改良されたドップラートモグラフィー分光を用いた球状トカマクの合体のイオン加熱特性

抄録

Axial scan of 2D Doppler tomography measurement made clear detailed 2D profiles of ion temperature during and after merging of two spherical tokamak (ST) plasmas. The magnetic reconnection heats plasma ions in the downstream, causing preferential ion heating around a specific flux surface. The merging STs were found to form the hollow ion temperature profile inside the produced ST.