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The Helias reactor HSR4/18

MPS-Authors
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Beidler,  C. D.
Experimental Plasma Physics 3 (E3), Max Planck Institute for Plasma Physics, Max Planck Society;

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Harmeyer,  E.
Experimental Plasma Physics 3 (E3), Max Planck Institute for Plasma Physics, Max Planck Society;

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Herrnegger,  F.
Experimental Plasma Physics 3 (E3), Max Planck Institute for Plasma Physics, Max Planck Society;

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Igitkhanov,  Y.
Experimental Plasma Physics 3 (E3), Max Planck Institute for Plasma Physics, Max Planck Society;

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Kendl,  A.
Tokamak Theory (TOK), Max Planck Institute for Plasma Physics, Max Planck Society;

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Kisslinger,  J.
Experimental Plasma Physics 3 (E3), Max Planck Institute for Plasma Physics, Max Planck Society;

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Nührenberg,  C.
Stellarator Theory (ST), Max Planck Institute for Plasma Physics, Max Planck Society;

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Strumberger,  E.
Tokamak Theory (TOK), Max Planck Institute for Plasma Physics, Max Planck Society;
Relativistic Plasmas, Max Planck Institute for Plasma Physics, Max Planck Society;

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Wobig,  H.
Experimental Plasma Physics 3 (E3), Max Planck Institute for Plasma Physics, Max Planck Society;

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Citation

Beidler, C. D., Harmeyer, E., Herrnegger, F., Igitkhanov, Y., Kendl, A., Kisslinger, J., et al. (2001). The Helias reactor HSR4/18. Nuclear Fusion, 41, 1759-1766.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0027-453D-B
Abstract
The Helias reactor is an upgraded 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 an 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. and the effective helical ripple is below 1%. The article describes the power balance of the Helias reactor, and the blanket and maintenance concepts. The coil system of HSR4/18 comprises 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.