Demonstration in the Diii-d Tokamak of an Alternate Baseline Scenario for Iter and Other Burning Plasma Experiments

Content Provider	Semantic Scholar
Author	Luce, T. E. Wade Ferrón Hyatt, A. W. Kellman, A. G. Kinsey, J. E. Lahay, Rj Lasnier, C. J. Murakami, Masami Politzer, Peter Scoville, J. T.
Copyright Year	2002
Abstract	OAK A271 DEMONSTRATION IN THE DIII-D TOKAMAK OF AN ALTERNATE BASELINE SCENARIO FOR ITER AND OTHER BURNING PLASMA EXPERIMENTS. Discharges which can satisfy the high gain goals of burning plasma experiments have been demonstrated in the DIII-D tokamak in stationary conditions with relatively low plasma current (q{sub 95} > 4). A figure of merit for fusion gain {Beta}{sub N}H{sub 89}/q{sub 95}{sup 2} has been maintained at values corresponding to Q = 10 operation in a burning plasma for > 6 s or 36 {tau}{sub E} and 2 {tau}{sub R}. The key element is the relaxation of the current profile to a stationary state with q{sub min} > 1, which allows stable operation up to the no-wall ideal {beta} limit. These plasmas maintain particle balance by active pumping rather than transient wall conditions. The reduced current lessens significantly the potential for structural damage in the event of a major disruption.
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Language	English
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Content Type	Text
Resource Type	Article