Stellarator: Difference between revisions
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(moved H-1NF to list of defunct stellarators (it has been moved to China and its current status is unclear)) |
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* ATF (Oak Ridge, TN, USA) | * ATF (Oak Ridge, TN, USA) | ||
* CHS (Japan) | * CHS (Japan) | ||
* [http://prl.anu.edu.au/H-1NF H-1NF] (Canberra, Australia) | |||
* [http://ncsx.pppl.gov/ NCSX] (Princeton, NJ, USA) - cancelled before construction was completed | * [http://ncsx.pppl.gov/ NCSX] (Princeton, NJ, USA) - cancelled before construction was completed | ||
* [[W7-AS]] (Garching, Germany, 1988-2002) | * [[W7-AS]] (Garching, Germany, 1988-2002) | ||
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* [http://fusion.auburn.edu/ CAT/CTH] (Auburn, USA) | * [http://fusion.auburn.edu/ CAT/CTH] (Auburn, USA) | ||
* [http://www.center.iae.kyoto-u.ac.jp/plasma/index.html Heliotron-J] (Kyoto, Japan) | * [http://www.center.iae.kyoto-u.ac.jp/plasma/index.html Heliotron-J] (Kyoto, Japan) | ||
* [http://www.hsx.wisc.edu/ HSX] (Madison, WI, USA) | * [http://www.hsx.wisc.edu/ HSX] (Madison, WI, USA) | ||
Revision as of 22:51, 6 February 2019
A stellarator is a magnetic confinement device. The rotational transform is predominantly generated by external coils - as opposed to a tokamak, in which the poloidal field is generated by plasma currents. Hybrid concepts (including the concepts known as quasi-axisymmetry and quasi-omnigeneity) employ both external coils and self-generated (bootstrap) currents (e.g. NCSX).
Classification of stellarators
Somewhat arbitrarily, stellarators may be classified according to the type of magnetic configuration.
- Torsatron / Heliotron: the rotational transform is produced by an external helical coil surrounding the plasma.
- Heliac: a stellarator with a toroidally helical magnetic axis.
- Helias: advanced stellarator with modular coils.
Defunct stellarators
- ATF (Oak Ridge, TN, USA)
- CHS (Japan)
- H-1NF (Canberra, Australia)
- NCSX (Princeton, NJ, USA) - cancelled before construction was completed
- W7-AS (Garching, Germany, 1988-2002)
Operational stellarators
- CAT/CTH (Auburn, USA)
- Heliotron-J (Kyoto, Japan)
- HSX (Madison, WI, USA)
- LHD (Toki, Japan)
- TJ-II (Madrid, Spain)
- TJ-K (Stuttgart, Germany)
- TU Heliac (Tohoku Univ., Sendai, Japan)
- UST-1 (Spain) - tabletop experiment
- WEGA (Greifswald, Germany)
- W7-X (Greifswald, Germany)
Future stellarators
- QPS (in design phase, TN, USA)
- STELL (in design phase, University of Lorraine, France, in collaboration with IPP Greifswald)
See also
- Stellarator reactor
- Stellarator optimization
- International Stellarator and Heliotron Workshop
- Coordinated Working Group Meeting
- Stellarator symmetry
- Stellarator News
- ARIES Project (conceptual design of a compact stellarator)
- Spherical Stellarator design study
References
- M. Wakatani, Stellarator and Heliotron devices, Oxford University Press, New York and Oxford (1998) ISBN 0-19-507831-4
- P. Helander, Theory of plasma confinement in non-axisymmetric magnetic fields, Rep. Prog. Phys. 77 (2014) 087001