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  Disruption studies in ASDEX Upgrade

Pautasso, G., Egorov, S., Finken, K. H., Gruber, O., Herrmann, A., Fuchs, C. J., et al. (2003). Disruption studies in ASDEX Upgrade. In Fusion Energy 2002. Vienna: International Atomic Energy Agency.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0027-3D11-1 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0027-3D12-0
Genre: Conference Paper

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 Creators:
Pautasso, G.1, Author              
Egorov, S.2, Author
Finken, K. H.2, Author
Gruber, O.3, Author              
Herrmann, A.4, Author              
Fuchs, C. J.4, Author              
Maraschek, M.5, Author              
Neu, G.5, Author              
Nakamura, Y.2, Author
Rohde, V.4, Author              
Savtchkov, A.2, Author
Seidel, U.4, Author              
Streibl, B.4, Author              
Tichmann, C.1, Author              
Suttrop, W.5, Author              
Tardini, G.4, Author              
Van Eester, D.2, Author
JET EFDA Contributors2, Author
Affiliations:
1Tokamak Theory (TOK), Max Planck Institute for Plasma Physics, Max Planck Society, ou_1856309              
2Technical University, St. Petersburg, Russia; Institut für Plasmaphysik, Forschungszentrum Juelich, Association KFA-EURATOM, Member of the Trilateral euregio Cluster (TEC), Juelich, Germany; Japan Atomic Energy Research Institute, Nala-machi, Naka-gun, Ibaraki, Japan, ou_persistent22              
3Tokamak Theory (TOK), Max Planck Institute for Plasma Physics, Max Planck Society
4Experimental Plasma Physics 1 (E1), Max Planck Institute for Plasma Physics, Max Planck Society, ou_1856295              
5Experimental Plasma Physics 2 (E2), Max Planck Institute for Plasma Physics, Max Planck Society, ou_1856292              

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 Abstract: Disruption generate large thermal and mechanical stresses on the tokamak components. For a future reactor disruptions have a significant impact on the design since all loading conditions must be analyzed in accordance with stricter design criteria (due to safety or difficult maintenance). Therefore the uncertainties affecting the predicted stresses must be reduced as much as possible with a more comprehensive set of measurements and analyses in this generation of experimental machines, and avoidance/predictive methods must be developed further. The study of disruptions on ASDEX Upgrade is focused on these subjects, namely on: (1) understanding the physical mechanisms leading to this phenomenon and learning to avoid it or to predict its occurrence (with neural networks, for example) and to mitigate its effects; (2) analyzing the effects of disruptions on the machine to determine the functional dependence of the thermal and mechanical loads upon the discharge parameters. This allows to dimension or reinforce the machine components to withstand these loads and to extrapolate them to tokamaks still in the design phase; (3) learning to mitigate the consequence of disruptions.

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Language(s): eng - English
 Dates: 2003
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Internal
 Degree: -

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Title: 19th Fusion Energy Conference
Place of Event: Lyon (FR)
Start-/End Date: 2002-10-14 - 2002-10-19

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Title: Fusion Energy 2002
Source Genre: Proceedings
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Publ. Info: Vienna : International Atomic Energy Agency
Pages: CD-ROM Volume / Issue: - Sequence Number: EX/P4-14 Start / End Page: - Identifier: -