Title :
Generation of cyclotron harmonic waves in the ionospheric modification experiments
Author :
Janabi, A. Hadi Al ; Kumar, Atul ; Sharma, R.P. ; Tripathi, Y.K.
Author_Institution :
Centre for Energy Studies, Indian Inst. of Technol., New Delhi, India
fDate :
2/1/1994 12:00:00 AM
Abstract :
In the present paper, the parametric decay instability of the pump X-mode into electron Bernstein wave (EBW) near second harmonics of electron cyclotron frequency and IBW at different harmonics (ω<nωci; n=2,3,4) is examined. Expressions are derived for homogenous threshold, growth rate and convective threshold for this instability. Applications and relevances of the present investigation to ionospheric modification experiment in the F-layer of the ionosphere as well as during intense electron cyclotron resonance heating in the upcoming MTX tokamak have been given
Keywords :
ionospheric electromagnetic wave propagation; plasma instability; plasma radiofrequency heating; IBW; MTX tokamak; convective threshold; cyclotron harmonic wave generation; electron Bernstein wave; electron cyclotron frequency; growth rate; homogenous threshold; intense electron cyclotron resonance heating; ionosphere F-layer; ionospheric modification; parametric decay instability; pump X-mode; second harmonics; Brillouin scattering; Cyclotrons; Electromagnetic heating; Electromagnetic scattering; Electrons; Electrostatics; Frequency conversion; Ionosphere; Resonance; Stability;
Journal_Title :
Plasma Science, IEEE Transactions on
