Concept of a Helias ignition experiment

Wobig, H.; Andreeva, T.; Beidler, C. D.; Harmeyer, E.; Herrnegger, F.; Igitkhanov, Y.; Kisslinger, J.; Kolesnichenko, Ya. I.; Lutsenko, L. L.; Marchenko, V. S.; Nührenberg, C.; Sidorenko, I.; Turkin, Y.; Wieczorek, A.; Yakovenko, Yu. V.

doi:10.1088/0029-5515/43/9/313

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Concept of a Helias ignition experiment

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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;

/persons/resource/persons109306

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;

/persons/resource/persons110665

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). Concept of a Helias ignition experiment. Nuclear Fusion, 43, 889-898. doi:10.1088/0029-5515/43/9/313.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0027-2E06-C

Abstract

The Helias ignition experiment is an upgraded version of the Wendelstein 7-X experiment. The magnetic configuration is a four-period Helias configuration (major radius 18 m, plasma radius 2.0 m, B = 4.5 T), which presents a more compact option than the five-period configuration. Much effort has been focused on two versions of the four-period configuration. One option is the power reactor HSR4/18 providing at least 3 GW of fusion power and the second is the ignition experiment HSR 4/18i aiming at a minimum of fusion power and the demonstration of self-sustaining burn. The design criteria of the ignition experiment HSR 4/18i 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 describes the vacuum vessel and the shielding blanket. The power balance will be modelled with a transport code and the ignition conditions will be investigated using current scaling laws of energy confinement in stellarators. The plasma parameters of the ignition experiment are: peak density 2–3×10²⁰ m^-3, peak temperature 11–15 keV, average beta 3.6% and fusion power 1500–1700 MW.