Title :
Optimization and Measurements on a Remote Steering Upper Port Launcher mockup for ITER
Author :
Bongers, W.A. ; Graswinckel, M.F. ; Curto, A.F. ; Danilov, I. ; Elzendoorn, B.S.Q. ; Heidinger, R. ; Kruijt, O. ; Lamers, B. ; Piosczyk, B. ; Ronden, D.M.S. ; Schmid, M. ; Verhoeven, A.G.A.
Author_Institution :
Association EURATOM-FOM Trilateral Euregio Cluster, Nieuwegein
Abstract :
The association FOM-Rijnhuizen, together with EFDA ECHULA group, develops a plug-in 170 GHz ECW launcher system, based on the remote steering (RS) principle. At this principle the steerable mirror is placed before the input of a Square Corrugated Waveguide (SCW), with no plasma facing moving parts. A high-power testing program was performed on a mockup, in cooperation with FZK, to validate the relative power-loss, steering range, beam quality and polarization. Recently the design has evolved in using a longer SCW, of about 8 to 10 meter, to improve the physics performance to guarantee NTM stabilization in the important ITER scenarios.
Keywords :
fusion reactors; gyrotrons; waveguides; ECW launcher system; EFDA ECHULA group; FOM-Rijnhuizen; FZK; ITER; frequency 170 GHz; remote steering upper port launcher; square corrugated waveguide; steerable mirror; Loss measurement; Mirrors; Performance evaluation; Physics; Plasma measurements; Polarization; Power measurement; Shape control; System testing; Waveguide components;
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
DOI :
10.1109/ICIMW.2006.368255
