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Investigating Synergistic Effects on W Performance with Magnum-PSI

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Helium Nano-bubble Formation in Tungsten

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Abstract

Understanding synergies is essential in order to better predict the performance of W based materials in future fusion experiments. In this chapter, a systematic study on the linear plasma device Magnum-PSI into the synergistic effects of H/He plasma composition, sample temperature, and radiation damage on H retention, He retention, and microstructural changes in W is described. Incident helium ion energy was found to have the most significant effect on heluium retention and the formation of sub-surface nanobubbles, while hydrogen retention is more strongly influenced by temperature.

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Thompson, M. (2018). Investigating Synergistic Effects on W Performance with Magnum-PSI. In: Helium Nano-bubble Formation in Tungsten. Springer Theses. Springer, Cham. https://doi.org/10.1007/978-3-319-96011-1_6

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