PLASMA DRIVEN TRITIUM UPTAKE AND LEAKAGE THROUGH PLASMA-FACING MATERIALS

The goal of the work is development of a computer code for calculation of plasma-driven accumulation of hydrogen isotopes in plasma facing m aterials and of hydrogen permeation through PFM. The feature of the co de if to compare with those used for the same purposes is incorporatio n of the chemisorption state in the model equations. An initial model of the code is described. The code demonstrates very good agreement wi th experiments on hydrogen re-emission and permeation. (C) 1998 Elsevi er Science S.A. All rights reserved.