Operational characteristics of the superconducting high flux plasma generator Magnum-PSI

M.J. van de Pol, S. Alonso van der Westen, D.U.B. Aussems, Jonathan van den Berg, S. Brons, H. J.N. van Eck, G. G. van Eden, H. J.W. Genuit, H. J. van der Meiden, T. W. Morgan, J. Scholten, J. W.M. Vernimmen, E. G.P. Vos, M. R. de Baar

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

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.

Original languageEnglish
Pages (from-to)597-601
Number of pages5
JournalFusion Engineering and Design
Volume136
Issue numberpart A
DOIs
Publication statusPublished - 1 Nov 2018

Keywords

  • ELMs
  • ITER
  • Linear plasma device
  • Plasma-surface interactions

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