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  4. Destabilization of fast-ion-induced long sawteeth by localized current drive in the JET tokamak
 
research article

Destabilization of fast-ion-induced long sawteeth by localized current drive in the JET tokamak

Eriksson, L.G.
•
Mueck, A.  
•
Sauter, O.  orcid-logo
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2004
Physical Review Letters

In a tokamak fusion reactor the energetic alpha particles will transiently stabilize the magnetohydrodynamic activity causing sawtooth oscillations. The crash events terminating long sawtooth free periods can provide seed islands for neoclassical tearing modes [O. Sauter et al., Phys. Rev. Lett. 88, 105001 (2002)]. To shorten the sawtooth periods localized current drive near the q=1 surface is a possibility. This Letter provides the first experimental evidence for the effectiveness of this method in the different physics regime associated with fast-ion-induced long sawteeth on the JET tokamak.

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Type
research article
DOI
10.1103/PhysRevLett.92.235004
Web of Science ID

WOS:000221961900023

Author(s)
Eriksson, L.G.
Mueck, A.  
Sauter, O.  orcid-logo
Coda, S.  
Mantsinen, M.J.
Mayoral, M.L.
Westerhof, E.
Buttery, R.J.
McDonald, D.
Johnson, T.
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Date Issued

2004

Published in
Physical Review Letters
Volume

92

Issue

23

Article Number

235004

Subjects

JET

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
CRPP  
SPC  
Available on Infoscience
April 16, 2008
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/22095
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