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The addition of rf heating to an NBI-driven target discharge is observed to reduce the toroidal rotation frequency. Experiments on this effect were performed on JET using (H)-D and ({3}He)-D minority ICRH to vary the bulk electron to ion heating ratio. However, to lowest order, there is no clear difference in the two heating scenarios. We apply a recent model of Nishijima et al. [4] based upon the degradation of confinement with auxiliary power, and find that these JET data are in reasonable agreement with it.

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Authors: DEGRASSIE J S, General Atomics, San Diego (US);ERIKSSON L-G, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR);NOTERDAEME J-M, Max-Planck-Institut für Plasmaphysik, EURATOM Association, Teilinstitut Greifswald, Greifswald (DE)
Bibliographic Reference: An oral paper given at: Sixteenth Topical Conference on Radio Frequency Power in Plasmas Organised by: Plasma Science & Fusion Center, Cambridge (US) Held at: Park City, Utah USA
Availability: Available from Association EURATOM-CEA, Departement de Recherches sur la Fusion Controlee, CEA Cadarache, F-13108 St Paul-Lez-Durance, France Tel: (+33) 4 42 25 70 01; Fax: (+33) 4 42 25 64 21 E-mail:
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