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Electron loss mechanisms in a miniature microwave discharge water neutralizer
http://hdl.handle.net/10131/00013279
http://hdl.handle.net/10131/000132796284257e-97bf-45d4-b898-e47c548d3868
名前 / ファイル | ライセンス | アクション |
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2020.Sato,Y.POP.27.063505.pdf (4.9 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2020-06-02 | |||||
タイトル | ||||||
タイトル | Electron loss mechanisms in a miniature microwave discharge water neutralizer | |||||
言語 | ||||||
言語 | eng | |||||
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 |
Yosuke, Sato
× Yosuke, Sato× Hiroyuki, Koizumi× Masakatsu, Nakano× Yoshinori, Takao |
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著者所属 | ||||||
Department of Mechanical Engineering, Materials Science, and Ocean Engineering, Yokohama National University, Yokohama 240-8501, Japan | ||||||
著者所属 | ||||||
Department of Advanced Energy, The University of Tokyo, Kashiwa, Chiba 277-8561, Japan | ||||||
著者所属 | ||||||
Department of Engineering, Tokyo Metropolitan College of Industrial Technology, 8-17-1, Minami-Senju, Arakawa-ku, Tokyo 113-0852, Japan | ||||||
著者所属 | ||||||
Division of Systems Research, Yokohama National University, Yokohama 240-8501, Japan | ||||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | This study analyzes the mechanism of electron loss at the discharge chamber wall of a microwave discharge neutralizer via three-dimensional particle-in-cell simulations with Monte Carlo collisions (PIC–MCCs). The neutralizer employs electron cyclotron resonance discharges with two ring-shaped permanent magnets and 4.2-GHz microwaves, where the plasma is confined by a magnetic mirror. The PIC–MCC simulation results show that the electron extraction efficiency of a water neutralizer can be increased by two times in an optimized magnetic field configuration, which is a higher increased rate than that of a xenon neutralizer. However, the efficiency of 20% is still low (e.g., less than half of the xenon one) because many electrons are lost to the magnet surface. The loss is determined to be due to approximately 5-times higher ratio of electrons inside the loss cone in the water neutralizer than that in the xenon neutralizer. The electron velocity distributions of each neutralizer clearly show that the water neutralizer has a larger fraction of electrons parallel to the magnetic field than the xenon neutralizer. This result is attributed to the large number of electron collisions in the water neutralizer owing to the high neutral gas pressure. | |||||
書誌情報 |
Physics of plasmas 巻 27, 号 6, p. 063505-1-063505-8, 発行日 2020-06 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1070664X | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA10987555 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.1063/5.0002336 | |||||
権利 | ||||||
権利情報 | ©2020 AIP Publishing. | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
出版者 | ||||||
出版者 | AIP Publishing |