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Notch Filter in 70 GHz Range for Microwave Plasma Diagnostics
http://hdl.handle.net/10655/10164
http://hdl.handle.net/10655/10164c6349c4b-24cb-43c8-9d52-0e1dc10aaad3
名前 / ファイル | ライセンス | アクション |
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pfr2013_08-2402027.pdf (662.1 kB)
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Item type | 学術雑誌論文 / Journal Article_02(1) | |||||
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公開日 | 2013-10-18 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Notch Filter in 70 GHz Range for Microwave Plasma Diagnostics | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | millimeter wave filters | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | electron cyclotron emission | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | reflectometer | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | collective Thomson scattering | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | millimeter plasma diagnostics | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
NISHIURA, Masaki
× NISHIURA, Masaki× KUBO, Shinichiro× TANAKA, Kenji× KOBAYASHI, Sakuji× OKADA, Kohta× NISHIMURA, Teruki× OKADA, Koji× KASAHARA, Hiroshi× OGASAWARA, Shinya× SHIMOZUMA, Takashi× MUTOH, Takashi× KAWAHATA, Kazuo× SAITO, Teruo× TATEMATSU, Yoshinori× LHD, experiment group |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | A notch filter for the rejection of stray light from gigahertz range heating sources was developed to protect a vulnerable microwave plasma diagnostic system. As one of the applications, we consider the installation of the notch filter into the receiver of a collective Thomson scattering diagnostic in the Large Helical Device. Experimental observations indicate that two types of notch filters are required for main and spurious mode rejection; they have very narrow, steep shapes to avoid disturbing the diagnostic signal. On the basis of numerically simulated results, notch filters were fabricated, and their performance was evaluated. An attenuation level of 35 dB at 74.746 GHz with a 3 dB bandwidth of 0.49 GHz is achieved by two pairs of resonator cavities. This attenuation is acceptable in our study. | |||||
書誌情報 |
en : Plasma and Fusion Research 巻 Vol.8, p. 2402027-1- 2402027-4, 発行日 2013-06-01 |
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出版者 | ||||||
出版者 | プラズマ・核融合学会 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1585/pfr.8.2402027 | |||||
権利 | ||||||
権利情報 | ? 2013 The Japan Society of Plasma Science and Nuclear Fusion Research |