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The development and application of tritium permeation barriers (TPB) are crucial for safe and economical fusion reactor operation. In order to specify the requirements and important characteristics of TPB, the deuterium permeation flux through two different fusion relevant steels, namely Eurofer97 and 316L(N)-IG, were measured and compared. Furthermore, the influence of oxidized and rough surfaces on the deuterium permeation flux was investigated. With this study, the influence of technical or plasma roughened surfaces on the permeation behavior can be estimated. Keywords: Deuterium permeation, Eurofer97, 316L(N)-IG, Surface oxidation, Surface roughness
Houben et al. (Thu,) studied this question.