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The maximum beta that can be sustained for a long pulse in the International Thermonuclear Experimental Reactor (ITER) shaped plasmas in DIII-D with q(95) approximately greater than 3, edge localized modes (ELM) and sawteeth is found to be limited by resistive tearing modes, particularly m/n = 3/2 and 2/1. At low collisionality comparable to that which will occur in ITER, the beta limit is a factor of two below the usually expected n = infinity ballooning and n = 1 kink ideal limits.

Additional information

Authors: LA HAYE R J ET AL, General Atomics, San Diego (US);CALLEN J D ET AL, University of Wisconsin, Madison (US);DESHPANDE S ET AL, Princeton Plasma Physics Laboratory (US);SAUTER O ET AL, CRPP-EPFL, Lausanne (CH);WILSON H R, AEA Fusion, Culham Laboratory, Abingdon, Oxon (GB)
Bibliographic Reference: Article: 16th IAEA Fusion Energy Conference, Montreal (CA), October 7-11, 1996
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