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ITER ECH水平ランチャーについてのミリ波設計検証用モックアップ試験結果

Mock-up test results of ITER ECH Equatorial launcher's mm-wave design

設楽 弘之; 高橋 幸司; 小松崎 学*; 磯崎 正美; 小林 則幸*; 阿部 輝雄*; 阿部 岩司; 小田 靖久; 池田 亮介; 小林 貴之; 森山 伸一; 坂本 慶司

Shidara, Hiroyuki; Takahashi, Koji; Komatsuzaki, Manabu*; Isozaki, Masami; Kobayashi, Noriyuki*; Abe, Teruo*; Abe, Ganji; Oda, Yasuhisa; Ikeda, Ryosuke; Kobayashi, Takayuki; Moriyama, Shinichi; Sakamoto, Keishi

調達予定のITER水平ポートECランチャーにおいて、ミリ波伝送設計手法の評価のためランチャー内ミリ波伝送部の上段列モックアップを製作、低パワー試験を行った。実機では8本のミリ波ビーム(本試験では四隅の4本のビームを模擬)を重ねあわせたうえで、出射角可変化ミラーにより目的とする方向を設定しプラズマに入射する。本試験では各ビームのミリ波ビームのパワー分布をランチャー内、出口後などで計測、設計値との比較を行った結果、設計手法の妥当性の確認ができた。

In order to validate the millimeter wave design procedure, the EL mock-up has been constructed and the low power test has been carried out by using mW-level low power RF oscillators. The test has been carried out with critical four edged beams instead of all eight beams in the upper waveguide unit. The measured data has been compared with design at several important locations in the launcher and after the launcher exit with steering mirror angle changed. The comparison of the measured beams propagation and the design shows good agreement for the beam sizes and the beam orientation performance. The quantitative evaluations has been carried out and the design procedure's reasonability has been confirmed.

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