Title :
Current status of the new ECRH system for ASDEX upgrade
Author :
Wagner, D. ; Grünwald, G. ; Leuterer, F. ; Manini, A. ; Monaco, F. ; Münich, M. ; Ryter, F. ; Schütz, H. ; Zohm, H. ; Franke, T. ; Heidinger, R. ; Koppenburg, K. ; Thumm, M. ; Kasparek, W. ; Gantenbein, G. ; Denisov, G.G. ; Litvak, A. ; Zapevalov, V.
Author_Institution :
Max-Planck-Inst. fur Plasmaphys., Germany
Abstract :
The first two-frequency gyrotron has been installed in the new multi-frequency ECRH system at the ASDEX Upgrade Tokamak experiment. In its final stage the system consist of 4 gyrotrons, tunable in the range 105-140 GHz with a total power of 4 MW and a pulse length of 10 s. It employs a fast steerable launcher for feedback controlled deposition that allows for poloidal steering of 10° within 100 ms. Transmission line elements, such as corrugated waveguides, polarizer mirrors and vacuum windows, are designed to cope for this frequency band.
Keywords :
Tokamak devices; gyrotrons; plasma radiofrequency heating; submillimetre wave tubes; 10 s; 105 to 140 GHz; 4 MW; ASDEX upgrade; Tokamak experiment; corrugated waveguides; fast steerable launcher; feedback controlled deposition; multi-frequency ECRH system; polarizer mirrors; poloidal steering; transmission line elements; two-frequency gyrotron; vacuum windows; Adaptive control; Frequency; Gyrotrons; Magnetic fields; Mirrors; Plasma materials processing; Plasma transport processes; Power supplies; Resonance; Variable speed drives;
Conference_Titel :
Infrared and Millimeter Waves and 13th International Conference on Terahertz Electronics, 2005. IRMMW-THz 2005. The Joint 30th International Conference on
Print_ISBN :
0-7803-9348-1
DOI :
10.1109/ICIMW.2005.1572388
