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Title
Japanese:強度比法を用いた大型ヘリコンプラズマ源におけるアルゴン分光測定 
English:Argon Spectral Measurement using Intensity Ratio Method in Large Helicon Source 
Author
Japanese: 堀田大貴, 赤塚洋, Amy M. Keesee, 桑原大介, 篠原俊二郎.  
English: Hirotaka Horita, Hiroshi Akatsuka, Amy M. Keesee, Daisuke Kuwahara, Shunjiro Shinohara.  
Language English 
Journal/Book name
Japanese:プラズマカンファレンス2017オンライン予稿集 
English:Proceedings of Plasma Conference 2017 
Volume, Number, Page        
Published date Nov. 14, 2017 
Publisher
Japanese:一般社団法人 プラズマ・核融合学会 
English:The Japan Society of Plasma Science and Nuclear Fusion Research 
Conference name
Japanese:プラズマカンファレンス2017 
English:Plasma Conference 2017 
Conference site
Japanese:姫路 
English:Himeji 
Official URL https://confit.atlas.jp/guide/event/plasma2017/subject/21P-72/advanced
 
Abstract To explore a deep space for a long-time period, a spacecraft must have a long-lifetime and high efficiency thruster. We have proposed an electrodeless plasma propulsion system using a high-density (~10^{13} cm^{-3}) helicon plasma. To characterize this thruster, we need to measure plasma parameters, e.g., an electron density and its temperature. To determine these parameters without any disturbance to in a plasma, we have been developing a spectroscopic measurement method using a Collisional Radiative (CR) model. This method needs many parameters, e.g., cross-section, diffusion, and various assumptions. In this study, improvement of some parameters and calculation results will be presented.

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