Resistive wall mode stabilization with internal feedback coils in DIII-D

E. J. Strait, J. M. Bialek, I. N. Bogatu, M. S. Chance, M. S. Chu, D. H. Edgell, A. M. Garofalo, G. L. Jackson, R. J. Jayakumar, T. H. Jensen, O. Katsuro-Hopkins, J. S. Kim, R. J. La Haye, L. L. Lao, M. A. Makowski, G. A. Navratil, M. Okabayashi, H. Reimerdes, J. T. Scoville, A. D. Turnbull

Research output: Contribution to journalArticlepeer-review

114 Citations (Scopus)

Abstract

A set of twelve coils for resistive wall mode (RWM) stabilization were installed inside the DIII-D vacuum vessel. Rotational stabilization of the RWM was sustained for more than 2.5 s, with feedback-controlled error field correction. The required correction field was smaller than with the experimental coils, consistent with a better match to the mode spectrum of the error field, using the internal coils. The results show that the coils have allowed wall stabilization in plasmas with toroidal beta up to 6%, almost 50% greater than the no wall limit.

Original languageEnglish
Pages (from-to)2505-2513
Number of pages9
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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