Analysis Method for the Low-Order Resistive Interchange Instability in LHD with Stochastic Magnetic Field Line Structure

doi:https://doi.org/10.1585/pfr.8.2403157

Analysis Method for the Low-Order Resistive Interchange Instability in LHD with Stochastic Magnetic Field Line Structure

Ryosuke Ueda,Masahiko Sato,K. Watanabe,Yutaka Matsumoto,Y. Suzuki,Masafumi Itagaki+2 more-2013-01-01-Plasma and Fusion Research

2PDF

TL;DRAbstract

In Large Helical Device experiments, independent low-order magnetic fluctuations due to the resistive interchange mode are commonly observed; investigating the characteristics of this instability is our ultimate goal. Two new methods for analyzing the single low-order instability in the stochastic region are developed. One method investigates it by constructing the initial single-mode perturbation. The other method investigates it by constructing a reference surface outside the last closed flux surface. The reference surface is necessary for constructing the coordinates that are used to extract the Fourier mode in the stochastic field line structure.

Chat with Paper

AI Agents for this Paper

In Large Helical Device experiments, independent low-order magnetic fluctuations due to the resistive interchange mode are commonly observed; investigating the characteristics of this instability is our ultimate goal. Two new methods for analyzing the single low-order instability in the stochastic region are developed. One method investigates it by constructing the initial single-mode perturbation. The other method investigates it by constructing a reference surface outside the last closed flux surface. The reference surface is necessary for constructing the coordinates that are used to extract the Fourier mode in the stochastic field line structure.

Keywords

InstabilityResistive touchscreenLarge Helical DeviceMagnetic fieldPerturbation (astronomy)Fourier analysisMode (computer interface)Mechanics

Chat

Click to start Chat