著者
伊勢 俊之 月崎 竜童 都甲 浩芳 小泉 宏之 國中 均
出版者
一般社団法人 日本航空宇宙学会
雑誌
日本航空宇宙学会論文集 (ISSN:13446460)
巻号頁・発行日
vol.62, no.6, pp.212-218, 2014 (Released:2015-08-20)
参考文献数
12

The microwave ion thruster μ10's ion beam current saturated at a large mass flow rate when propellant gas was injected from a waveguide inlet and it was improved by additional propellant inlets to a discharge chamber. In order to understand the mechanism of these phenomena, it is important to measure distributions of the microwave electric field inside the discharge chamber, which is directly related to plasma production. In this study, we applied an electro-optic (EO) probe to measuring the microwave electric field. The probe contains no metal and can be accessed in the discharge chamber with less disruption to the microwave distribution. We measured electric-field profiles along the centerline and in the ECR area of μ10 with the EO probe. Consequently, this paper revealed that when the propellant was injected from the waveguide inlet, microwave was reflected in the waveguide at large mass flow rate, which disturbed a propagation of microwave to the ECR area. It also revealed that when the propellant was injected from the discharge chamber inlet, the mass flow rate where the microwave reflection occurred shifted to larger rate, which resulted in the increase of the beam current.
著者
渡邊 裕樹 和田 明哲 月崎 竜童 池田 知行 WATANABE Hiroki WADA Asato TSUKIZAKI Ryudo IKEDA Tomoyuki
出版者
宇宙航空研究開発機構(JAXA)
雑誌
宇宙航空研究開発機構研究開発報告: 将来深宇宙探査に向けた革新的超小型推進系研究グループ 2020年度研究成果報告書 = JAXA Research and Development Report: Technical Report of the Research Activity for Innovative Micro Propulsion Systems for Future Deep Space Explorations (2020) (ISSN:24332216)
巻号頁・発行日
vol.JAXA-RR-20-008, pp.6-12, 2021-02-12

Research and development of low-power Hall thruster system is important for the realization of space explorations using micro spacecrafts. In this paper, technical problems for the development of low-power Hall thruster system was discussed based on the previous experimental results of 100-W class Hall thruster.