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  Reduction of the ion drive and ρ*θ scaling of the neoclassical tearing mode

Poli, E., Peeters, A. G., Bergmann, A., Günter, S., & Pinches, S. D. (2002). Reduction of the ion drive and ρ*θ scaling of the neoclassical tearing mode. Physical Review Letters, 88(7): 075001.

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 Creators:
Poli, E.1, Author              
Peeters, A. G.2, Author              
Bergmann, A.1, Author              
Günter, S.1, Author              
Pinches, S. D.2, Author              
Affiliations:
1Tokamak Theory (TOK), Max Planck Institute for Plasma Physics, Max Planck Society, ou_1856309              
2Tokamak Theory (TOK), Max Planck Institute for Plasma Physics, Max Planck Society

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 Abstract: In the theoretical description of the neoclassical tearing mode it is usually assumed that the ion banana width w(b) is much smaller than the island width W. This assumption is questionable at least for the island size at the mode onset. We show that a significant fraction of the (ion) bootstrap current survives inside the island when w(b) is comparable to W. This effect also leads to a linear scaling of beta(theta)(onset) with the normalized ion poloidal gyroradius rho(theta)*, in agreement with the experimental results of ASDEX Upgrade.

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Language(s): eng - English
 Dates: 2002
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: eDoc: 21127
ISI: 000174021100036
 Degree: -

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Title: Physical Review Letters
  Alternative Title : Phys. Rev. Lett.
Source Genre: Journal
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Publ. Info: -
Pages: - Volume / Issue: 88 (7) Sequence Number: 075001 Start / End Page: - Identifier: ISSN: 0031-9007