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Scaling of the Plas...
Scaling of the Plasma Rotation Needed for Stabilizing the n = 1 Resistive Wall Mode (Ideal Kink) in the DIII D Tokamak
- Article/chapterEnglish2004
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LIBRIS-ID:oai:research.chalmers.se:7150263d-2e94-48b5-85e4-ae68c7370924
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https://research.chalmers.se/publication/2482URI
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Language:English
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Summary in:English
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Subject category:art swepub-publicationtype
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Subject category:ref swepub-contenttype
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Experiments in the DIII-D tokamak show that the n = 1 ideal kink can be stabilized by a resistive wall if the plasma is rotating fast enough. A database of the onset of the n = 1 resistive wall mode as a function of the equilibrium toroidal magnetic field, the plasma density and the toroidal rotation has been assembled for plasmas with beta between the theoretically predicted no wall and ideal wall stability limits. The critical rotation frequency is found to scale as the inverse of the Alfvén time with ? ?A 0.02 (evaluated at the q = 2 surface at ? 0.6) or ? ?S 0.7, where ?S is the sound time. The dependence of ? ? A or ? ?S on ?N/?N,no wall from 1?2 is weak and suggests the plasmas are in the 'intermediate dissipation' regime.
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Bondeson, Anders,1953Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)elfab
(author)
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Chu, M.S.
(author)
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Garofalo, A.M.
(author)
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Liu, Yueqiang,1971Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)elfliu
(author)
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Navratil, G.A.
(author)
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Okabayashi, M.
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Reimerdes, H.
(author)
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Strait, E.J.
(author)
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Chalmers tekniska högskola
(creator_code:org_t)
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In:Nuclear Fusion44, s. 1197-1741-43260029-5515
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La Haye, R.J.
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Bondeson, Anders ...
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Chu, M.S.
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Garofalo, A.M.
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Liu, Yueqiang, 1 ...
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Navratil, G.A.
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Okabayashi, M.
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Reimerdes, H.
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Strait, E.J.
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- NATURAL SCIENCES
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NATURAL SCIENCES
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Nuclear Fusion
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Chalmers University of Technology