9th MHD Stability Workshop

Stabilization of the RWM in DIII-D

9th Workshop on MHD Stability Control - Back to Basics

U.S. Japan Workshop

Princeton Plasma Physics Laboratory

November 21 - 23, 2004

Updated November 23, 2004

Many of the presentations have been collected and are posted below. These represent work in progress and should not be quoted without permission from the author. Questions should be directed to the authors. If you notice a missing link or web page problem, contact the webmaster

Opening Session -

Welcome to MHD Stability Control Workshop K. Yamazaki
Contributions of Anders Bondeson Y. Liu
Stability Control for Steady-State High Beta in JT-60U A. Isayama

Modeling Feedback, Resistive Wall Mode Stabilization

Optimizing Feedback in Plasma Devices A. Boozer
Adaptive Stochastic Feedback Controllers A. Sen
RWM Algorithms F. Perkins
Control of RWMs with Radial and Poloidal Sensors J. Finn
Advantage of Poloidal Sensors A. Garofalo
Simulation of RWMs with M3D H. Strauss
Resistive Plasma and RWMs by MARS. J. Menard
RWM Stability in the Ion Kinetic Regime B. Hu
Basic Question of Wall Times J. Bialek
Discussion G. Navratil

Non-Axisymmetric Devices

Need for Active MHD Control in Helical Devices M. Zarnstorff
Tokamak/Helical Configurations Based on LHD K. Yamazaki
Suppression of Islands in HYBTOK-II Y. Uesugi

Plasma Response to Non-Axisymmetric Fields

Contributions of Torkil Jensen to Stability A. Garafalo
Modeling Resonant Field Amplification in JET Y. Liu
RFA Experiments on the T2R RFP J. Drake
Dynamic Ergodic Divertor on TEXTOR H. Koslowski
MAST Error Field Studies G. Turri

Ballooning, NTMS and Other

Neoclassical Tearing Mode Issues Revisited C. Hegna
MHD Stability Based on Transport Analysis T. Ozeki
Stabilization of Ballooning by Rotation Shear M. Furukawa
Study of q=1 Triple-Tearing A. Bierwage
Sawtooth Control for NTM Prevention on JET S. Coda
Effects of Driven EXB Rotation on MHD D. Maurer
Coupled MHD Perturbations in Tokamak I. Semenov

Active Control Experiments

Active Feedback of Levitated Dipole Coil, M. Mauel
RFX Program on Active Control S. Martini
Comparisons with MHD Simulations of Feedback Experiments in the T2R RFP R. Paccagnella
Rot. Stab. and RFA in DIII-D H. Reimerdes
Effect of Noise and Time Delay on RWM Feedback System Performance O. Katsuro-Hopkins
Feedback with High Speed FPGA A. Klein
Wall Stabilization in the ST S. Sabbagh
Rotating Wall Machine W. Bergerson

ITPA MHD Summary T. Strait

Next MHD Stability Workshop proposed for Madison, WI, October 31 &endash; November 2, 2005