@inproceedings{oai:jaxa.repo.nii.ac.jp:00006500,
 author = {杉本, 幸子 and 國中, 均 and 都木, 恭一郎 and 荒川, 義博 and Sugimoto, Sachiko and Kuninaka, Hitoshi and Toki, Kyoichiro and Arakawa, Yoshihiro},
 book = {宇宙航空研究開発機構特別資料: 第1回宇宙環境シンポジウム報告書, JAXA Special Publication: Proceedings of the First Spacecraft Environment Symposium},
 month = {Mar},
 note = {The observing method that uses ENA (Energetic Neutral Atoms), produced by ion beam injected from an ion thruster, is studied and researched in order to estimate the density of neutral particles in the upper atmosphere. The ion beam experiences charge exchange collision (CEX) with neighboring neutral particles to transform into ENAs. The ENA preserves the information about the particles concerned with those collisions. A new method of estimating the density and the composition of the neutral particles from measuring the ENAs are proposed and the usability by simple calculation and experiment are examined., 資料番号: AA0048468008, レポート番号: JAXA-SP-04-010},
 pages = {34--38},
 publisher = {宇宙航空研究開発機構, Japan Aerospace Exploration Agency (JAXA)},
 title = {人工イオンビームによる高層大気観測に関する研究},
 volume = {JAXA-SP-04-010},
 year = {2005}
}