Modelling of the effects of divertor recycling conditions and toroidal field direction on divertor power and particle flux asymmetries between and during ELMs with PARASOL for COMPASS-like plasmas

摘要

1.Introduction Particle and energy fluxes to the plasma facing components (PFCs) during edge localized modes (ELMs) are expected to unacceptably shorten the lifetime of PFCs in ITER [1]. Non-linear MHD simulations of ELMs for ITER plasmas, assuming a fluid model for the edge parallel transport, have been made [2]. However, ELM transport in the ITER SOL-divertor plasma is collisionless given the high pedestal plasma temperature [3]. In order to understand the consequences of kinetic effects on the power and particle fluxes to PFCs between ELMs and during ELMs, particle simulations with PARASOL [4, 5] have been carried out for COMPASS H-mode plasmas [6, 7] with two directions of the toroidal field.