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Oscillating two-stream instability of a lower hybrid wave in an inhomogenous plasma

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3 Author(s)
Prasad, P.V.S.R. ; Dept. of Phys., Indian Inst. of Technol., New Delhi, India ; Kumar, A. ; Singh, S.

The effect of the density inhomogeneity on the oscillating two-stream instability of a lower hybrid pump wave with a finite wavelength is investigated. The density inhomogeneity introduces dephasing that restricts the interaction region where the matching conditions hold. The loss of energy due to convection from this region introduces a certain convection threshold for the onset of this instability. The coupled differential equations are solved in Fourier space by converting them into an uncoupled eigenvalue equation and then applying a quantization condition. Expressions are obtained for the growth rate and the convective threshold, and the results are applied to the Princeton Large Torus parameters

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Plasma Science, IEEE Transactions on  (Volume:17 ,  Issue: 4 )