Progress in the new ECRH system for ASDEX Upgrade

Author

Leuterer, F. ; Grünwald, G. ; Monaco, F. ; Münich, M. ; Ryter, F. ; Schütz, A. ; Wagner, D. ; Zohm, H. ; Franke, T. ; Dammertz, G. ; Heidinger, H. ; Koppenburg, K. ; Thumm, M. ; Kasparek, W. ; Gantenbein, G. ; Denisov, G.G. ; Litvak, A. ; Zapevalov, V.

Author_Institution

Max-Planck-Inst. fur Plasmaphys., Garching, Germany

fYear

2004

fDate

27 Sept.-1 Oct. 2004

Firstpage

219

Lastpage

220

Abstract

A multi-frequency ECRH system with 4 gyrotrons, tunable in the range of 105-140 GHz, is currently under construction at ASDEX Upgrade with a total power of 4 MW and a pulse length of 10 s. A fast steerable launcher for feedback controlled deposition has been installed 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; millimetre wave tubes; mirrors; plasma radiofrequency heating; plasma toroidal confinement; transmission lines; waveguides; 10 s; 100 ms; 105 to 140 GHz; 4 MW; ASDEX Upgrade; corrugated waveguides; fast steerable launcher; feedback controlled deposition; gyrotrons; multifrequency ECRH system; polarizer mirrors; poloidal steering; transmission line elements; vacuum windows; Frequency; Gyrotrons; Magnetic fields; Mirrors; Physics; Plasma materials processing; Power generation; Power supplies; Resonance; Variable speed drives;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared and Millimeter Waves, 2004 and 12th International Conference on Terahertz Electronics, 2004. Conference Digest of the 2004 Joint 29th International Conference on

Print_ISBN

0-7803-8490-3

Type

conf

DOI

10.1109/ICIMW.2004.1422033

Filename

1422033