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Recent development in Helias reactor studies

MPS-Authors
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Wobig,  H.
Stellarator Theory (ST), Max Planck Institute for Plasma Physics, Max Planck Society;

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Andreeva,  T.
Stellarator Dynamics and Transport (E5), Max Planck Institute for Plasma Physics, Max Planck Society;
Experimental Plasma Physics 3 (E3), Max Planck Institute for Plasma Physics, Max Planck Society;

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Beidler,  C. D.
Stellarator Theory (ST), 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;
Stellarator System Studies, Max Planck Institute for Plasma Physics, Max Planck Society;

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

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Citation

Wobig, H., Andreeva, T., Beidler, C. D., Harmeyer, E., Herrnegger, F., Igitkhanov, Y., et al. (2003). Recent development in Helias reactor studies. In Fusion Energy 2002. Vienna: International Atomic Energy Agency.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0027-3C92-5
Abstract
The Helias reactor (HSR) is an upgraded version of the Wendelstein 7-X experiment, which is under construction in the city of Greifswald. Recent studies have been focussed on a 4-period Helias configuration (major radius 18 m, plasma radius 2.0 m, B = 5 T), which presents a more compact option than the five period configuration. Main effort has been focussed on two versions of the the 4-period configuration, one option is the power reactor HSR 4/18 providing at least 3 GW of fusion power and the second option is the ignition experiment HSR 4/18/i aiming at a minimum of fusion power and the demonstratioon of self-sustaining burn. The design criteria of the ignition experiment HSR 4/18/i are the following: The experiment should demonstrate: A safe and reliable route to ignition, self-sustained burn without external heating, steady-state operation during several hundred seconds, reliability of the technical components and tritium breeding in a test blanket. The paper discusses the technical issues of the coil system and the blanket. The plasma will be modelled with a transport code and the ignition conditions will be investigated using current scaling laws of energy confinement.