NBI torque in the presence of magnetic field ripple : experiments and modelling for JET

A.T. Salmi, T. Tala, G. Corrigan, C. Giroud, J. Ferreira, J. Lönnroth, P. Mantica, V. Parail, M. Tsalas, T.W. Versloot, P.C. de Vries, K.-D. Zastrow

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Abstract

Accurate and validated tools for calculating toroidal momentum sources are necessary to make reliable predictions of toroidal rotation for current and future experiments. In this work we present the first experimental validation of torque profile calculation from neutral beam injection (NBI) under toroidal field ripple. We use discharges from a dedicated experimental session on JET where neutral beam modulation technique is used together with time-dependent torque calculations from ASCOT code for making the benchmark. Good agreement between simulations and experimental results is found.
Original languageEnglish
Article number085005
Pages (from-to)085005
Number of pages20
JournalPlasma Physics and Controlled Fusion
Volume53
Issue number8
DOIs
Publication statusPublished - 2011

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