Modeling of feedback and rotation stabilization of the resistive wall mode in tokamaks

M. S. Chu, A. Bondeson, M. S. Chance, Y. Q. Liu, A. M. Garofalo, A. H. Glasser, G. L. Jackson, R. J. La Haye, L. L. Lao, G. A. Navratil, M. Okabayashi, H. Remierdes, J. T. Scoville, E. J. Strait

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49 Citations (Scopus)

Abstract

The modeling of active magnetic feedback and plasma rotation stabilization of the resistive wall mode (RWM) in tokamaks was analyzed. A complete solution for the feedback issue was obtained by assuming the plasma obeys ideal magnetohydrodynamics (MHD) and utilizing a normal mode approach (NMA), for plasma with low rotation. It was shown that poloidal sensors are more effective than radial sensors and coils inside of the vacuum vessel more effective than outside. It was found that the effect of rotation stabilization of the plasma depends on the plasma dissipation model. The results show that rotation reduces the feedback gain required for RWM stabilization.

Original languageEnglish
Pages (from-to)2497-2504
Number of pages8
JournalPhysics of Plasmas
Volume11
Issue number5 PART 2
DOIs
Publication statusPublished - 2004 May

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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