Quasisymmetry: Difference between revisions

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* Quasihelical (QH) symmetry, on which the design of the [http://www.hsx.wisc.edu/ HSX stellarator] (operational) is based.<ref>[[doi:10.1585/pfr.3.S1002|J.N. Talmadge, F.S.B. Anderson, D.T. Anderson, C. Deng, W. Guttenfelder, K.M. Likin, J. Lore, J.C. Schmitt, K. Zhai, ''Experimental Tests of Quasisymmetry in HSX'', Plasma and Fusion Research '''3''' (2008) S1002]]</ref>
* Quasihelical (QH) symmetry, on which the design of the [http://www.hsx.wisc.edu/ HSX stellarator] (operational) is based.<ref>[[doi:10.1585/pfr.3.S1002|J.N. Talmadge, F.S.B. Anderson, D.T. Anderson, C. Deng, W. Guttenfelder, K.M. Likin, J. Lore, J.C. Schmitt, K. Zhai, ''Experimental Tests of Quasisymmetry in HSX'', Plasma and Fusion Research '''3''' (2008) S1002]]</ref>
* Quasipoloidal (QP) symmetry, on which the design of the [http://web.utk.edu/~qps/ QPS stellarator] (under construction) is based.<ref>[[doi:10.1088/0029-5515/45/8/020|D.A. Spong, S.P. Hirshman, J.F. Lyon, L.A. Berry and D.J. Strickler, ''Recent advances in quasi-poloidal stellarator physics issues'', Nucl. Fusion '''45''' (2005) 918]]</ref>
* Quasipoloidal (QP) symmetry, on which the design of the [http://web.utk.edu/~qps/ QPS stellarator] (under construction) is based.<ref>[[doi:10.1088/0029-5515/45/8/020|D.A. Spong, S.P. Hirshman, J.F. Lyon, L.A. Berry and D.J. Strickler, ''Recent advances in quasi-poloidal stellarator physics issues'', Nucl. Fusion '''45''' (2005) 918]]</ref>
* Quasi-axisymmetry (QA)
* Quasi-axisymmetry (QA), on which the design of the NCSX stellarator was based<ref>[[doi:10.1063/1.873557|M.Yu. Isaev et al, ''The pseudo-symmetric optimization of the National Compact Stellarator Experiment'', Phys. Plasmas '''6''', 8 (1999) 3174]]</ref>


== See also ==
== See also ==

Revision as of 14:05, 14 September 2013

Quasisymmetric (quasihelically symmetric) plasma equilibria are non-axisymmetric configurations in which the magnetic field strength depends only on one angular coordinate within the magnetic flux surfaces. [1] This concept is part of the program of stellarator optimization (designing stellarators to have reduced Neoclassical transport).

Types of quasisymmetry:

  • Quasihelical (QH) symmetry, on which the design of the HSX stellarator (operational) is based.[2]
  • Quasipoloidal (QP) symmetry, on which the design of the QPS stellarator (under construction) is based.[3]
  • Quasi-axisymmetry (QA), on which the design of the NCSX stellarator was based[4]

See also

References