Resistive stability of 2/1 tearing modes in DIII-D plasmas with 1/1 resonance

D. P. Brennan, M. S. Chu, R. J. La Haye, L. L. Lao, T. H. Osborne, A. D. Turnbull, L. E. Sugiyama

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We have shown that the ideal outer region uncoupled Δ′ solution alone is insufficient for determining the MHD stability of a tearing mode in toroidal geometry. Accurate equilibrium reconstructions are taken in this study, and qualitative agreement is found between the onset point of the mode (Figure Presented) in experiment and that in the analysis. All equilibria considered are ideal stable (including the 1/1 mode) despite the existence of a q=1 surface. This work supports the validity and relevance of classic resistive MHD stability theory of high temperature toroidal plasmas and can lead to testing various physics effects, in the inner layer and the outer region, on mode stability in comparison with experiment.

Original languageEnglish
Title of host publication33rd EPS Conference on Plasma Physics 2006, EPS 2006 - Europhysics Conference Abstracts
Pages768-771
Number of pages4
Publication statusPublished - 2006 Dec 1
Event33rd European Physical Society Conference on Plasma Physics 2006, EPS 2006 - Rome, Italy
Duration: 2006 Jun 192006 Jun 23

Publication series

Name33rd EPS Conference on Plasma Physics 2006, EPS 2006
Volume1

Other

Other33rd European Physical Society Conference on Plasma Physics 2006, EPS 2006
Country/TerritoryItaly
CityRome
Period06-06-1906-06-23

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

Fingerprint

Dive into the research topics of 'Resistive stability of 2/1 tearing modes in DIII-D plasmas with 1/1 resonance'. Together they form a unique fingerprint.

Cite this