Physics of Plasmas
Feedback | Help | Exit
Physics of Plasmas
Search:
   
 
 
 
Previous Article
Magnetic-divertor stabilization of an axisymmetric plasma with anisotropic temperature
Magnetohydrodynamic stabilization of an axisymmetric mirror plasma with a magnetic divertor is studied. An equation is found for the flute modes, which includes the stabilizing influence of ion temper...
Next Article
Isothermal tokamak
An isothermal tokamak, Isomak, is investigated to demonstrate that nearly exact, rigidly toroidally rotating Maxwellian solutions exist for both the ions and the electrons. For the ions this Maxwellia...

The influence of the ion polarization current on magnetic island stability in a tokamak plasma

Phys. Plasmas 13, 122507 (2006); doi:10.1063/1.2402914

Published 19 December 2006

You are not logged in to this journal. Log in

R. Fitzpatrick, F. L. Waelbroeck, and F. Militello
Institute for Fusion Studies, Department of Physics, University of Texas at Austin, Austin, Texas 78712
The influence of the ion polarization current on the stability of a constant-psi magnetic island in a tokamak plasma is investigated numerically using a reduced two-fluid model in two-dimensional slab geometry. The polarization current is found to be negligibly small when the island is either too narrow or too wide. However, under certain circumstances, there exists an intermediate regime in which the polarization current is appreciable, and has a stabilizing influence on the island. This effect may account for the metastable nature of neoclassical tearing modes in tokamak plasmas. ©2006 American Institute of Physics
History: Received 8 September 2006; accepted 8 November 2006; published 19 December 2006
Permalink: http://link.aip.org/link/?PHPAEN/13/122507/1
BUY THIS ARTICLE   (US$24)
Download PDF (394 kB) View Cart

KEYWORDS and PACS

Keywords
PACS
  • 52.30.Ex
    Two-fluid and multi-fluid plasmas
  • 52.55.Tn
    Ideal and resistive plasma MHD modes; kinetic modes
  • YEAR: 2006

RELATED DATABASES


To view database links for this article,
you need to log in.
To view database links for this article,
you need to log in.

PUBLICATION DATA

ISSN:
1070-664X (print)   1089-7674 (online)
Publisher:
AIP is a member of CrossRef AIP

REFERENCES (20)
View in Separate Window/Tab
For access to fully linked references, you need to log in. For access to fully linked references, you need to Log in.
  1. M. N. Rosenbluth, Plasma Phys. Controlled Fusion 41, A99 (1999).
  2. Z. Chang, and J. D. Callen, Nucl. Fusion 30, 219 (1990).
  3. R. Hazeltine, M. Kotschenreuther, and J. Morrison, Phys. Fluids 28, 2466 (1985).
  4. R. Fitzpatrick and F. L. Waelbroeck, Phys. Plasmas 12, 022307 (2005).
  5. A. I. Smolyakov, Plasma Phys. Controlled Fusion 35, 657 (1993).
  6. B. D. Scott, A. B. Hassam, and J. F. Drake, Phys. Fluids 28, 275 (1985).
  7. R. Fitzpatrick, P. G. Watson, and F. L. Waelbroeck, Phys. Plasmas 12, 082510 (2005).
  8. F. L. Waelbroeck, Phys. Rev. Lett. 95, 035002 (2005).
  9. H. R. Wilson, J. W. Connor, R. J. Hastie, and C. C. Hegna, Phys. Plasmas 3, 248 (1996).
  10. O. Sauter, R. J. Buttery, R. Felton, T. C. Hender, D. F. Howell et al., Plasma Phys. Controlled Fusion 44, 1999 (2002).
  11. B. D. Scott, J. F. Drake, and A. B. Hassam, Phys. Rev. Lett. 54, 1027 (1985).
  12. M. Ottaviani, F. Porcelli, and D. Grasso, Phys. Rev. Lett. 93, 075001 (2004).
  13. H. P. Furth, J. Killeen, and M. N. Rosenbluth, Phys. Fluids 6, 459 (1963).
  14. F. L. Waelbroeck and R. Fitzpatrick, Phys. Rev. Lett. 78, 1703 (1997).
  15. R. Fitzpatrick and F. L. Waelbroeck, Phys. Plasmas 12, 022308 (2005).
  16. P. H. Rutherford, Phys. Fluids 16, 1903 (1973).
  17. F. L. Waelbroeck, J. W. Connor, and H. R. Wilson, Phys. Rev. Lett. 87, 215003 (2001).
  18. R. Fitzpatrick and F. L. Waelbroek, Phys. Plasmas 12, 122511 (2005).
  19. R. D. Hazeltine and J. D. Meiss, Plasma Confinement (Dover, Mineola NY, 2003).
  20. S. Balay, V. Eijkhout, W. D. Gropp, L. C. McInnes, and B. F. Smith, “Efficient management of parallelism in object oriented numerical software libraries,” in Modern Software Tools in Scientific Computing, edited by E. Arge, A. M. Bruaset, and H. P. Langtangen (Birkhäuser, Boston, MA, 1997), p. 163.

CITING ARTICLES
For access to citing articles, you need to log in.
For access to citing articles, you need to Log in.


Copyright © American Institute of Physics