Development of electron cyclotron emission imaging system on Large Helical Device

Kuwahara, D.; Tsuji-Iio, S.; Nagayama, Y.; Yoshinaga, T.; Tsuchiya, H.; Sugito, S.; Yamaguchi, S.; Kogi, Y.; Akaki, K.; Mase, A.
October 2010
Review of Scientific Instruments;Oct2010, Vol. 81 Issue 10, p10D919
Academic Journal
A combined system of microwave imaging reflectometry and electron cyclotron emission (ECE) imaging has been developed for the Large Helical Device. This system includes a wide-band two-dimensional horn-antenna mixer array (HMA). The HMA consists of horn antennas, waveguides, mixers, and intermediate frequency circuits. The frequency response of the HMA is between 50 and 110 GHz. The ECE signal is selected using a 95 GHz local oscillator and a 93 GHz high-pass filter.


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