Stability properties of the URAGAN-2M torsatron
- Oak Ridge National Lab., TN (United States)
- Kharkov Physics and Technology Inst. (Ukraine)
A more accurate model of the helical coils has changed previous stability results, which were obtained with a model that used only three filaments for each half-coil. With the improved model, Mercier stability is obtained for parabolic pressure profiles at peak beta values of up to 3% for the standard configuration, which now has an average minor radius [bar a] = 23.3 cm. For a configuration with a smaller plasma radius, [bar a] = 15.2 cm, the maximum peak beta, 5.0%, is limited by equilibrium. The addition of a toroidal field reduces the rotational transform to <0.5. This configuration has access to the second stability regime for Mercier modes when narrow pressure profiles are used at low beta. 11 refs., 14 figs.
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 6485353
- Journal Information:
- Fusion Technology; (United States), Journal Name: Fusion Technology; (United States) Vol. 23:1; ISSN 0748-1896; ISSN FUSTE8
- Country of Publication:
- United States
- Language:
- English
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