Determination of Equilibrium Plasma Density and Magnetic Field Profiles Using Magnetoacoustic Oscillations

摘要

The theory of magnetoacoustic oscillations has recently been extended to cover the general case of oscillations in a finite beta, current carrying, cylindrical plasma column. The analysis, which includes the dissipation mechanisms of resistivity and viscosity, enables the characteristics of the oscillations to be determined for arbitrary axisymmetric equilibrium magnetic field and current configurations (and the associated density and temperature profiles). In the present note, this theory is used to explore the possibility that measurements of parameters of the oscillations made external to the plasma, could be used to determine equilibrium magnetic field and current profiles in diffuse pinches. (Atomindex citation 10:481177)