The 8 MW, 8 GHz FTU LHRH system: R and D and design status

Author

Andreani, R. ; Gourlan, C. ; Mirizzi, F. ; Sassi, M. ; Ferro, C. ; Marra, A. ; Orsini, A. ; Fortunato, T. ; Roccon, M.

Author_Institution

Assoc. EURATOM-ENEA, CRE Frascati, Rome, Italy

fYear

1989

fDate

2-6 Oct 1989

Firstpage

1089

Abstract

Plasma heating of the Frascati Tokamak Upgrade, which will be done by means of a lower-hybrid, electron mode, additional heating system rated for pulsed (1-s pulse length) RF power up to 8 MW at a frequency of 8 GHz, is updated. Specially developed gyrotrons will be used as RF-power generators; two different prototypes are undergoing tests. A low-attenuation transmission system, using overmoded waveguides, will feed the coupling structures. A design of the RF coupling structures has been recently developed on the basis of the experience of the Frascati RF group with similar structures. Most of the critical parts of the RF system have already been tested, with promising results

Keywords

Tokamak devices; fusion reactor theory and design; gyrotrons; plasma radiofrequency heating; 1 s; 8 GHz; 8 MW; FTU; Frascati Tokamak Upgrade; LHRH system; design; gyrotrons; low-attenuation transmission system; lower hybrid RF heating; overmoded waveguides; Couplings; Electrons; Gyrotrons; Heating; Plasmas; Prototypes; Radio frequency; Research and development; Testing; Tokamaks;

fLanguage

English

Publisher

ieee

Conference_Titel

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

Conference_Location

Knoxville, TN

Type

conf

DOI

10.1109/FUSION.1989.102401

Filename

102401