Design of the Remote-Steering ITER ECRH Upper-Port Launcher

Author

Verhoeven, A.G.A. ; Bongers, W.A. ; Danilov, L. ; Elzendoorn, B.S.Q. ; Fernández, Á ; Graswinckel, M.F. ; Henderson, M. ; Heidinger, R. ; Jamar, J. ; Kasparek, W. ; Kruijt, O.G. ; Lamers, B. ; Plaum, B. ; Ronden, D.M.S. ; Saibene, G. ; Schüller, F.C. ; We

Author_Institution

FOM-Inst. for Plasma Phys. Rijnhuizen, Nieuwegein

fYear

2006

fDate

18-22 Sept. 2006

Firstpage

534

Lastpage

534

Abstract

The design of the mm-wave system for the ITER upper ports is being carried out with the aim to inject Electron Cyclotron Waves (ECW) in the plasma in order to stabilize neoclassical tearing modes (NTM). Four upper ports are equipped with six mm-wave lines, each capable of transmitting up to 2 MW at 170 GHz. The required beam-steering capabilities in our approach are achieved by Remote Steering (RS). New design efforts are presented that improve the current-drive capability of the RS set-up substantially by doubling the square waveguide length to around 9 m.

Keywords

beam steering; cyclotrons; electromagnetic launchers; millimetre wave devices; beam-steering capabilities; current-drive capability; electron cyclotron waves; frequency 170 GHz; millimeter-wave system; neoclassical tearing modes; remote-steering ITER ECRH upper-port launcher; Cyclotrons; Electrons; Europe; Heating; Mirrors; Particle beams; Physics; Plasma waves; Transmission line antennas; Waveguide components;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared Millimeter Waves and 14th International Conference on Teraherz Electronics, 2006. IRMMW-THz 2006. Joint 31st International Conference on

Conference_Location

Shanghai

Print_ISBN

1-4244-0400-2

Electronic_ISBN

1-4244-0400-2

Type

conf

DOI

10.1109/ICIMW.2006.368742

Filename

4222476