Proto-CIRCUS Tilted-Coil Tokamak-Torsatron Hybrid: Design and Construction
| Autor: | Clark, A. W., Doumet, M., Hammond, K. C., Kornbluth, Y., Spong, D. A., Sweeney, R., Volpe, F. A. |
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| Rok vydání: | 2014 |
| Předmět: | |
| Zdroj: | Fusion Engineering and Design 89 (2014) 2732-2737 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1016/j.fusengdes.2014.07.012 |
| Popis: | We present the field-line modeling, design and construction of a prototype circular-coil tokamak-torsatron hybrid called Proto-CIRCUS. The device has a major radius R = 16 cm and minor radius a < 5 cm. The six "toroidal field" coils are planar as in a tokamak, but they are tilted. This, combined with induced or driven plasma current, is expected to generate rotational transform, as seen in field-line tracing and equilibrium calculations. The device is expected to operate at lower plasma current than a tokamak of comparable size and magnetic field, which might have interesting implications for disruptions and steady-state operation. Additionally, the toroidal magnetic ripple is less pronounced than in an equivalent tokamak in which the coils are not tilted. The tilted coils are interlocked, resulting in a relatively low aspect ratio, and can be moved, both radially and in tilt angle, between discharges. This capability will be exploited for detailed comparisons between calculations and field-line mapping measurements. Such comparisons will reveal whether this relatively simple concept can generate the expected rotational transform. Comment: 10 pages, 10 figures, 1 table |
| Databáze: | arXiv |
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