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The Helias reactor HRS4/18

  • Beidler, C.D.
  • Harmeyer, E.
  • Herrnegger, F.
  • Max-Planck-Institut fuer Plasmaphysik, G...
Publication Date
Jan 01, 2001
OpenGrey Repository


The Helias reactor is a scaled-up version of the Wendelstein 7-X experiment. A straightforward extrapolation of Wendelstein 7-X leads to HSR5/22, which has 5 field periods and a major radius of 22 m. HSR4/18 is a more compact Helias reactor with 4 field periods and 18 m major radius. Stability limit and energy confinement times are nearly the same as in HSR5/22, thus the same fusion power (3000 MW) is expected in both configurations. Neoclassical transport in HSR4/18 is very low; the effective helical ripple is below 1%. This paper describes the power balance of the Helias reactor, the blanket and maintenance concept. The coil system of HSR4/18 is comprised of 40 modular coils with NbTi-superconducting cables. The reduction from 5 to 4 field periods and the concomitant reduction in size will also reduce the cost of the Helias reactor. (orig.) / Available from TIB Hannover: RA 71(III/268) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische Informationsbibliothek / SIGLE / DE / Germany

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