKB approach

Author

Rodrigues, Paulo ; Bizarro, João P S

Author_Institution

Centro de Fusao Nucl., Instituto Superior Tecnico, Lisbon, Portugal

Volume

30

Issue

1

fYear

2002

fDate

2/1/2002 12:00:00 AM

Firstpage

68

Lastpage

69

Abstract

A multidimensional paraxial Wentzel-Kramers-Brillouin approach is used to yield the distribution of wave potential for electrostatic lower-hybrid wave propagation in tokamak plasmas under current-drive conditions. This so-called beam tracing allows a more detailed description of wave properties than standard ray tracing. Namely, it accounts for diffraction effects, hence energy flow, in the direction perpendicular to the group velocity

Keywords

WKB calculations; plasma electrostatic waves; plasma hybrid waves; plasma light propagation; plasma toroidal confinement; beam tracing; current-drive conditions; diffraction effects; electrostatic lower-hybrid-wave beam propagation; energy flow; group velocity; multidimensional paraxial Wentzel-Kramers-Brillouin approach; paraxial WKB approach; ray tracing; tokamak plasmas; wave potential; wave properties; Diffraction; Electrostatics; Multidimensional systems; Particle beams; Plasma measurements; Plasma properties; Plasma waves; Ray tracing; Tokamaks; Toroidal magnetic fields;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/TPS.2002.1003927

Filename

1003927