Phase-space Analysis of Resistive Wall Mode Dynamics

POSTER

Abstract

Phase-space analysis in the plane of plasma rotation vs. mode amplitude offers a possible approach to studying the dynamics of resistive wall modes (RWMs). Models for the interaction of RWM growth and rotation braking can be characterized by their trajectories and fixed points in the phase plane, allowing a qualitative comparison of the models with each other and with experiment. This technique is well suited to analysis of RWMs in high beta plasmas, where ELMs and other transient events provide ``kicks" away from a stable fixed point in the phase plane. Preliminary results will be presented.

*Work supported by the US DOE under DE-FC02-04ER54698, DE-FG02-89ER53297, DE-AC02-76CH03073, and DE-FG02-03ER83657.

Authors

  • E.J. Strait

    • U. Toronto
    • General Atomics

  • A.M. Garofalo

    • General Atomics

  • G.L. Jackson

    • General Atomics

  • Rob LaHaye

    • General Atomics
    • EURATOM/UKAEA
    • General Atomic

  • H. Reimerdes

    • Columbia U.
    • Columbia University

  • M.J. Lanctot

    • Columbia University

  • M. Okabayashi

    • Princeton Plasma Physics Laboratory

  • Y. In

    • FAR-TECH, Inc.