Advanced tokamak research in DIII-D

C. M. Greenfield, M. Murakami, J. R. Ferron, M. R. Wade, T. C. Luce, C. C. Petty, J. E. Menard, T. W. Petrie, S. L. Allen, K. H. Burrell, T. A. Casper, J. C. DeBoo, E. J. Doyle, A. M. Garofalo, I. A. Gorelov, R. J. Groebner, J. Hobirk, A. W. Hyatt, R. J. Jayakumar, C. E. KesselR. J. La Haye, G. L. Jackson, L. L. Lao, J. Lohr, M. A. Makowski, R. I. Pinsker, P. A. Politzer, R. Prater, G. M. Staebler, E. J. Strait, T. S. Taylor, W. P. West

Research output: Contribution to journalArticlepeer-review

32 Scopus citations

Abstract

Advanced tokamak (AT) research in DIII-D was carried out to provide a scientific basis for steady-state high performance operation in plasma devices. The regimes required high toroidal beta to maximize fusion output and high poloidal beta to maximize the self-driven bootstrap current. Resistive wall mode stabilization by plasma rotation and active feedback with non-axisymmetric coils allowed routine operation above the no-wall beta limit. Close coupling approach resulted in fully non-inductively driven plasmas, which was sustained up to 1 s, and approximately equal to one current relaxation time.

Original languageEnglish
Pages (from-to)B213-B233
JournalPlasma Physics and Controlled Fusion
Volume46
Issue number12 B
DOIs
StatePublished - Dec 2004

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