Stellarator: Difference between revisions

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A stellarator is a magnetic confinement device. The rotational transform is predominantly generated by external coils - differently to tokamaks for which the poloidal field is generated by plasma currents. Hybrid concepts employ both external coils and self-generated ([[Bootstrap current|bootstrap]]) currents (e.g. NCSX).
A stellarator is a magnetic confinement device. The [[Magnetic shear|rotational transform]] is predominantly generated by external coils - differently to tokamaks for which the poloidal field is generated by plasma currents. Hybrid concepts employ both external coils and self-generated ([[Bootstrap current|bootstrap]]) currents (e.g. NCSX).


[[File:NCSX_plasmaVessel.jpg|200px|thumb|right|NCSX plasma vessel.]]
[[File:NCSX_plasmaVessel.jpg|200px|thumb|right|NCSX plasma vessel.]]

Revision as of 08:26, 23 October 2009

A stellarator is a magnetic confinement device. The rotational transform is predominantly generated by external coils - differently to tokamaks for which the poloidal field is generated by plasma currents. Hybrid concepts employ both external coils and self-generated (bootstrap) currents (e.g. NCSX).

NCSX plasma vessel.

Defunct stellarators

  • ATF (USA)
  • W7-AS (Germany, 1988-2002)
  • CHS (Japan)
  • NCSX (USA, cancelled before construction was completed)

Operational stellarators

Future stellarators

  • W7-X (under construction, Germany)
  • QPS (in design phase, USA)

See also