Magnetohydrodynamic Stability of a Sharp Boundary Toroidal Plasma

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概要

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• In the toroidal coordinates, a stability analysis is presented for a toroidally symmetrical, sharp boundary plasma. The beta ratio β and aspect ratio, R_p/r_p, are assumed to be arbitrary. In the equilibrium, the maximum poloidal beta ratio β_p is evaluated as Mas β_p=1/2 (R_p/r_p+1). For the kink mode, Curves of β vs a safety factor q and curves of β_p vs β in the marginal stability are described for the several aspect rations. Both curves show that the stable region for a fat plasma is wider than for a slender one. The curve of β vs q depends on the aspect ratio even at β=0, and the plasma is unstable for all values of q, if a value of β exceeds a critical value.

• 社団法人日本物理学会の論文
• 1976-11-15

著者

• Honma Toshihisa

  Department Of Electrical Engineering Faculty Of Engineering Hoddaido University

• Honma Toshihisa

  Department Of Electricity Faculty Of Engineering University Of Hokkaido

• Kito Masafumi

  Electrotechincal Laboratory

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• MHD Stability Analysis of Axisymmetric Surface Current Model Tokamaks Close to the Spheromak Regime
• Magnetohydrodynamic Stability of an Axisymmetric Toroidal Sharp-Boundary Plasma with Flattened Cross Section
• The Vacuum Poloidal Flux Functions Satisfying of the Grad-Shafranov Equation in the Flat-Ring Cyclide Coordinate System
• The Formulation of the Wall Stabilization Problem of an Axisymmetrical Toroidal Sharp-Boundary Plasma with a Horizontally Elongated Noncircular Cross Section
• A Criterion for Stability of Surface-Preserving Modes in Axisymmetric Toroidal Plasmas
• A Criterion for Stability of High-m Quasikink Modes and Its Growth Rates in Plasma in an External Gravitational Field
• A Stability Condition of Plasma for Quasi-Interchange Modes in Externel Gravitational Potential
• Magnetohydrodynamic Stability of a Sharp Boundary Toroidal Plasma

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