Low‐beta equilibrium and stability for anisotropic pressure closed field line plasma confinement systems

A formalism has been developed to analyze the equilibrium and stability of low‐beta anisotropic pressure plasmas confined in closed field line magnetic systems. This formalism, based on a joint use of paraxial (long‐thin) and low‐beta approximations, allows self‐consistent equilibrium and stability...

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Bibliographic Details
Published in:Physics of plasmas 1996-02, Vol.3 (2), p.536-542, Article 536
Main Authors: Pastukhov, V. P., Ilgisonis, V. I., Subbotin, A. A.
Format: Article
Language:English
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Summary:A formalism has been developed to analyze the equilibrium and stability of low‐beta anisotropic pressure plasmas confined in closed field line magnetic systems. This formalism, based on a joint use of paraxial (long‐thin) and low‐beta approximations, allows self‐consistent equilibrium and stability consideration of rather general magnetic systems with nonuniform axis curvature and longitudinal profiles of toroidal and multipole poloidal field. Strong pressure anisotropy, corresponding to enhanced plasma pressure in mirror cells of the system, may also be considered. Nonconventional features of anisotropic pressure equilibria have been revealed. Application of the above formalism to the recently proposed linked mirror neutron source (LMNS) confirms the basic principles of the LMNS concept, but calculations based on this formalism have appreciably corrected some LMNS parameters. The LMNS longitudinal pressure profile and magnetic field distribution are optimized.
ISSN:1070-664X
1089-7674
DOI:10.1063/1.871880