The optimized li advanced tokamak scenario with high bootstrap current fraction

Y. R. Lin-Liu, A. D. Turnbull, M. S. Chu, J. R. Ferron, R. L. Miller, T. S. Taylor

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

Equilibrium and stability analyses have identified a class of tokamak configurations with conventional safety factor profiles (q0∼qmin≳1) at moderately high li(li∼1.0), and high normalized β(βN∼3.5-4.0), that are stable to the ideal n = 1 kink without the requirement of wall stabilization. In contrast to previously identified high li, high βN equilibria, these configurations have high bootstrap current fractions (fBS∼50%-70%); they require only modest central current drive for maintaining steady state and are therefore compatible with advanced tokamak (AT) operation. Strong plasma shaping is crucial for achieving the high β and high bootstrap fraction simultaneously.

Original languageEnglish
Pages (from-to)3934-3940
Number of pages7
JournalPhysics of Plasmas
Volume6
Issue number10
DOIs
Publication statusPublished - 1999 Oct

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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