The 15 MW microwave generator and launcher of the lower hybrid current drive experiment on JET

Author

Pain, M. ; Brinkschulte, H. ; Bosia, G. ; Brusati, M. ; Dobbing, J.A. ; Ekedahl, A. ; Gammelin, M. ; Gormezano, C. ; Idelon, C. ; Jacquinot, J. ; Jessop, G. ; Kaye, A. ; Lenholm, M. ; Plancoulaine, J. ; Schild, Ph ; Sibley, A. ; Wade, T. ; Walker, C. ; Wa

Author_Institution

JET Joint Undertaking, Abingdon, UK

fYear

1989

fDate

2-6 Oct 1989

Firstpage

1083

Abstract

The lower hybrid current drive experiment on JET (Joint European Torus), which is aimed at generating current in the plasma by launching a wave at 3.7 GHz into the torus, is described. The experiment required building a large high-power microwave generator and antenna. The generator can provide 15 MW for 10 s or 12 MW for 20 s. The power will be fed to a phased-array antenna consisting of 48 stainless steel modules assembled in an array of 384 waveguides. The antenna position will be controlled in real time in order to optimize the coupling to the plasma. The phasing between different modules can be set to vary the N _|| between 1.8 and 2.4

Keywords

Tokamak devices; antennas in plasma; fusion reactor theory and design; plasma radiofrequency heating; 10 s; 12 MW; 15 MW; 20 s; 3.7 GHz; JET; Joint European Torus; antenna position; lower hybrid current drive experiment; microwave generator; microwave launcher; phased-array antenna; phasing; Antenna arrays; Assembly; High power microwave generation; Hybrid power systems; Microwave antennas; Microwave generation; Phased arrays; Plasma waves; Steel; Waveguide components;

fLanguage

English

Publisher

ieee

Conference_Titel

Fusion Engineering, 1989. Proceedings., IEEE Thirteenth Symposium on

Conference_Location

Knoxville, TN

Type

conf

DOI

10.1109/FUSION.1989.102400

Filename

102400