Operational characteristics of the high flux plasma generator Magnum-PSI

Abstract In Magnum-PSI (MAgnetized plasma Generator and \{NUMerical\} modeling for Plasma Surface Interactions), the high density, low temperature plasma of a wall stabilized dc cascaded arc is confined to a magnetized plasma beam by a quasi-steady state axial magnetic field up to 1.3 T. It aims at conditions that enable fundamental studies of plasma surface interactions in the regime relevant for fusion reactors such as ITER: 1023-1025 m−2 s−1 hydrogen plasma flux densities at 1-5 eV. To study the effects of transient heat loads on a plasma-facing surface, a high power pulsed magnetized arc discharge has been developed. Additionally, the target surface can be transiently heated with a pulsed laser system during plasma exposure. In this contribution, the current status, capabilities and performance of Magnum-PSI are presented.