MEASUREMENT OF ELECTRON DENSITY BY ELECTROMAGNETIC WAVES WHICH PROPAGATE ON A MAGNETIZED PLASMA COLUMN

1979 ◽  
Vol 40 (C7) ◽  
pp. C7-823-C7-824
Author(s):  
D. M. Šulik
Keyword(s):  
Electron Density ◽  
Plasma Column ◽  
Electromagnetic Waves ◽  
Magnetized Plasma

Dispersion of dipolar electromagnetic waves in a radially inhomogeneous axially magnetized plasma column

1997 ◽  
Vol 58 (4) ◽  
pp. 633-646 ◽  
Author(s):  
I. GHANASHEV ◽  
I. ARESTOVA ◽  
E. TATAROVA ◽  
I. ZHELYAZKOV ◽  
Sv. STOYKOV
Keyword(s):  
Plasma Density ◽  
Plasma Column ◽  
Electromagnetic Waves ◽  
Wave Attenuation ◽  
Magnetized Plasma ◽  
Plasma Inhomogeneity ◽  
Polarized Waves ◽  
Plasma Density Profile ◽  
Order Of Magnitude ◽  
Radially Inhomogeneous

The wavelengths and attenuation coefficients of dipolar left and right-hand circularly polarized waves in a radially inhomogeneous axially magnetized plasma column are computed by means of step approximation of the radial plasma density profile. A comparison with theoretical results assuming radial plasma homogeneity shows that the radial plasma inhomogeneity is significant for wave propagation. In particular, it facilitates the occurrence of backward waves and increases by up to one order of magnitude the wave attenuation coefficient compared with a homogeneous plasma column having the same average plasma density.

Propagation and Absorption of Electromagnetic Waves in a Coaxial Plasma-Waveguide-System (m=1)

1977 ◽  
Vol 32 (9) ◽  
pp. 935-945 ◽  
Author(s):  
B. Kampmann
Keyword(s):  
Dispersion Relation ◽  
Electron Density ◽  
Discharge Tube ◽  
Plasma Column ◽  
Electromagnetic Waves ◽  
Cold Plasma ◽  
Strong Absorption ◽  
Plasma Waveguide ◽  
Dipole Resonance ◽  
Waveguide System

Abstract The dispersion relation of electromagnetic waves propagating in a coaxial plasma-waveguide-system is solved for a cold plasma. The influence of losses, discharge tube, and radial gradients of electron density are discussed in detail. Strong absorption is found near the dipole resonance of the plasma column.

Sign in / Sign up

Export Citation Format

Share Document