Turbulent Plasma transport in the PKU Plasma Test (PPT) device

Turbulent plasma transport causes the loss of particle and energy in magnetized plasma, which decrease the confinement of Tokamak plasma. Recently, a series of experiments have been carried out in the PPT device, to study turbulence transport including particle and energy transport. Combining both the high-speed camera and probe analysis, some problems of turbulence transport have been studied preliminarily. A lot of modes, such as drift wave turbulences, high frequency eigen modes, low frequency coherent structures, etc., are all observed. The interchange of energy and momentum between these modes are also identified. The interaction of multi-modes may play an important role on the radial plasma transport of particle and momentum.