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Chaotic magnetic field lines in a Tokamak with resonant helical windings

โœ Scribed by R.L. Viana

Publisher
Elsevier Science
Year
2000
Tongue
English
Weight
430 KB
Volume
11
Category
Article
ISSN
0960-0779

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โœฆ Synopsis

We use a Hamiltonian description for magnetic ยฎeld lines in a large aspect ratio Tokamak for describing the eect of resonant helical windings in a perturbative way, taking into account the toroidal correction. We consider the formation of chains of primary (main and satellites) and secondary islands, analysing their interactions to describe the generation of chaotic magnetic ยฎeld lines within a portion of the plasma column. This chaotic structure is responsible for disruptive instabilities that may spoil plasma conยฎnement in the Tokamak. Results are compared with numerical integration of magnetic ยฎeld line equations.

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