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Abstract
A consistent estimation of the losses of collisionless fast electrons driven by the lower hybrid wave and trapped in magnetic ripples in the Tokamak Tore Supra [Equipe TORE SUPRA, in Proceedings of the 15th Conference on Plasma Physics and Controlled Nuclear Fusion Research, Seville (International Atomic Energy Agency, Vienna, 1995), Vol. 1, IAEA-CN-60/A1-5, p. 105], is carried out using a two-dimensional relativistic bounce-averaged Fokker–Planck solver. A reasonable agreement is found between the simulations and the experimentally observed results obtained by the diagnostic named DRIPPLE (Diagnostic-Ripple) dedicated to magnetic ripple loss measurements. The analysis shows that the radial profile of the ripple loss current is dominated by the shape of the supertrapped domain in momentum space, and is therefore weakly dependent on the lower hybrid wave power absorption.
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