Study of the Resistive Wall Mode in Cylindrical Geometry
نویسنده
چکیده
The problem of the resistive wall mode (RWM) is studied in cylindrical geometry and compared to experimental observations from HBT-EP tokamak. In HBT-EP, a dynamical RWM plasma response is studied by applying static, rotating and phase-flip external magnetic perturbations. The plasma response to the applied perturbation is included via the permeability matrix, P = 1/(−s+iα). Here, s is the normalized plasma stability parameter, and α is the normalized plasma rotation parameter. The relatively crude model presented reproduces several key features of the observed mode including downward slope of the amplitude of the mode and oscillatory behavior at saturation.
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