Completion of the 8 MW Multi-Frequency ECRH System at ASDEX Upgrade

Autor: M. Kircher, M. Schubert, E. A. Solyanova, F. Leuterer, Andreas Meier, Burkhard Plaum, Dirk Strauss, Aleksandr Grigorievich Litvak, Carsten Lechte, V. E. Myasnikov, T.A. Scherer, L. G. Popov, E. M. Tai, John Jelonnek, G. G. Denisov, V. I. Malygin, G. Gantenbein, M. Münich, Manfred Thumm, J. Stober, H. Zohm, D. Wagner, W. Kasparek, A. V. Chirkov, V. O. Nichiporenko, F. Monaco, A. Zach
Přispěvatelé: ASDEX Upgrade Team, Max Planck Institute for Plasma Physics, Max Planck Society
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: 2019 44th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz)
ISSN: 2162-2027
Popis: Over the last 15 years, the Electron Cyclotron Resonance Heating (ECRH) system at the ASDEX Upgrade tokamak has been upgraded from a 2 MW, 2 s, 140 GHz system to an 8 MW, 10 s, dual frequency system (105/140 GHz). Eight gyrotrons were in routine operation during the current experimental campaign. All gyrotrons are step-tunable operating at 105 and 140 GHz with a maximum output power of about 1 MW and 10 s pulse length. The system includes 8 transmission lines, mainly consisting of oversized corrugated waveguides (I.D. = 87 mm) with overall lengths between 50 and 70 meters including quasi-optical sections at both ends. Further improvements of the transmission lines with respect to power handling and reliability are underway.
Databáze: OpenAIRE