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Development of a Real-Time Power/Polarization Monitor using FPGA for Electron Cyclotron Resonance Heating on LHD
http://hdl.handle.net/10655/00013436
http://hdl.handle.net/10655/0001343694611ce7-5313-4461-8be2-8750299755a9
名前 / ファイル | ライセンス | アクション |
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8613_PFR (594.8 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2022-08-04 | |||||
タイトル | ||||||
タイトル | Development of a Real-Time Power/Polarization Monitor using FPGA for Electron Cyclotron Resonance Heating on LHD | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | power/polarization monitor | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | millimeter-waves | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | electron cyclotron resonance heating | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | LHD | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | miter-bend | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | FPGA | |||||
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 |
MAKINO, Ryohei
× MAKINO, Ryohei× KUBO, Shin× KOBAYASHI, Kenya× KOBAYASHI, Sakuji× SHIMOZUMA, Takashi× YOSHIMURA, Yasuo× IGAMI, Hiroe× TAKAHASHI, Hiromi× OGASAWARA, Shinya× MUTOH, Takashi |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | For optimization of electron cyclotron resonance heating (ECRH), it is important to measure power and polarization states of injected millimeter-waves in real-time. Arbitrary polarization states of millimeter-waves are realized by two grating mirror polarizers set at miter-bends in the corrugated waveguide transmission system on the Large Helical Device (LHD). The polarization state of an injected millimeter-wave determines the mode excitation purity, and therefore the power absorption efficiency in plasmas. The real-time power/polarization monitor of the injected millimeter-wave is required for optimization and/or feedback control of ECRH. The real-time power/polarization monitor is under development to be installed on a miter-bend near the ECRH antenna on LHD. Amplitudes and phases of two orthogonal polarizations of injected millimeter-waves are measured to determine the power and polarization states of waves. In this paper, the design and performance test of the real-time power/polarization monitor are reported. Intensities and relative phase of two orthogonal polarizations are measured by a newly developed monitor with heterodyne interferometer and fast ADC (800 MHz) with FPGA. Hardware of the power/polarization monitor works as designed qualitatively. | |||||
書誌情報 |
Plasma and Fusion Research 巻 9, 号 Special Issue 2, p. 3405024, 発行日 2014-03-14 |
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書誌的事項 | ||||||
the 23rd International Toki Conference on Large-scale Simulation and Fusion Science | ||||||
出版者 | ||||||
出版者 | The Japan Society of Plasma Science and Nuclear Fusion Research | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1880-6821 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA12346675 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1585/pfr.9.3405024 | |||||
権利 | ||||||
権利情報 | (c) 2014 The Japan Society of Plasma Science and Nuclear Fusion Research | |||||
関連サイト | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1585/pfr.9.3405024 | |||||
関連名称 | publisher version | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
NAIS | ||||||
8613 |