Berlin 2018 – wissenschaftliches Programm
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KFM: Fachverband Kristalline Festkörper und deren Mikrostruktur
KFM 18: Diamond II + Poster
KFM 18.2: Vortrag
Mittwoch, 14. März 2018, 15:30–15:50, E 124
Application of CVD Diamond Discs in High Power Fusion Gyrotrons and Power Plants — •Sebastian Ruess1,2, Gaetano Aiello3, Gerd Gantenbein1, Manuel Gärtner1, Tomasz Rzesnicki1, Theo Scherer3, Dirk Strauss3, Manfred Thumm1,2, Jörg Weggen1, and John Jelonnek1,2 — 1IHM, — 2IHE, — 3IAM-AWP, Karlsruhe Institute of Technology (KIT), 76131 Karlsruhe, Germany
Karlsruhe Institute of Technology (KIT) is doing research and development in the field of megawatt-class RF sources (gyrotrons) for the Electron Cyclotron Resonance Heating (ECRH) systems of the International Thermonuclear Experimental Reactor (ITER) and the DEMOnstration Fusion Power Plant that will follow ITER. In the focus is the development and verification of the European coaxial-cavity gyrotron technology which shall lead to gyrotrons operating at an RF output power significantly larger than 1 MW CW and at an operating frequency up to 240 GHz.
Currently, the KIT is working on high-power broadband microwave output window systems for strongly overmoded waveguides based on ultra-low loss CVD-diamond. The ongoing research is focusing on the electromagnetic properties in combination with the manufacturing of very large windows (up to 180 mm) and the development of advanced technologies for joining of large diamond discs for advanced broadband CVD Brewster-angle windows. The simulation of the electrical large structures is requiring specific care. This presentation will focus on the related multiphysics simulations using the commercial tool CST.