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Takahashi, Koji; Moeller, C. P.*; Sakamoto, Keishi; Hayashi, Kenichi*; Imai, Tsuyoshi
Fusion Engineering and Design, 65(4), p.589 - 598, 2003/07
Times Cited Count：22 Percentile：78.30(Nuclear Science & Technology)High power radiation experiments of a remote steering launcher for an EC H&CD system were carried out to study the characteristic of the rf beam steering and transmission. The remote steering launcher consists of a 4.632m corrugated square waveguide (45.7 
45.7mm
) and a movable flat mirror which is placed at the input of the waveguide. Measurements were made in the range 0-10
at a frequency of 170GHz. The measured radiation pattern is clearly a Gaussian-like distribution, which is in agreement with the low power measurements. A steering capability of up to 10 was experimentally confirmed. Transmission and radiation of 0.5 MW-3.0 sec and 0.2 MW-10.0 sec pulses were successfully demonstrated over a steering angle range of 0-10. No arcing was observed during the experiments and no damage to the waveguide was found after the experiments were finished. We confirmed that remote steering was a possibly alternative scheme of rf beam steering for EC H&CD.
Takahashi, Koji; Moeller, C. P.*; Kasugai, Atsushi; Minami, Ryutaro; Sakamoto, Keishi; Imai, Tsuyoshi
Proceedings of 28th International Conference on Infrared and Millimeter Waves, p.385 - 386, 2003/00
no abstracts in English
X.D.Zheng*; ; Maebara, Sunao; ; ; ; Yakayama, Ken*; ; ; Ogawa, Masao*; et al.
Nuclear Instruments and Methods in Physics Research A, 407(1-3), p.198 - 202, 1998/00
Times Cited Count：1 Percentile：21.87(Instruments & Instrumentation)no abstracts in English
