Kinetic effect of thermal force on impurity transport: Simulation of JT-60SA divertor with integrated divertor code SONIC

Using an impurity Monte-Carlo code, IMPMC, the kinetic effect of thermal force on the He transport is investigated for JT-60SA detached plasmas. Without the recycling process, the kinetic effect of the thermal force is found to increase the He density in the divertor region by a factor of ∼2, compared with the conventional (fluid) evaluation. However, the kinetic effect is masked by the recycling at the target plates.