Title :
Propagating mode analysis and field reconstruction in the corrugated waveguides of a high power electron cyclotron heating system
Author :
Shimozuma, T. ; Idei, H. ; Shapiro, M.A. ; Temkin, R.J. ; Kubo, S. ; Yoshimura, Y. ; Igami, H. ; Takahashi, H. ; Notake, T. ; Ito, S. ; Kobayashi, S. ; Mizuno, Y. ; Takita, Y. ; Mutoh, T.
Author_Institution :
Nat. Inst. for Fusion Sci., Toki
Abstract :
A new method is proposed to analyze mode contents of high power electromagnetic waves that are propagating through corrugated waveguides in the electron cyclotron resonance heating (ECH) system for nuclear fusion devices. The method was applied to a 168 GHz transmission line of the ECH system in Large Helical Device (LHD) to evaluate the waveguide misalignment. Mode contents of the propagating wave could be well obtained, and the wave field in the waveguide was reconstructed by using the information of each mode.
Keywords :
high-frequency transmission lines; plasma radiofrequency heating; waveguides; corrugated waveguides; field reconstruction; frequency 168 GHz; high power electromagnetic waves; high power electron cyclotron heating system; large helical device; propagating mode analysis; transmission line; waveguide misalignment; Cyclotrons; Electromagnetic analysis; Electromagnetic heating; Electromagnetic propagation; Electromagnetic scattering; Electromagnetic waveguides; Electrons; Fusion reactors; Power transmission lines; Resonance;
Conference_Titel :
Infrared, Millimeter and Terahertz Waves, 2008. IRMMW-THz 2008. 33rd International Conference on
Conference_Location :
Pasadena, CA
Print_ISBN :
978-1-4244-2119-0
Electronic_ISBN :
978-1-4244-2120-6
DOI :
10.1109/ICIMW.2008.4665825
