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Alignment Method of ECH Transmission Lines Based on the Moment and Phase Retrieval Method Using IR Images

Takashi SHIMOZUMA, Hiroshi IDEI, Michael SHAPIRO, Richard TEMKIN, Satoshi ITO, Takashi NOTAKE, Shin KUBO, Yasuo YOSHIMURA, Sakuji KOBAYASHI, Yoshinori MIZUNO, Yasuyuki TAKITA, Kunizo OHKUBO
2005 Journal of Plasma and Fusion Research  

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New alignment methods of millimeter-wave transmission lines for Electron Cyclotron resonance Heating are proposed and evaluated on a high power level. These methods are based on the measured data of infrared images on the target, which is irradiated by the high power millimeter-waves at several positions. The first and second moments and retrieved phase obtained from these data are used to determine the propagation direction of the millimeter-wave beam along the waveguide axis. It is
more » ... d that these methods have sufficient resolution to discriminate 0.1 deg., which is required to restrict the transmission loss below 1% over the 100 GHz range.
doi:10.1585/jspf.81.191 fatcat:4ufndv5665bfljkjwrvgmczgkm
Citation

Takashi SHIMOZUMA, Hiroshi IDEI, Michael SHAPIRO, Richard TEMKIN, Satoshi ITO, Takashi NOTAKE, Shin KUBO, Yasuo YOSHIMURA, Sakuji KOBAYASHI, Yoshinori MIZUNO, Yasuyuki TAKITA, Kunizo OHKUBO. "Alignment Method of ECH Transmission Lines Based on the Moment and Phase Retrieval Method Using IR Images." Journal of Plasma and Fusion Research 81.3 (2005) 191-196