Title :
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
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;
Conference_Titel :
Fusion Engineering, 1989. Proceedings., IEEE Thirteenth Symposium on
Conference_Location :
Knoxville, TN
DOI :
10.1109/FUSION.1989.102401
