Remote-steering launchers for the ECRH system on the stellarator W7-X

Author

Lechte, C. ; Plaum, B. ; Kasparek, Walter ; Zeitler, Axel ; Erckmann, Volker ; Laqua, H. ; Weissgerber, M. ; Bechtold, A. ; Busch, M. ; Szcepaniak, B.

Author_Institution

Inst. fur Grenzflachenverfahrenstechnik und Plasmatechnologie, Univ. Stuttgart, Stuttgart, Germany

fYear

2013

fDate

1-6 Sept. 2013

Firstpage

1

Lastpage

2

Abstract

For electron cyclotron resonance heating of the stellarator W7-X at IPP Greifswald, a 140 GHz/10 MW cw millimeter wave system is in construction. Two out of 12 launchers will employ a remote-steering design. This paper describes design issues like input coupling structures, manufacturing of corrugated waveguides, optimization of the steering range, integration of vacuum windows, mitrebends and vacuum valves into the launchers, as well as tests of prototype parts.

Keywords

plasma filled waveguides; plasma radiofrequency heating; plasma toroidal confinement; stellarators; ECRH system; IPP Greifswald; corrugated waveguide manufacturing; cw millimeter wave system; electron cyclotron resonance heatin; frequency 140 GHz; input coupling structures; mitrebend valve integration; optimization; power 10 MW; remote-steering launchers; stellarator W7-X; vacuum valve integration; vacuum window integration; Imaging; Optical waveguides; Optimization; Particle beams; Plasmas; Structural beams; Valves;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2013 38th International Conference on

Conference_Location

Mainz

Type

conf

DOI

10.1109/IRMMW-THz.2013.6665754

Filename

6665754