DIII-D advanced tokamak research overview

V. S. Chan, C. M. Greenfield, L. L. Lao, T. C. Luce, C. C. Petty, G. M. Staebler

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

Recent progress in the development of long pulse, high performance discharges on the DIII-D tokamak is reviewed. This is highlighted by a discharge achieving simultaneously a βNH of 9, bootstrap current fraction of 0.5 and non-inductive current fraction of 0.75, sustained for 16 energy confinement times. The physics challenge has changed in the long pulse regime. Non-ideal MHD modes limit the stability, fast ion driven modes may play a role in fast ion transport, which limits the stored energy, and plasma edge behaviour can affect the global performance. New control tools are being developed to address these issues.

Original languageEnglish
Pages (from-to)1137-1144
Number of pages8
JournalNuclear Fusion
Volume40
Issue number6
DOIs
StatePublished - Jun 2000
Externally publishedYes

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