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1979•Physical Review LettersRequires access

Lower-Hybrid-Wave Heating in the Alcator- A Tokamak

J.J. Schuss, S. Fairfax, B. R. Kusse, R. R. Parker, M. Porkoláb, D. Gwinn, I. H. Hutchinson, E. S. Marmar, D. Overskei, D.S. Pappas, L. S. Scaturro, S. Wolfe

Open publisher page 59 citations

Abstract

We report the results of injecting 90 kW of microwave power near the lower hybrid frequency into the Alcator-$A$ tokamak through a two-waveguide array. The observed plasma heating is in disagreement with that expected from linear waveguide-plasma coupling theory. From these results and auxiliary rf probe measurements we infer the nonlinear formation of a high-${k}_{\ensuremath{\parallel}}$ wave power spectrum at the plasma edge.

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What this paper is about

We report the results of injecting 90 kW of microwave power near the lower hybrid frequency into the Alcator-$A$ tokamak through a two-waveguide array. The observed plasma heating is in disagreement with that expected from linear waveguide-plasma coupling theory. From these results and auxiliary rf probe measurements we infer the nonlinear formation of a high-${k}_{\ensuremath{\parallel}}$ wave power spectrum at the plasma edge.

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OpenAlex reports 59 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

We report the results of injecting 90 kW of microwave power near the lower hybrid frequency into the Alcator-$A$ tokamak through a two-waveguide array. The observed plasma heating is in disagreement with that expected from linear waveguide-plasma coupling theory. From these results and auxiliary rf probe measurements we infer the nonlinear formation of a high-${k}_{\ensuremath{\parallel}}$ wave power spectrum at the plasma edge.

Key concepts: Tokamak, Plasma, Lower hybrid oscillation, Microwave, Waveguide, Coupling (piping), Physics, Alcator C-Mod

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