The physics of neoclassical tearing modes and their stabilization by ECCD in ASDEX Upgrade

摘要

An understanding of the physics of neoclassical tearing modes (NTMs) gained through experiments and modelling at ASDEX Upgrade is presented. The onset β_N for NTM is found to be proportional to the normalized ion gyroradius ρ* and independent of the normalized collisionality ν* for a wide range of ν*.