Sputtering yield calculation of tritium plasma interacting with beryllium by using atomic simulation environment
DOI:
https://doi.org/10.18686/cest752Keywords:
plasma material interaction; sputtering yield in plasma; PMI (plasmamaterial interactions) in magnetic confinementAbstract
Designing buildings for magnetic fusion devices mostly aims to replicate the interactions between structural material surfaces and plasma. The sputtering effects of plasma ions on the surface structures of various materials are unique. It is essential to take structural deformations into account when constructing structures for Tokamak-type fusion reactors. Tokamak nuclear fusion reactors require a significant amount of research on the ways in which plasma interacts with materials and the structures of these materials. Surfaces can be altered by plasma ions with high energy. It is absolutely necessary to have a solid understanding of the processes that include material surface modification, such as chemical or physical sputtering and retention events. Fusion reactions, which generate heat and energy, can modify the walls of reactors. As a result, reactors produce energy with reduced efficiency. For example, beryllium is the most frequently employed material in the Tokamak reactor divertor. In this study, the positions of beryllium atoms are shown on a flat graph, and calculations for how much material is ejected due to molecular dynamics are done. The simulation employed tritium bombarding energies at a steady electromagnetic force of 3 T, ranging from 5 to 35 keV. The molecular dynamics of the tritium plasma on the beryllium crystal significantly illuminated the plasma material interaction process.
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