Advanced Toroidal Facility II Studies
| Autor: | M.S. Lubell, J. F. Lyon, W. I. van Rij, Robert Noel Morris, James A. Rome, S.P. Hirshman, J. W. Lue, N. Dominguez, L. Dresner, Scott L. Painter, Benjamin A. Carreras, C. L. Hedrick |
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| Rok vydání: | 1990 |
| Předmět: |
Physics
Tokamak Toroid 020209 energy Reference design Nuclear engineering General Engineering 02 engineering and technology Radius 01 natural sciences 010305 fluids & plasmas law.invention law Beta (plasma physics) 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Electric heating Atomic physics Joule heating Stellarator |
| Zdroj: | Scopus-Elsevier |
| ISSN: | 0748-1896 |
| Popis: | Design studies for a low-aspect-ratio, large next-generation stellarator, Advanced Toroidal Facility II (ATF-II), with high-current-density, high-field, stable NbTi/Cu helical windings are described. The design parameters are an average plasma radius of 0.52 m, a major radius of 2 m, and a field on axis of 4 to 5 T, with 10 to 15 MW of heating power. Such a device would be comparable in cope to other next-generation stellarators but would have roughly the same aspect ratio as the tokamaks without, however, the need for current drive to sustain steady-state operation. A number of low-aspect-ratio physics issues need to be addressed in the design of ATF-II, primarily compromises between high-beta capability and good confinement properties. A six-field-period compact torsatron is chosen as a reference design for ATF-II, and its main features and performance predictions are discussed. An integrated (beta capability and confinement) optimization approach and optimization of superconducting windings are also discussed. |
| Databáze: | OpenAIRE |
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