Separatrix

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A separatrix is a boundary between domains with distinct dynamical behaviour. [1] [2]

In the fusion context, the term is used to describe:

  • The boundary between closed and open field lines, separating the toroidally confined region from the region where field lines connect to material surfaces (such as divertors, limiters, or walls).
  • The boundary between the inside of a magnetic island to the surrounding region.

References

  1. ↑ Separatrix (Encyclopaedia of Mathematics)
  2. ↑ Wikipedia:Separatrix
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