Propagation of intermediate frequency waves in a bounded magnetoplasma

Journal Article · Sun Apr 01 04:00:00 EST 1984 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.333266· OSTI ID:5136315

Das, S K; Basu, J

The paper presents a study of the propagation of intermediate frequency waves in a plasma column magnetized axially and enclosed in a conducting cylinder. The general dispersion relation for the waves, obtained by the dynamic method, is found to reduce to four distinct equations associated with different forms of the field components. The ..omega..-..beta.. plane is divided into several regions of four types so that within each region only one of the above four equations would apply. Dispersion characteristics are obtained for all possible types of intermediate frequency modes in a hydrogen plasma for a typical set of ..omega../sub c/e/..omega../sub p/e and a..omega../sub p/e/c, where ..omega../sub c/e is the electron cyclotron frequency, ..omega../sub p/e is the electron plasma frequency, a is the plasma radius, and c is the velocity of light in free space. It is discussed how the dispersion characteristics of the different modes would change with variations in the plasma parameters. The investigations show that, contrary to the predictions of the usual quasistatic approximation, propagation of all intermediate frequency modes is possible at frequencies below the lower hybrid frequency ..omega../sub l/h. Moreover, the I/sup -//sub n/1 modes with nnot =0 and the superscript indicating the polarization form a special category of modes in the sense that they have a resonance at the ion cyclotron frequency ..omega../sub c/i and that their propagation below the frequency ..omega../sub l/h is confined to the domain 0<..omega..<..omega../sub c/i.

• Research Organization: S. R. S. Vidyamahapith, Kamarpukur, Hooghly, West Bengal, India
• OSTI ID: 5136315
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 55:7; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700108* -- Fusion Energy-- Plasma Research-- Wave Phenomena
CYLINDERS
DISPERSION RELATIONS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTROMAGNETIC RADIATION
MAGNETIZATION
PHYSICAL PROPERTIES
PLASMA
RADIATIONS
WAVE PROPAGATION