Plasma Flow Measurement Using Directional Langmuir Probe Under Weakly Ion-Magnetized Conditions : Fluids, Plasmas, and Electric Discharges
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概要
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It is both experimentally and theoretically demonstrated that ion flow velocity at an arbitrary angle with respect to the magnetic field can be measured with a directional Langmuir probe. Based on the symmetry argument, we show that the effect of magnetic field on directional probe current is exactly canceled in determining the ion flow velocity, and obtain the generalized relation between flow velocity and directional probe currents valid for any flowing direction. The absolute value of the flow velocity is determined by an in situ calibration method of the probe. The applicability limit of the present method to a strongly ion-magnetized plasma is experimentally examined.
- 社団法人日本物理学会の論文
- 2001-01-15
著者
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OKAMOTO ATSUSHI
Graduate School of Environmental Studies, Tohoku University
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Nagaoka Kenichi
Graduate School Of Science Nagoya University
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Tanaka M
National Inst. For Fusion Sci. Toki Jpn
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TANAKA Masayoshi
National Institute for Fusion Science
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Okamoto A
Hokkaido Univ. Sapporo Jpn
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Okamoto A
Graduate School Of Science Nagoya University
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YOSHIMURA Shinji
National Institute for Fusion Science
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Okamoto Atsushi
Graduate School Of Engineering Hokkaido University
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