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

fYear

2008

fDate

15-19 Sept. 2008

Firstpage

1

Lastpage

1

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICIMW.2008.4665825

Filename

4665825