Tokamak equilibria with. beta. close to 1
Equilibrium calculations have been done for a High-Beta Tokamak experiment, that has been under consideration in Los Alamos. The geometry studied was that of a torus with a major radius R/sub 0/ of 30 cm and a racetrack-shaped minor cross section of a height of 48 cm and a width of 24 cm. A metal shell around the discharge vessel keeps the magnetic surfaces closed and inside the vessel so that force-free currents can flow along the field lines. Results showing equilibria at very high beta have been obtained with a computer program. It appears that the beta limit for equilibrium has disappeared and that the force-free currents and the elongation of the minor cross section allow equilibria with a beta close to 1 at a small shift of the magnetic axis. There is a strong relation between these pinch-like equilibria and the Flux Conserving Tokamak (F.C.T.).
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 5035027
- Report Number(s):
- LA-UR-77-2864; CONF-7709101-1; TRN: 78-008861
- Resource Relation:
- Conference: High-beta theory workshop, Varenna, Como, Italy, Sep 1977
- Country of Publication:
- United States
- Language:
- English
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