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. © 2009 Elsevier B.V. All rights reserved.
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