Field Emission Cathodes for an Electrodynamic Tether Experiment on the H-II Transfer Vehicle
Field Emission Cathodes for an Electrodynamic Tether Experiment on the H-II Transfer Vehicle
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DOI：
10.2322/tastj.16.63
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
Y. Ohkawa;T. Okumura;Y. Horikawa;Y. Miura;Satomi Kawamoto;Koichi Inoue
中科院分区：
文献类型：
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作者：
Y. Ohkawa;T. Okumura;Y. Horikawa;Y. Miura;Satomi Kawamoto;Koichi Inoue
研制了一种基于碳纳米管的场发射阴极(FEC)，用于H-II转运车6号(HTV-6)的电动系绳实验。这项任务被称为Kounotori综合系绳实验(Kite)。FEC的开发始于2013年初，并于2016年春季完成。Kite于2017年1月开始运行，FEC运行良好，尽管系绳部署失败，但仍获得了各种类型的在轨数据。在整个实验期间，所有八个阴极单元都运行正常，没有出现任何严重故障。总运行时间达到50小时，最大发射电流约为5.8 mA，超过了地面实验的预期。通过没有系绳的周围空间等离子体的电流回路很可能是由于HTV太阳能电池的阳极部分收集电子而形成的。
A field emission cathode (FEC) using a carbon nanotube was developed for an electrodynamic tether experiment on H-II transfer vehicle 6 (HTV-6). The mission is called the Kounotori Integrated Tether Experiment (KITE). Development of the FEC began at the beginning of 2013 and was completed in the spring of 2016. KITE began in January 2017 and the FEC worked well, with various types of on-orbit data being obtained despite unsuccessful tether deployment. All eight cathode units operated without any critical trouble throughout the experiment period. The total operation time reached 50 hours and the maximum emission current was approximately 5.8 mA, and thus exceeded expectations based on ground experiments. The electrical current loop via an ambient space plasma without the tether was probably formed due to the collection of electrons on the anodic parts of the HTV’s solar cells.