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Physics Basis for an Ignited Long-Pulse Tokamak

P. H. Rutherford

Fusion Science and Technology

Volume 4 / Number 2P2 / September 1983 / Pages 36-45


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Recent advances in tokamak research have led to an improved understanding of the plasma requirements for achieving long pulse ignited burn in a tokamak plasma. This paper presents an assessment of these requirements in the areas of plasma energy confinement, plasma stability at high beta-values, plasma heating, particle and impurity control, and non-inductive current drive. In all areas, the physics basis appears adequate to support a near-term demonstration of a fusion reactor core — a long-pulse ignition experiment — in a device of acceptable overall size and cost.

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