Hostname: page-component-7c8c6479df-27gpq Total loading time: 0 Render date: 2024-03-27T15:19:25.251Z Has data issue: false hasContentIssue false

Turbulent transport in magnetic confinement: how to avoid it

Published online by Cambridge University Press:  13 March 2009

M. W. Binderbauer
Affiliation:
Department of Physics, University of California, Irvine, California 92717-4575, USA
N. Rostoker
Affiliation:
Department of Physics, University of California, Irvine, California 92717-4575, USA

Abstract

From recent tokamak research, there is considerable experimental evidence that superthermal ions slow down and diffuse classically in the presence of turbulent fluctuations that cause anomalous transport of thermal ions. Further more, research on field-reversed configurations at Los Alamos is consistent with the view that kinetic effects suppress instability growth when the ratio of plasma radius to ion orbital radius is small; turbulence is enhanced and confinement degrades when this ratio increases. Motivated by these experiments, we consider a plasma consisting of large-orbit non-adiabatic ions and adiabatic electrons. For such a plasma, it is possible that the anomalous transport characteristic of tokamaks can be avoided and a compact reactor design becomes viable.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1996

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Al-Salameh, D. et al. 1985 Phys. Rev. Lett. 54, 796.CrossRefGoogle Scholar
Barnes, D. C. et al. 1986 Phys. Fluids 29, 2616.CrossRefGoogle Scholar
Binderbauer, M. W. 1996 On the equilibrium and low frequency stability of energetic large orbit ion beams in a self-colliding system. PhD thesis, University of California at Irvine.Google Scholar
Chen, F. F. 1984 Introduction to Plasma Physics and Controlled Fusion. Plenum Press, New York.CrossRefGoogle Scholar
Cobb, J. et al. 1993 Phys. Fluids B5, 3227.CrossRefGoogle Scholar
Furth, H. P. 1965 Phys. Fluids 8, 2020.CrossRefGoogle Scholar
Glasstone, S. and Lovberg, R. H. 1960 Controlled Thermonuclear Reactions, Chapter 9. Van Nostrand, New York.Google Scholar
Heidbrink, W. W. and Sadler, G. J. 1994 Nucl. Fusion 34, 535.CrossRefGoogle Scholar
Horiuchi, R. and Sato, T. 1989 Phys. Fluids B1, 581.CrossRefGoogle Scholar
Kanno, R. et al. 1995 J. Phys. Soc. Jpn 64, 463.CrossRefGoogle Scholar
Katzenstein, J. and Robertson, S. 1983 Proceedings of the Compact Torus Symposium, Bellevue, WA, 16–20 November, 1982 (ed. Hoffmann, A.L. and Milroy, R.D.) Math. Sciences Northwest, Bellevue, WA.Google Scholar
Landau, L. D. 1937 Z. Eksp. Teor. Fiz. 7, 203.Google Scholar
Maglich, B. C. 1988 Nucl. Instrum. Meth. Phys. Res. A271, 13.CrossRefGoogle Scholar
Marder, B. and Weizner, H. 1970 Plasma Phys. 12, 435.CrossRefGoogle Scholar
Montgomery, D. C. and Tidman, D. A. 1964 Plasma Kinetic Theory McGraw-Hill, New York.Google Scholar
Naitou, H., Kamimura, T. and Dawson, J. 1979 J. Phys. Soc. Jpn 46, 258.CrossRefGoogle Scholar
Robertson, S., Ishizuka, H., Peter, W. and Rostoker, N. 1981 Phys. Rev. Lett. 47, 508.CrossRefGoogle Scholar
Robertson, S., Ishizuka, H., Peter, W. and Rostoker, N. 1982 Phys. Fluids 25, 2353.Google Scholar
Rostoker, N. and Kolb, A. C. 1961 Phys. Rev. 124, 965.CrossRefGoogle Scholar
Rostoker, N. and Kolb, A. C. 1962 Phys. Fluids 5, 636.CrossRefGoogle Scholar
Rostoker, N. and Rahman, H. U. 1992 Nonlinear and Relativistic Effects in Plasmas (ed. Stefan, V.), 116. AIP, New York.Google Scholar
Rostoker, N., Wessel, F. J., Rahman, H. U., Maglich, B. C., Spivey, B. B. and Fisher, A. 1993 Phys. Rev. Lett. 70, 1818.CrossRefGoogle Scholar
Rostoker, N., Binderbauer, M. W. and Monkhorst, H. J. 1996 Comments Plasma Phys. Contr. Fusion (in press).Google Scholar
Ruchti, C. B. and Lovelace, R. V. 1984 Phys. Fluids 27, 1789.CrossRefGoogle Scholar
Schwarzmeier, J. L. and Seyler, C. E. 1984 Phys. Fluids 27, 2151.CrossRefGoogle Scholar
Siemon, R. E. 1996 Proceedings of the 1st Symposium on Current Trends in International Fusion Research, 14–18 November 1994, Washington, DC (ed. Panarella, E.). Plenum Press, New York.Google Scholar
Spivey, B. B. 1992 Confinement of non-adiabatic Vlasov-Maxwellian plasmas. PhD thesis, University of California at Irvine.Google Scholar
Steinhauer, L. C. and Ishida, A. 1996 Phys. Plasmas (in press).Google Scholar
Steinhauer, L. C. et al. 1994 Phys. Plasmas 1, 1523.CrossRefGoogle Scholar
Steinhauer, L. C. et al. 1996 Fusion Technol. (in press).Google Scholar
Tuszewski, M. 1988 Nucl. Fusion 28, 2033.CrossRefGoogle Scholar
Wickham, M. and Robertson, S. 1983 Plasma Phys. 25, 103.CrossRefGoogle Scholar
Wong, H. V., Berk, H. L., Lovelace, R. V. and Rostoker, N. 1991 Phys. Fluids B3, 2973.CrossRefGoogle Scholar