The electron cyclotron heating system for the stellarator W7-X: Status and recent achievements

Author

Kasparek, W. ; Brand, P. ; Braune, H. ; Dammertz, G. ; Erckmann, V. ; Gantenbein, G. ; Hollmann, F. ; Jonitz, L. ; Kumric, H. ; Laqua, H.P. ; Lechte, C. ; Leonhardt, W. ; Michel, G. ; Noke, F. ; Plaum, B. ; Purps, F. ; Schmid, M. ; Schulz, T. ; Thumm, M.

Author_Institution

Inst. fur Plasmaforschung, Stuttgart Univ., Stuttgart

fYear

2007

fDate

2-9 Sept. 2007

Firstpage

939

Lastpage

940

Abstract

The status and recent achievements of the electron cyclotron heating system at the stellarator W7-X in Greifswald, Germany are discussed. Three prototype gyrotrons and one from a series of 7 are operable now, one additional is under test. The transmission system is ready up to the stellarator hall; part of it has passed high-power tests (900 kW, 30 min). The test of the multi-beam waveguide is in preparation. At present, optics in front of the stellarator, the antennas, as well as in-vessel components are constructed.

Keywords

electron accelerators; gyrotrons; plasma radiofrequency heating; Greifswald Germany; electron cyclotron heating system; gyrotrons; multibeam waveguide; power 900 kW; stellarator W7-X; transmission system; Cyclotrons; Electromagnetic heating; Electrons; Gyrotrons; Millimeter wave communication; Optical waveguides; Plasmas; Prototypes; Resonance; System testing; Electron cyclotron resonance heating; antennas; gyrotrons; millimeter wave transmission;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared and Millimeter Waves, 2007 and the 2007 15th International Conference on Terahertz Electronics. IRMMW-THz. Joint 32nd International Conference on

Conference_Location

Cardiff

Print_ISBN

978-1-4244-1438-3

Type

conf

DOI

10.1109/ICIMW.2007.4516801

Filename

4516801