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Kinetic linear model of the interaction of helical magnetic perturbations with cylindrical plasmas
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10.1063/1.3551740
/content/aip/journal/pop/18/2/10.1063/1.3551740
http://aip.metastore.ingenta.com/content/aip/journal/pop/18/2/10.1063/1.3551740
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

JET-like background profiles of the plasma used in the modeling. Other parameters: (toroidal field on the axis), (big radius), poloidal plasma velocity is assumed to be zero. Background magnetic field and plasma current density are computed from the given profiles and equilibrium equations in cylindrical geometry. Background electric field is defined to satisfy the value of perpendicular ion velocity.

Image of FIG. 2.
FIG. 2.

The electron (solid) and ion (dashed) perpendicular velocities (diamagnetic plus ), with vertical lines marking the radial position of the rational surfaces .

Image of FIG. 3.
FIG. 3.

Form-factors computed by previous model in two different frames, moving along -axis with (solid) and (dashed) for the perturbation harmonics (−5,1), (−4,1), (−3,1), and (−2,1) and frequency . Vertical lines show resonance surfaces with the values of safety factor printed on the upper axis.

Image of FIG. 4.
FIG. 4.

Form-factors as in Fig. 3 computed by the present model.

Image of FIG. 5.
FIG. 5.

Form-factors computed by present model in different orders of Larmor radius expansion (solid), (dashed), and (dotted) for the perturbation harmonics (−2,1), (−3,1), (−4,1), (−3,2), (−5,2), and (−7,2) and frequency . Vertical lines show resonance surfaces with the values of safety factor printed on the upper axis.

Image of FIG. 6.
FIG. 6.

Toroidal torque as a function of the perturbation frequency for the resonant harmonic for (solid), (dashed), and (dotted) orders of the finite Larmor radius expansion. Four vertical lines show the positions of various characteristic electron frequencies: 0 - diamagnetic, 1 - electric rotation , 2 - , 3 - correction.

Image of FIG. 7.
FIG. 7.

Toroidal torque as a function of the perturbation frequency for the nonresonant harmonic for (solid), (dashed), and (dotted) orders of the finite Larmor radius expansion.

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/content/aip/journal/pop/18/2/10.1063/1.3551740
2011-02-01
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Kinetic linear model of the interaction of helical magnetic perturbations with cylindrical plasmas
http://aip.metastore.ingenta.com/content/aip/journal/pop/18/2/10.1063/1.3551740
10.1063/1.3551740
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