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Effects of trapped alpha particles on internal kink modes in tokamaks

Published online by Cambridge University Press:  13 March 2009

P. Helander  and
M. Lisak
P. Helander
Affiliation:
Institute for Electromagnetic Field Theory and Plasma Physics, Chalmers University of Technology, S-412 96 Goteborg, Sweden
M. Lisak
Affiliation:
Institute for Electromagnetic Field Theory and Plasma Physics, Chalmers University of Technology, S-412 96 Goteborg, Sweden
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Abstract

The theory of linear interaction between internal kink modes and fusionproduced high-energy alpha particles in a toroidal plasma is extended by including finite-banana-width corrections to the alpha dynamics. An important implication of the theory for the stability properties of kink modes is that the finite-banana-width effects increase the value of the poloidal alpha beta required to attain the stable domain of operation as well as that required to excite the high-frequency fishbone instability. Furthermore, these effects lead to a reduction in the instability growth rate in both the low- and high-frequency unstable regimes.

Type
Research Article
Information
Journal of Plasma Physics , Volume 47 , Issue 2 , April 1992 , pp. 281 - 293
Copyright
Copyright © Cambridge University Press 1992

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References

REFERENCES

Ara, G., Basu, B., Coppi, B., Laval, G., Rosenbluth, M. N. & Wadell, B. V. 1978 Ann. Phys. (NT) 112, 443.CrossRefGoogle Scholar
Bussac, M. N., Pellat, R., Edery, D. & Soule, J. L. 1975 Phys. Rev. Lett. 35, 1638.CrossRefGoogle Scholar
Campbell, D. et al. 1988 Phys. Rev. Lett. 60, 2148.CrossRefGoogle Scholar
Catto, P. J., Tang, W. M. & Baldwin, D. E. 1981 Plasma Phys. 23, 639.CrossRefGoogle Scholar
Chen, L., White, R. B. & Rosenbluth, M. N. 1984 Phys. Rev. Lett. 52, 1122.CrossRefGoogle Scholar
Cheng, C. Z. 1990 Proceedings of the 17th European Conference on Controlled Fusion and Plasma Heating (EPS, Amsterdam, 1990), vol. 14B, part II, p. 910.Google Scholar
Coppi, B., Detragiache, P., Migliuolo, S., Pegoraeo, F. & Porcelli, F. 1989 Phys. Rev. Lett. 63, 2733.CrossRefGoogle Scholar
Coppi, B., Galvao, R., Pellat, R., Rosenbluth, M. N. & Rutherford, P. 1976 Soviet J. Plasma Phys. 2, 533.Google Scholar
Coppi, B., Hastie, R. J., Migliuolo, S., Pegoraro, F. & Porcelli, F. 1988 Phys. Lett. 132A, 267.CrossRefGoogle Scholar
Coppi, B., Migliuolo, S., Pegoraro, F. & Porcelli, F. 1990 Phys. Fluids B 2, 927.CrossRefGoogle Scholar
Coppi, B., Migliuolo, S. & Porcelli, F. 1988 Phys. Fluids 31, 1630.CrossRefGoogle Scholar
Coppi, B. & Porcelli, F. 1986 Phys. Rev. Lett. 57, 2722.CrossRefGoogle Scholar
Heidbrink, W. W. et al. 1986 Phys. Rev. Lett. 57, 835.CrossRefGoogle Scholar
Lisak, M. 1984 Physica Scripta 29, 87.CrossRefGoogle Scholar
McGuire, K. et al. 1983 Phys. Rev. Lett. 50, 891.CrossRefGoogle Scholar
Morris, A. W. et al. 1987 Proceedings of the 14th European Conference on Controlled Fusion and Plasma Heating (EPS, Madrid, 1987) (ed. F. Engelmann and J. L. Alvarez Rivas), vol. 11D, part I, p. 189. European Physical Society.Google Scholar
Nave, M. F. F., Campbell, D., Joffrin, E., Pegoraro, F., Porcelli, F., Smeulders, P. & Thomsen, K. 1989 Proceedings of the 16th European Conference on Controlled Fusion and Plasma Heating (EPS, Venice, 1989) (ed. S. Serge, H. Knoepfel and E. Sindoni), vol. 13B, part II, p. 505. European Physical Society.Google Scholar
White, R. B., Bussac, M. N. & Romanelli, F. 1989 Phys. Rev. Lett. 62, 539.CrossRefGoogle Scholar
White, R. B., Chen, R. B., Romanelli, F. & Hay, R. 1985 Phys. Fluids 28, 278.CrossRefGoogle Scholar