|Title||Operational characteristics of the superconducting high flux plasma generator Magnum-PSI|
|Publication Type||Journal Article|
|Year of Publication||2018|
|Authors||M.J van de Pol, A S. van der Westen, D.UB Aussems, M.A van den Berg, S. Brons, H.JN van Eck, G.G van Eden, J.W Genuit, H.J van der Meiden, T.W Morgan, J. Scholten, J.WM Vernimmen, E.GP Vos, M.R de Baar|
|Journal||Fusion Engineering and Design|
|Keywords||ELMs, ITER, Linear plasma device, Plasma-surface interactions|
The interaction of intense plasma impacting on the wall of a fusion reactor is an area of high and increasing importance in the development of electricity production from nuclear fusion. In the Magnum-PSI linear device, an axial magnetic field confines a high density, low temperature plasma produced by a wall stabilized DC cascaded arc into an intense magnetized plasma beam directed onto a target. The experiment has shown its capability to reach conditions that enable fundamental studies of plasma-surface interactions in the regime relevant for fusion reactors such as ITER: 1023–1025 m−2s−1 hydrogen plasma flux densities at 1–5 eV for tens of seconds by using conventional electromagnets. Recently the machine was upgraded with a superconducting magnet, enabling steady-state magnetic fields up to 2.5 T, expanding the operational space to high fluence capabilities for the first time. Also the diagnostic suite has been expanded by a new 4-channel resistive bolometer array and ion beam analysis techniques for surface analysis after plasma exposure of the target. A novel collective Thomson scattering system has been developed and will be implemented on Magnum-PSI. In this contribution, the current status, capabilities and performance of Magnum-PSI are presented.
|Alternate Title||Fusion Eng. Des.|
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