Magnetic Fields and Plasmas

The concept of a flux conserving flow of field lines is addressed. It is shown that the concept breaks down at magnetic nulls, points or lines where the magnetic field vanishes, and at closed magnetic field lines. A few properties of magnetic nulls are discussed, and a canonical representation of ma...

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Bibliographic Details
Published in:Fusion science and technology 2002-03, Vol.41 (2T), p.27-40
Main Author: Schep, T.J.
Format: Article
Language:English
Subjects:
Boundary conditions
Differential equations
Eigenvalues and eigenfunctions
Electric fields
Hamiltonians
Linearization
Magnetic fields
Magnetic flux
Matrix algebra
Plasma theory
Online Access:Get full text
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Summary:The concept of a flux conserving flow of field lines is addressed. It is shown that the concept breaks down at magnetic nulls, points or lines where the magnetic field vanishes, and at closed magnetic field lines. A few properties of magnetic nulls are discussed, and a canonical representation of magnetic fields is introduced. This representation is illustrated with the example of an axisymmetric tokamak configuration with closed magnetic surfaces.
ISSN:1536-1055
1943-7641
DOI:10.13182/FST02-A11963500