Generalized theory of helicon waves. I. Normal modes

Journal Article · Mon Sep 01 04:00:00 EDT 1997 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.872483· OSTI ID:538484

Chen, F F; Arnush, D ^[1]

---

1. Department of Electrical Engineering, University of California, Los Angeles, California 90095-1594 (United States)

The theory of helicon waves is extended to include finite electron mass. This introduces an additional branch to the dispersion relation that is essentially an electron cyclotron or Trivelpiece{endash}Gould (TG) wave with a short radial wavelength. The effect of the TG wave is expected to be important only for low dc magnetic fields and long parallel wavelengths. The normal modes at low fields are mixtures of the TG wave and the usual helicon wave and depend on the nature of the boundaries. Computations show, however, that since the TG waves are damped near the surface of the plasma, the helicon wave at high fields is almost exactly the same as is found when the electron mass is neglected. {copyright} {ital 1997 American Institute of Physics.}

• OSTI ID: 538484
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 9 Vol. 4; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
DISPERSION RELATIONS
ELECTROMAGNETIC RADIATION
HELICON WAVES
NORMAL-MODE ANALYSIS
PLASMA INSTABILITY
PLASMA PRODUCTION
PLASMA WAVES