Improvement of Radio Frequency Plasma Cathode and its Application to Ion Thruster

射频等离子体阴极的改进及其在离子推进器中的应用

• 批准号: 22760625
• 负责人: AOYAGI Junichiro
• 金额: $ 2.66万
• 依托单位: Tokyo Metropolitan University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22760625/
• 关键词: 高周波放電プラズマ; 電子源; 中和器; 点火特性; 電子放出特性; イオン推進機

In order to improve performances of radio frequency plasma cathode, ignition capability and electron emission characteristics were investigated, parametrically. Moreover, plasma diagnostic in a cathode chamber was carried out. It was cleared that the pressure in the chamber and the electric field formed by an electrode for ion collection were dominant to the ignition. In addition, it was also revealed that there exists an optimum pressure for electron emission, where depends on saturation current of ion and/or electron. On the basis of the results, a new cathode was designed, constructed and demonstrated. As the result, electric power consumption was reduced by half for equivalent electron emission. This study will be valuable for practical application to the ion thruster or its neutralizer.

为了提高射频等离子体阴极的性能，对射频等离子体阴极的点火性能和电子发射特性进行了参数化研究。此外，在阴极室进行了等离子体诊断。结果表明，燃烧室内的压力和收集离子的电极所形成的电场对点火起主导作用。此外，还发现存在一个最佳的电子发射气压，该气压取决于离子和/或电子的饱和电流，在此基础上，设计、构造并演示了一种新的阴极。结果，对于等效电子发射，电力消耗减少了一半。该研究对离子推力器及其中和器的实际应用具有一定的参考价值。

项目成果

Effects of Orifice Dimension on Inductively Coupled Plasma Cathode Performance for Ion Thruster

孔口尺寸对离子推进器电感耦合等离子体阴极性能的影响

• 发表时间: 2011
• 作者: S.Abe;et al.;The KamLAND Collaboration;Hiroki Watanabe
• 通讯作者: Hiroki Watanabe

誘導結合プラズマを用いた電子源の点火および電子放出性能における形状依存性

使用电感耦合等离子体的电子源的点火和电子发射性能的形状依赖性

• 发表时间: 2010
• 作者: A.Gando;et al;渡邊裕樹;The KamLAND Collaboration;渡邊裕樹
• 通讯作者: 渡邊裕樹

Parametric Study on Shape Dependence of Inductively Coupled Plasma Cathode for Performance Improvement

电感耦合等离子体阴极形状依赖性的参数研究以提高性能

• 发表时间: 2011
• 作者: Takuya NAKABAYASHI;Hiroki WATANABE;Satoshi KASAGAMI;Junichiro AOYAGI and Haruki TAKEGAHARA
• 通讯作者: Junichiro AOYAGI and Haruki TAKEGAHARA

イオンエンジンにおける誘導結合プラズマを用いた電子源の中和器作動特性

离子发动机电感耦合等离子体电子源中和器工作特性

• 发表时间: 2010
• 期刊: プラズマ応用科学
• 作者: 早川晃弘;竹尾友宏;小林正一;永野幸秀;北川敏明;Hiroki Watanabe;渡邊裕樹
• 通讯作者: 渡邊裕樹

Study on Ignition and Electron Emission Characteristics of Inductively Coupled Plasma Cathode

电感耦合等离子体阴极点火和电子发射特性研究

• 发表时间: 2012
• 期刊: The 28 ISTS Special Issue of Transaction of JSASS, Aerospace Technology Japan
• 作者: 早川晃弘;竹尾友宏;小林正一;永野幸秀;北川敏明;Hiroki Watanabe
• 通讯作者: Hiroki Watanabe