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Achievements and Challenges in Automated Parameter, Shape and Topology Optimization for Divertor Design KU Leuven

Tine Baelmans, Maarten Blommaert, Wouter Dekeyser, Tijs Van Oevelen
Particle and power exhaust is a key performance issue for next step fusion reactors. Divertors need to be designed to handle power exhaust and to provide sufficient Helium pumping capacity. Plasma edge transport codes such as B2-Eirene [1,2] are indispensable for the design of future divertor concepts, as they allow for the extrapolation of the current understanding of the edge plasma physics to fusion reactor relevant operating regimes. Due to ...

All-Dielectric Antenna Wavelength Router with Bidirectional Scattering of Visible Light KU Leuven

Jiaqi Li, Niels Verellen, Dries Vercruysse, Twan Bearda, Liesbet Lagae, Pol Van Dorpe
An optical antenna forms the subwavelength bridge between free space optical radiation and localized electromagnetic energy. Its localized electromagnetic modes strongly depend on its geometry and material composition. Here, we present the design and experimental realization of a novel V-shaped all-dielectric antenna based on high-index amorphous silicon with a strong magnetic dipole resonance in the visible range. As a result, it exhibits ...

Optimization of ICRH for core impurity control in JET-ILW Universiteit Gent

E Lerche, M Goniche, P Jacquet, D Van Eester, V Bobkov, L Colas, C Giroud, I Monakhov, FJ Casson, F Rimini, et al.
Ion cyclotron resonance frequency (ICRF) heating has been an essential component in the development of high power H-mode scenarios in the Jet European Torus ITER-like wall (JET-ILW). The ICRF performance was improved by enhancing the antenna-plasma coupling with dedicated main chamber gas injection, including the preliminary minimization of RF-induced plasma-wall interactions, while the RF heating scenarios where optimized for core impurity ...