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

Volume

22

Issue

1

fYear

1994

fDate

2/1/1994 12:00:00 AM

Firstpage

65

Lastpage

70

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<nω_ci; 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;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/27.281552

Filename

281552