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Poloidal electric field due to electron-cyclotron resonance heating in tokamaks

Published online by Cambridge University Press:  13 March 2009

M. Taguchi
Affiliation:
College of Industrial Technology, Nihon University, 2–11–1 Shinei, Narashino-shi, Chiba-ken 275, Japan

Abstract

The poloidal electric field generated by electron-cyclotron resonance heating is investigated for a tokamak plasma in the collisionless regime. This poloidal electric field is calculated by solving an adjoint equation to the linearized Fokker-Planck equation with a quasi-linear diffusion term. It is found from this calculation that the magnitude and the sign of the poloidal electric field depend strongly on the values of the inverse aspect ratio, the poloidal angle of the absorption point, the parallel velocity of resonant electrons normalized by the thermal velocity, and the strength of the relativistic correction to the resonance condition.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1992

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References

REFERENCES

Cairns, R. A., Owen, J. & Lashmore-Davies, C. N. 1983 Phys. Fluids 26, 3475.CrossRefGoogle Scholar
Chan, V. S. & Wong, S. K. 1987 Phys. Fluids 30, 830.CrossRefGoogle Scholar
Hsu, J. Y., Chan, V. S., Harvey, R. W., Prater, R. & Wong, S. K. 1984 Phys. Rev. Lett. 53, 564.CrossRefGoogle Scholar
Hsu, C. T., Catto, P. J. & Sigmar, D. J. 1990 Phys. Fluids B 2, 280.CrossRefGoogle Scholar
Start, D. F. H., O'brien, M. R. & Grace, P. M. V. 1983 Plasma Phys. 25, 1431.CrossRefGoogle Scholar