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Deciphering The Underlying Physical Processes Responsible For Synergistic Interactions Between Hydrogen And Noble Gases In Materials Under Fusion Relevant Conditions, Zachary Bergstrom Bergstrom

Doctoral Dissertations

The objective of this research is to understand the underlying physical processes responsible for the synergistic interactions between hydrogen and noble gases in materials under fusion relevant conditions. The formation of He bubbles within plasma-facing components is a common phenomena that is expected to occur in the structural materials and first-wall, as well as the divertor, and is has been shown to strongly modify the retention properties for hydrogen of these materials. Molecular dynamics simulations were performed to assess the behavior of H around high pressure helium bubbles. The simulations revealed that hydrogen is strongly trapped to the periphery of …