Characterisation of edge filamentary structures in the 3D geometry of Wendelstein 7-X limiter plasmas

摘要

Turbulent structures elongated along the magnetic field lines are observed in many different magnetized plasmas, including fusion plasmas of tokamaks and stellarators. Those structures, often referred to as blobs/filaments, are investigated typically in the scrape-off layer (SOL) and at the plasma edge inside the last closed flux surface (LCFS).