Author/Authors :
Kasparek، نويسنده , , Alan W. and Brand-Miller، نويسنده , , P. and Braune، نويسنده , , H. and Dammertz، نويسنده , , G. and Erckmann، نويسنده , , V. and Gantenbein، نويسنده , , G. and Hollmann، نويسنده , , F. and Grünert، نويسنده , , M. and Kumric، نويسنده , , H. and Jonitz، نويسنده , , L. and Laqua، نويسنده , , H.P. and Leonhardt، نويسنده , , W. and Michel، نويسنده , , G. and Noke، نويسنده , , F. and Plaum، نويسنده , , B. and Purps، نويسنده , , F. Ghika-Schmid، نويسنده , , M. and Schulz، نويسنده , , T. and Schwِrer، نويسنده , , K. and Thumm، نويسنده , , M. and Weissgerber، نويسنده , , M.، نويسنده ,
Abstract :
The stellarator W7-X, which is currently under construction at IPP Greifswald, Germany, will be equipped with a 10 MW ECRH system working at 140 GHz in CW regime. The microwave power will be generated by 10 gyrotrons delivering 1 MW each and will be transmitted from the gyrotron hall to the W7-X stellarator ports via a fully optical system.
atus of the construction of the transmission lines and the design of the launchers is reported. Low-power tests of a prototype system at IPF Stuttgart are reviewed. Now, the first two gyrotrons are operating at IPP Greifswald, and high-power long-pulse tests have started. Measurements on transmission performance, behaviour of the water-cooled mirrors under thermal and microwave loads as well as alignment issues, characteristics of directional couplers, calorimetric loads, and other diagnostics are discussed.
Keywords :
Microwave reflectors , Remote-steering , Electron cyclotron heating , Multi-beam transmission
