Dielectric response of plasma in reversed field pinches near the ion cyclotron frequency

The dielectric tensor of reversed field pinch (RFP) plasma is calculated near the magnetic axis for cylindrical azimuthally symmetric equilibria in the limit k ⊥ ρ L →0. Particle orbits are calculated to first order in the drift approximation near the axis such that geometrical corrections to gyroph...

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Bibliographic Details
Published in:Physics of plasmas 2002-10, Vol.9 (10), p.4392-4395
Main Author: Svidzinski, V. A.
Format: Article
Language:English
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Summary:The dielectric tensor of reversed field pinch (RFP) plasma is calculated near the magnetic axis for cylindrical azimuthally symmetric equilibria in the limit k ⊥ ρ L →0. Particle orbits are calculated to first order in the drift approximation near the axis such that geometrical corrections to gyrophase are included. It is demonstrated that these corrections are important for evaluation of the plasma heating rate near ion cyclotron resonance in RFPs while they can be neglected in tokamak modeling. Geometrical effects of this kind become important in RFPs because the ratio of poloidal and toroidal magnetic field components is substantially larger in RFPs relative to that in tokamaks.
ISSN:1070-664X
1089-7674
DOI:10.1063/1.1505639