Cutoff frequencies of accelerating modes propagation inside a cylindrical waveguide filled with radially inhomogeneous magnetized plasma

2018 ◽  
Vol 25 (12) ◽  
pp. 122105
Author(s):  
F. Hedayatian ◽  
M. K. Salem ◽  
S. Saviz ◽  
H. Zakeri-Khatir
Keyword(s):  
Magnetized Plasma ◽  
Cylindrical Waveguide ◽  
Cutoff Frequencies ◽  
Radially Inhomogeneous

scholarly journals Determination of the averaged charge-to-mass ratio of the heavy charged constituents of a magnetoplasma using whistler wave measurements

2010 ◽  
Vol 28 (12) ◽  
pp. 2237-2247 ◽  
Author(s):  
C. Krafft ◽  
B. V. Lundin
Keyword(s):  
Plasma Frequency ◽  
Magnetized Plasma ◽  
Charged Dust ◽  
Mass Ratio ◽  
Cutoff Frequencies ◽  
Wave Measurements ◽  
Ion Plasma ◽  
Light Ions ◽  
Spectrometer Data

Abstract. In a cold magnetized plasma with two light ions of comparable gyrofrequencies and any species of heavy ions and/or charged dust particulates, a technique is developed to recover the relative charge density of the heavy plasma population and to estimate its effective averaged charge-to-mass ratio. Such results can be obtained without using mass spectrometer data but only the measurements of the ion plasma frequency, the electron gyro- and plasma frequencies as well as the two highest ion cutoff frequencies.

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.

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