Observation of resistive and ferritic wall modes in a line-tied pinch.

Stabilization of Line Tied Resistive Wall Kink Modes with Rotating Walls

A method suggested by Gimblett[(C. G. Gimblett, Plasma Phys. Controlled Fusion 31, 2183 (1989)] for stabilizing resistive wall modes by using a rotating double wall configuration is applied to a line tied screw pinch equilibrium. The line tied boundary conditions provide an additional stabilizing mechanism relative to instabilities present in periodic cylinders. For a given equilibrium, there e...

The rotating wall machine: a device to study ideal and resistive magnetohydrodynamic stability under variable boundary conditions.

The rotating wall machine, a basic plasma physics experimental facility, has been constructed to study the role of electromagnetic boundary conditions on current-driven ideal and resistive magnetohydrodynamic instabilities, including differentially rotating conducting walls. The device, a screw pinch magnetic geometry with line-tied ends, is described. The plasma is generated by an array of 19 ...

Resistive and ferritic-wall plasma dynamos in a sphere

Effects of three-dimensional electromagnetic structures on resistive-wall-mode stability of reversed field pinches.

In this Letter, the linear stability of the resistive wall modes (RWMs) in toroidal geometry for a reversed field pinch (RFP) plasma is studied. Three computational models are used: the cylindrical code ETAW, the toroidal MHD code MARS-F, and the CarMa code, able to take fully into account the effects of a three-dimensional conducting structure which mimics the real shell geometry of a reversed...

Ideal Internal Kink Modes in a Line - tied Screw Pinch

Yi-Min Huang, Ellen G. Zweibel, and Carl R. Sovinec Center for Magnetic Self-Organization in Laboratory and Astrophysical Plasmas, University of Wisconsin, Madison, Wisconsin 53706 Department of Physics, University of Wisconsin, Madison, Wisconsin 53706 Department of Astronomy, University of Wisconsin, Madison, Wisconsin 53706 Department of Engineering Physics, University of Wisconsin, Madison,...