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The JET Team1 (presented by G. Huysmans)
1 see Appendix to IAEA-CN-69/OV1/2
JET Joint Undertaking, Abingdon, Oxfordshire, United Kingdom
Abstract. Neo-classical tearing modes have been identified in JET
ELMy H-mode discharges at medium to high beta. The n=2 modes as
observed in both
ECE and SXR data, have a clear island structure and a global character. The
critical normalised beta at the onset of the modes is found to scale with the
normalised Larmor radius. The scaling with collisionality is much weaker
and has a negative power.
IAEA 2001
