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Development of a Plasma Diagnostics System Using an Impulse Waveform Voltage
http://hdl.handle.net/10655/6350
http://hdl.handle.net/10655/63507bc1a007-11d5-4f78-8409-cca7706b86cb
名前 / ファイル | ライセンス | アクション |
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pfr2008_03-018.pdf (2.5 MB)
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Item type | 学術雑誌論文 / Journal Article_02(1) | |||||
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公開日 | 2011-03-24 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Development of a Plasma Diagnostics System Using an Impulse Waveform Voltage | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | impulse | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | microwave radar | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | electron density profile | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | microwave reflectometer | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | LHD | |||||
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 |
TOKUZAWA, Tokihiko
× TOKUZAWA, Tokihiko× KAWAHATA, Kazuo× ITO, Yasuhiko× TANAKA, Kenji× YAMADA, Ichihiro× LHD, Experimental Group |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | A new application using an electric impulse signal has been developed for electron density profile measurements in the Large Helical Device (LHD). Using an impulse waveform voltage, which has broadband frequency components, we constructed an ultrashort pulsed radar reflectometer with 28 channels in X-, Ka-, and U-band frequency components. The effect of the bandwidth of an inline band-pass filter was investigated, and was optimized. For a multiple-channel and multiple-frequency band system, a new switching technique and multiplexer were developed. Using the Abel inversion method, the reconstructed electron density profile was obtained from the delay time as a function of the probing frequency. Good agreement with other diagnostics was obtained. | |||||
書誌情報 |
en : Plasma and Fusion Research 巻 Vol.3, p. 018-1 - 018-8, 発行日 2008-01-01 |
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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.3.018 | |||||
権利 | ||||||
権利情報 | ? 2008 The Japan Society of Plasma Science and Nuclear Fusion Research |