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(EXP3/02) Neoclassical Tearing Mode Studies in JET

T. C. Hender¹⁾, D. N. Borba²⁾, R. J. Buttery¹⁾, D. F. Howell¹⁾, G. T. A. Huysmans³⁾, R. J. La Haye⁴⁾, P. J. Lomas¹⁾, A. Martynov⁵⁾, M. Mantsinen⁶⁾, S. D. Pinches⁷⁾, O. Sauter⁵⁾, M. Zabiego^3)
 
1) Euratom/UKAEA Fusion Association, Culham Science Centre, Abingdon, UK.
²⁾ EFDA-JET Close Support Unit, Culham Science Centre, Abingdon, UK.
³⁾ Association Euratom/CEA, CEA CAdarache, Saint-Paul-Lez-Durance, France
⁴⁾ General Atomics, San Diego, California, USA
⁵⁾ CRPP Euratom-Confédération Suisse, Ecole Polytechnique Fédéral de Lausanne, Switzerland
⁶⁾ Association Euratom-Tekes, Helsinki University of Technology, Finland
⁷⁾ Association Euratom/IPP, Max Planck Institute, Garching, Germany

Abstract.  Studies of (3,2) and (2,1) Neo-classical Tearing Modes (NTMs) in JET are presented. The effects of plasma shape and edge safety factor ( q₉₅) on the $\beta$-limits set by NTMs are addressed, as are results on the effect of ICRF heating. For the (2,1) NTMs initial comparisons with the $\beta$-limit thresholds from the DIII-D tokamak are presented.

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