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  MHD limits to tokamak operation and their control

Zohm, H., Gantenbein, G., Isayama, A., Keller, A., La Haye, R. J., Maraschek, M., et al. (2003). MHD limits to tokamak operation and their control. Invited Papers from the 30th European Physical Society Conference on Controlled Fusion and Plasma Physics, A163-A174. doi:10.1088/0741-3335/45/12A/012.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0027-3C88-E Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0027-3C89-C
Genre: Journal Article

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 Creators:
Zohm, H.1, Author              
Gantenbein, G.2, Author
Isayama, A.2, Author
Keller, A.1, Author              
La Haye, R. J.2, Author
Maraschek, M.1, Author              
Mück, A.3, Author              
Nagasaki, K.2, Author
Pinches, S. D.4, Author              
Strait, E. J.2, Author
Affiliations:
1Experimental Plasma Physics 2 (E2), Max Planck Institute for Plasma Physics, Max Planck Society, ou_1856292              
2IPF, Stuttgart University, D-70569 Stuttgart, Germany; JAERI Fusion Research Establishment, Naka, Ibaraki 311-0193, Japan; General Atomics, PO Box 85608, San Diego, CA 92186-5608, USA; Kyoto University, Gokasho Uji, Kyoto 611-0011, Japan, ou_persistent22              
3External Organizations, ou_persistent22              
4Tokamak Theory (TOK), Max Planck Institute for Plasma Physics, Max Planck Society

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Free keywords: 30th European Physical Society Conference on Controlled Fusion and Plasma Physics, St. Petersburg, 2003-07-07 to 2003-07-11
 Abstract: A review of magnetohydrodynamic limits to tokamak operation in terms of current, density and pressure is given. Although the current and density limits in a tokamak usually lead to disruptive termination of the discharge, it is argued that these can be avoided by staying away from the respective limits. This is especially true since operation close to these limits is not really desirable, due to the decreased confinement at very high density and the high disruptivity at low q. On the other hand, the limit to plasma pressure set by neoclassical tearing modes (NTMs) and resistive wall modes (RWMs) is too low to guarantee economic operation of future fusion reactors. Therefore, active control of these two instabilities is now being studied. Noticeable progress has been made by NTM stabilization with ECCD. Avoidance of NTMs and RWMs by tailoring sawteeth and spinning the plasma, shows promising results. Also, experiments on direct RWM stabilization by active coils are showing their first encouraging results.

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

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Title: Invited Papers from the 30th European Physical Society Conference on Controlled Fusion and Plasma Physics
Source Genre: Issue
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Publ. Info: -
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: A163 - A174 Identifier: -

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Title: Plasma Physics and Controlled Fusion
  Alternative Title : Plasma Phys. Control. Fusion
Source Genre: Journal
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Publ. Info: Copyright © Institute of Physics and IOP Publishing Limited 2003
Pages: - Volume / Issue: 45 (12A) Sequence Number: - Start / End Page: - Identifier: -