TJ-II:Magnetic field: Difference between revisions

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The complexity of the TJ-II magnetic field is patent from the following two examples, in which a magnetic field property is mapped onto the last closed [[Flux surface|flux surface]] (configuration 100_44_64).
The complexity of the TJ-II magnetic field is patent from the following two examples, in which a magnetic field property is mapped onto the last closed [[Flux surface|flux surface]] (configuration 100_44_64). The influence of the [[TJ-II:Coil system|toroidal field coils]] is clearly visible (there are 32 toroidal field coils, leading to the striped pattern), as well as that of the [[TJ-II:Coil system|circular/helical coils]] (continuous red stripe in the toroidal direction in both figures).


[[File:TJ-II AbsB.jpg|800px|thumb|center|TJ-II: Abs(B)]]
[[File:TJ-II AbsB.jpg|800px|thumb|center|TJ-II: Abs(B)]]
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== See also ==
== See also ==
* [[TJ-II:Magnetic coordinates]]
* [[TJ-II:Magnetic coordinates]]
* [[TJ-II:Coil system]]

Revision as of 11:13, 11 October 2009

The complexity of the TJ-II magnetic field is patent from the following two examples, in which a magnetic field property is mapped onto the last closed flux surface (configuration 100_44_64). The influence of the toroidal field coils is clearly visible (there are 32 toroidal field coils, leading to the striped pattern), as well as that of the circular/helical coils (continuous red stripe in the toroidal direction in both figures).

TJ-II: Abs(B)

Absolute value of the magnetic field, |B| (T).

TJ-II: Curvature κN

Normal magnetic curvature of the magnetic field, κN. Definition:

With this definition, positive values of κN are stable.

See also