Recent results on Wendelstein 7-X have shown that stellarators are a viable candidate for a magnetic confinement fusion power plant. Renaissance Fusion is a start-up based in Grenoble, France, that is planning to construct a high-field stellarator based on high-temperature superconductors in the coming 10 years. However, scaling existing designs to high-field regimes will require accurate modelling of particle losses. In this project, the student will use particle-tracing codes being developed at IPFN/IST to integrate particle trajectories in order to generate particle transport predictions for the magnetic equilibrium under consideration at Renaissance Fusion. If needed, the student will also recommend changes to the said equilibrium (and, correspondingly, to the magnetic coils design) in order to improve confinement of alpha particles and thermal ions. The student will be based in Lisbon at IST, but will travel to Grenoble to collaborate with researchers at Renaissance Fusion. This mobility will be funded by FuseNet support and Renaissance Fusion.