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Magnetic field configuration effects on a miniature DC ion thruster with an inverted potential structure
http://hdl.handle.net/10131/0002000581
http://hdl.handle.net/10131/000200058180b1cf20-91b2-4054-b906-eeef99b6f378
名前 / ファイル | ライセンス | アクション |
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Download is available from 2026/3/20.
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Item type | 学術雑誌論文 / Journal Article(1) | |||||||||
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公開日 | 2024-03-28 | |||||||||
タイトル | ||||||||||
言語 | en | |||||||||
タイトル | Magnetic field configuration effects on a miniature DC ion thruster with an inverted potential structure | |||||||||
言語 | ||||||||||
言語 | eng | |||||||||
キーワード | ||||||||||
主題 | Microspacecraft; DC ion thruster; Potential-inverted discharge chamber; Magnetic field configuration; Probe diagnostics(en) | |||||||||
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 | |||||||||
アクセス権 | ||||||||||
アクセス権 | embargoed access | |||||||||
アクセス権URI | http://purl.org/coar/access_right/c_f1cf | |||||||||
著者 |
Yoshinori, Tanaka
× Yoshinori, Tanaka
× Yoshinori, Takao
ORCID
0000-0002-3468-8857
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抄録 | ||||||||||
内容記述タイプ | Abstract | |||||||||
内容記述 | To improve the mass utilization and total efficiency of miniature direct current (DC) ion thrusters, this article proposes a graphene–oxide–semiconductor (GOS) electron source as a cathode in the discharge chamber and neutralizer. To apply the GOS device to the discharge chamber, multiple electron sources were positioned downstream to provide sufficient electrons for plasma generation. Accordingly, the anode was placed upstream of the discharge chamber; thus, the potential structure was inverted from that of a conventional device. Based on this concept, two discharge chamber types were developed with different magnetic field configurations (1- and 2-Cusp types) using a filament cathode and their performance was experimentally evaluated. Probe diagnostics results showed that plasma was generated mainly in the center of the discharge chamber in 1-Cusp, whereas it was generated in the entire discharge chamber in 2-Cusp. Regarding ion beam extraction with 211-hole grids, 1-Cusp exhibited a higher screen current than 2-Cusp. However, using 391-hole grids with an expanded ion-extraction region, 2-Cusp outperformed 1-Cusp with 211-hole grids, attaining a minimum discharge loss of 273 W/A (excluding filament power) and a maximum mass utilization efficiency of 0.48. | |||||||||
言語 | en | |||||||||
書誌情報 |
en : Acta Astronautica 巻 219, p. 243-249, ページ数 7, 発行日 2024-03-20 |
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ISSN | ||||||||||
収録物識別子タイプ | PISSN | |||||||||
収録物識別子 | 0094-5765 | |||||||||
DOI | ||||||||||
関連タイプ | isVersionOf | |||||||||
識別子タイプ | DOI | |||||||||
関連識別子 | https://doi.org/10.1016/j.actaastro.2024.03.010 | |||||||||
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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 | Elsevier |