FusEdWeb: Fusion Energy Education

Glossary of Plasma Physics and Fusion Energy Research

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See also the Plasma Dictionary.

  Term: X-Point
  Definition: Place where the poloidal magnetic field vanishes in such a way that two flux surfaces appear to cross, e.g. where the main plasma joins the divertor (see entry) or between magnetic islands. Location where magnetic reconnection takes place. (See magnetic reconnection; see also divertors and O-point.)