A systematic approach to evaluate the linear stability of Alfvén eigenmodes in the presence of fusion-born -particles is reported. The techniques developed are particularly useful when dealing with scenarios where no experimental guidance is available about which eigenmodes are more easily destabilized by the supra-thermal population. The advantages and limitations of the underlying model chosen to describe the wave-particle interaction are discussed, along with the parallelization of the designed workflow in order to take advantage of massively parallel computer systems. This workflow is tested using a ITER baseline scenario, showing that it is able to routinely single out the most linearly unstable eigenmodes for a given equilibrium configuration. The eigenmodes with highest growth rate were found to be core-localised Toroidal Alfvén Eigenmodes with toroidal mode number , placed near the maximum of the -particle density gradient and within a low magnetic-shear region.
Multi-scale analysis of global electromagnetic instabilities in ITER pre-fusion-power operation plasmas