Measurement of resistive wall mode stability in rotating high-β DIII-D plasmas

H. Reimerdes, J. Bialek, M. S. Chance, M. S. Chu, A. M. Garofalo, P. Gohil, Y. In, G. L. Jackson, R. J. Jayakumar, T. H. Jensen, J. S. Kim, R. J. La Haye, Y. Q. Liu, J. E. Menard, G. A. Navratil, M. Okabayashi, J. T. Scoville, E. J. Strait, D. D. Szymanski, H. Takahashi

Research output: Contribution to journalArticlepeer-review

61 Citations (Scopus)

Abstract

Toroidal plasma rotation of the order of a few per cent of the Alfvén velocity can stabilize the resistive wall mode (RWM) and extend the operating regime of tokamaks from the conventional, ideal magnetohydrodynamic (MHD) no-wall limit up to the ideal MHD ideal-wall limit. The stabilizing effect has been measured in DIII-D passively by measuring the critical plasma rotation required for stability and actively by probing the plasma with externally applied resonant magnetic fields. The comparison of these measurements to predictions of rotational stabilization of the sound wave damping and of the kinetic damping model using the MARS-F code results in qualitative agreement, but also indicates the need for further refinement of the measurements and models.

Original languageEnglish
Pages (from-to)368-376
Number of pages9
JournalNuclear Fusion
Volume45
Issue number5
DOIs
Publication statusPublished - 2005 May 1

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Condensed Matter Physics

Fingerprint

Dive into the research topics of 'Measurement of resistive wall mode stability in rotating high-β DIII-D plasmas'. Together they form a unique fingerprint.

Cite this