Publication

Comparison of m=2, n=1 neo-classical tearing mode limits in JET and DIII-D

Olivier Sauter
2004
Journal Articles

Abstract

Joint experiments have been conducted on JET and DIII-D to study m = 2, n = I neo-classical tearing modes (NTMs). Very similar instability behaviour is observed on both machines and the scaling of the mode island width with beta and the observation of n = I islands at q = 2, strongly points to these modes being driven by neo-classical effects. Identity experiments using closely matched non-dimensional parameters (plasma shape, aspect ratio, q, p* and collisionality) on JET and DIII-D show similar global beta-limits for the NTM. Further scalings, which combine broader data sets from JET and DIII-D, show an approximately linear scaling, or slightly stronger, with ion gyro-radius and a relatively weak dependence on collisionality.

Official source

https://infoscience.epfl.ch/entities/publication/44ee50aa-bd86-4da0-9284-d5923571f4b6

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Olivier Sauter
2004
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/44ee50aa-bd86-4da0-9284-d5923571f4b6

About this result

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