2010/02/01 by M. Furukawa, Hiroyuki Hayashi, H. Hayashi +2
Engineering · Physics and Astronomy · #Ionosphere and magnetosphere dynamics #Magnetic confinement fusion research #Particle accelerators and beam dynamics
paper · doi:10.1063/1.3304238
openalex publication_date 2010/02/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/21
The eigenvalue problem is solved for the short-wavelength pressure-driven magnetohydrodynamic modes in configuration with closed magnetic field lines in the poloidal direction. Here we show that the magnetic separatrix (which determines the boundary of the confinement region) provides a substantial stabilizing effect by which the total volume inside the separatrix becomes stable even for very high beta values. The plasma inertia and compressibility are properly formulated to give the correct growth rate of the mode.