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Influence of fine scale turbulence on the transport of high energy populations in burning plasmas

This paper is available in a repository.
This paper is available in a repository.

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Abstract

We investigate the transport of fast ions in the presence of electromagnetic turbulence in an ITER steady state scenario. Linear and nonlinear analyses are carried out focusing on the transport features of passive deuterium. It is shown that the anomalous diffusion of NBI ions in ITER can become important. In particular the neutral beam driven current is radially redistributed by the turbulence, thereby affecting the key properties of this important scenario.