Practical beta limit in ITER shaped discharges in DIII-D and its increase by higher collisionality
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.
Bibliographic Reference: Article: 16th IAEA Fusion Energy Conference, Montreal (CA), October 7-11, 1996
Record Number: 199811285 / Last updated on: 1998-10-27
Original language: en
Available languages: en