Application of the Radioluminography Method for the Analysis of the Distribution of Small Amounts of Tritium in Electronic-Induced Defects in Perspective Materials for Fusion Reactors

The relevance of research of the interaction of hydrogen isotopes with the fusion reactor materials is primarily due to issues of economics and safety. The study of the influence of defects in materials on the accumulation of hydrogen has a special importance. In this work the radioluminography technique was used to analyze the distribution of tritium in electron-induced tungsten defects. The sensitivity of this technique to the magnitude of electron-induced defects from the point of view of detecting the accumulated tritium is established. The repeated analysis of tungsten samples was performed to assess the change in the distribution of tritium after long-term storage in the atmosphere, because this method allows to analyze repeatedly.

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