Dresden 2017 – wissenschaftliches Programm
MA 24.3: Topical Talk
Dienstag, 21. März 2017, 10:20–10:50, GER 37
Design, materials composition and manufacturing of components for advanced modular gyrotron prototypes — •Sebastian Ruess1, Gaetano Aiello2, Gerd Gantenbein1, Tomasz Rzesnicki1, Theo Scherer2, Dirk Strauss2, Manfred Thumm1, Jörg Weggen1, and John Jelonnek1 — 1IHM, — 2IAM-WAP, Karlsruhe Institute of Technology (KIT), 76131 Karlsruhe, Germany
In frame of EUROfusion, Karlsruhe Institute of Technology (KIT) is performing major research on future gyrotrons for microwave heating of fusion plasma. Major factor for the success is to gain a fundamental understanding about the basic physics, the right materials composition in the assembly and, finally, the manufacturing technologies for future 2-MW gyrotrons operating in the frequency range from 170 GHz up to 240 GHz. The components of a first pre-prototype 2-MW, 170 GHz long-pulse gyrotron were already successfully in-house manufactured with an excellent quality. Furthermore, welding and solder joints have been achieved with an excellent leakage rate below < 10-12 mbar l/s. In particular, excellent solder joints between CVD diamond and copper as well as stainless steel and dispersion strengthened copper (Glidcop) were achieved. In addition, KIT is strongly involved in the development of ultra-low loss diamond discs for high power gyrotrons and fusion power plants. The ongoing KIT developments are focusing on the manufacturing, joining technologies and cooling concepts for advanced broadband CVD diamond double-disk and Brewster-angle windows.