Deposition patterns of fast ions on plasma facing components in W7-X

摘要

The losses of fast ions (65 keV deuterons, 3 MeV protons and 1 MeV tritons) and their deposition patterns on the plasma facing components (PFCs) are studied for a high-nT_T scenario of the Helias type stellarator W7-X. For these computations a system of numerical codes is used which allows self-consistent computation of finite-β equilibria and the corresponding magnetic fields, tuacing of guiding centres of fast particles taking into account slowing down and pitch angle scattering and determination of the deposition patterns of lost ions on the PFCs.