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Error-field penetration in reversed magnetic shear configurations
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10.1063/1.4811391
/content/aip/journal/pop/20/6/10.1063/1.4811391
http://aip.metastore.ingenta.com/content/aip/journal/pop/20/6/10.1063/1.4811391
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Schematic geometry: and are the outer and inner boundaries, respectively; and are the outer and inner rational surfaces, respectively. The dashed line on denotes the error-field perturbation.

Image of FIG. 2.
FIG. 2.

Radial profiles for magnetic field and current in the three equilibrium states. , , and represent the stable, marginal, and unstable states, respectively.

Image of FIG. 3.
FIG. 3.

Temporal evolutions of perturbation amplitude (PAPV) on the rational surface and the island width. The initial equilibrium is the same as reported in Ref. with one single rational surface, and parameters are given as follows: , , and .

Image of FIG. 4.
FIG. 4.

The stable state, (a) and (b) temporal evolutions of the PAPV and , and the island width and ; (c) and (d) temporal evolution of the PAPV in the radial direction. (a) and (c) show the unlocked case with , whereas (b) and (d) show the locked case with .

Image of FIG. 5.
FIG. 5.

Dependence of the critical perturbation value on the initial plasma velocity in the stable case.

Image of FIG. 6.
FIG. 6.

The unstable state, (a) and (b): temporal evolutions of the PAPV and , and the island width and ; (c) and (d): temporal evolution of the PAPV in the radial direction. (a) and (c) show the unlocked case with , whereas (b) and (d) show the locked case with .

Image of FIG. 7.
FIG. 7.

The marginal state, (a) and (b): temporal evolutions of the PAPV and , and the island width and ; (c) and (d): temporal evolution of the PAPV in the radial direction. (a) and (c) show the unlocked case with , whereas (b) and (d) show the locked case with .

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/content/aip/journal/pop/20/6/10.1063/1.4811391
2013-06-17
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Error-field penetration in reversed magnetic shear configurations
http://aip.metastore.ingenta.com/content/aip/journal/pop/20/6/10.1063/1.4811391
10.1063/1.4811391
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