Surface effects on plasma-driven tritium permeation through metals
The model for the plasma-driven tritium permeation proposed by Doyle and Brice [I. Vac. Sci. Technol. A 5 (4) (1987) 2311] and by Waelbroeck et al. [Forschungazentrum, Iulich, Germany, Iul-1996, 1984] has been developed. An improved analytical expression for the plasma-driven tritium permeation in the steady state is presented. Using the presented analytical expression, the influence of surface conditions on the front and the back sides of a metal has been considered for the plasma-driven permeation of tritium through both endothermic and exothermic metals. The presented pictures allow us to define the steady-state tritium permeation in a wide range of the surface conditions: as for an absolutely clean surface and a bare (presence of small amounts of impurities) surface as for contaminated with different impurities surface. This result can be useful for choosing the plasma-facing material for the future steady-state fusion device.
Bibliographic Reference: An article published in: Elsevier; Journal of Nuclear Materials, 290-293 (2001) pp.459-463
Availability: An article published in: Elsevier; Journal of Nuclear Materials, 290-293 (2001) pp.459-463
Record Number: 200013460 / Last updated on: 2001-06-27
Original language: en
Available languages: en