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Application of millimeter-wave phase-imaging interferometry and study of radical transport in the GAMMA 10 tandem mirror
http://hdl.handle.net/2241/6366
http://hdl.handle.net/2241/636659f67860-82ce-41cb-a38d-abf64994d368
名前 / ファイル | ライセンス | アクション |
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A0884.pdf (211.8 kB)
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Item type | Thesis or Dissertation(1) | |||||
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公開日 | 2007-07-25 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Application of millimeter-wave phase-imaging interferometry and study of radical transport in the GAMMA 10 tandem mirror | |||||
言語 | ||||||
言語 | jpn | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_db06 | |||||
タイプ | doctoral thesis | |||||
アクセス権 | ||||||
アクセス権 | open access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
著者 |
服部,邦彦
× 服部,邦彦 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | A millimeter-wave phase-imaging interferometer has been developed for the study of density profiles of the plasma. The interferometer consists of a 70 GHz klystron oscillator and a quasi-optical transmission system. The probe beam is expanded so as to fill orthogonal views of the plasma cross section. The optical system has been designed using a Gaussian beam propagation theory and a geometric ray-trancing code. The views are imaged onto a 10- or 11-channnel Schottky barrier diode array, which are newly developed in the millimeter-wave region for the present experiment. The detector array consists of beam lead GaAs Schottky barrier diodes bonded to bow-tie antennas or Yagi-Uda antennas. This system has been used to obtain chord-averaged electron density profiles at the central-cell and plug-cell plasmas of the GAMMA 10 tandem mirror. The detector array has also been successfully applied to the Fraunhofer diffraction measurement. The measurement permits a detailed study of k-ω spectra of long-wavelength waves with a few plasma shots. The observed dispresion relation are in good agreement with those of a drift wave and a flute mode including a Doppler shift due to the EXB rotation velocity. The density fluctuation level is observed to depend sensitively on the radical profile of a plasma potential. The radial confinement time estimated from a particle balance equation decreases with increase in the fluctuation level. This agrees with that evaluation from quasilinear theory of fluctuation-induced transport. | |||||
言語 | en | |||||
書誌情報 |
発行日 1991 |
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関係URI | ||||||
関連タイプ | hasFormat | |||||
識別子タイプ | URI | |||||
関連識別子 | https://www.tulips.tsukuba.ac.jp/opac/volume/607180 | |||||
言語 | ja | |||||
関連名称 | 全文はOPACにあり | |||||
取得学位 | ||||||
学位名 | 博士(工学) | |||||
取得学位 | ||||||
学位名 | Doctor of Philosophy in Engineering | |||||
学位授与大学 | ||||||
学位授与機関識別子Scheme | kakenhi | |||||
学位授与機関識別子 | 12102 | |||||
言語 | ja | |||||
学位授与機関名 | 筑波大学 | |||||
言語 | en | |||||
学位授与機関名 | University of Tsukuba | |||||
学位授与年度 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 1990 | |||||
学位授与年月日 | ||||||
学位授与年月日 | 1991-03-25 | |||||
報告番号 | ||||||
学位授与番号 | 甲第884号 |