Effects of Segmented Chamber Walls in a Microwave Ion Thruster on Thrust Performance
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- TSUKIZAKI Ryudo
- 連絡先著者(Corresponding author):ryudo@ep.isas.jaxa.jp 国立研究開発法人宇宙航空研究開発機構
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- YAMAMOTO Yuta
- 静岡大学大学院総合科学技術研究科
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- HOSODA Satoshi
- 国立研究開発法人宇宙航空研究開発機構
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- NISHIYAMA Kazutaka
- 国立研究開発法人宇宙航空研究開発機構
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- KUNINAKA Hitoshi
- 国立研究開発法人宇宙航空研究開発機構
Bibliographic Information
- Other Title
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- マイクロ波放電式イオンスラスタにおける 放電室分割による推進性能への影響
- マイクロハ ホウデンシキ イオンスラスタ ニ オケル ホウデンシツブンカツ ニ ヨル スイシン セイノウ エ ノ エイキョウ
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Description
In order to improve the thrust force of the μ 10 microwave discharge ion thruster, its ion source which is biased at a screen voltage is separated into three parts; 1.waveguide, magnet, and a grid holder, 2.magnet spacers, and 3.a screen grid by ceramic rings. Connection of a high voltage power supply is selectable among each component independently, and maximum beam currents are measured in all six cases in addition to the nominal setup. Except for one case, the maximum thrust force is increased from the HAYABUSA's 8mN and HAYABUSA2's 10mN. The highest thrust force 11.2mN is recorded at Isp 3150sec when the magnet spacers are not connected to the power supply. At this time, the potential of the isolated magnet spacers is increased from 1500V to 1525V. The increase of the potential of the spacers regulates collisions of ions, resulting in increase of the ion currents. This study firstly demonstrates the effect of the segmentation of the discharge chamber of microwave ion thrusters and achieves the improvement of 4% of the total efficiency and of 40% of the thrust force since the HAYABUSA's flight model.
Journal
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- JOURNAL OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES
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JOURNAL OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES 65 (1), 17-20, 2017
THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES
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Details 詳細情報について
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- CRID
- 1390001204468392320
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- NII Article ID
- 130005316533
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- NII Book ID
- AA11307372
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- ISSN
- 24323691
- 13446460
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- NDL BIB ID
- 027926019
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL Search
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed