JAXA Repository / AIREX 未来へ続く、宙(そら)への英知
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titleリチウムガス噴射装置(LES)の研究開発: ISAS-NASA国際共同ミッションDaytime Dynamo Experiment用機器製作
Other TitleLithium ejection system for the international collaborative space science research activity
Author(jpn)羽生, 宏人; 荒川, 聡; 阿部, 琢美; 吉田, 裕二; 山本, 真行; 渡部, 重十; 山本, 衛
Author(eng)Habu, Hiroto; Arakawa, Satoshi; Abe, Takumi; Yoshida, Yuji; Yamamoto, Masayuki; Watanabe, Shigeto; Yamamoto, Mamoru
Author Affiliation(jpn)宇宙航空研究開発機構宇宙科学研究所; 宇宙航空研究開発機構宇宙科学研究所; 宇宙航空研究開発機構宇宙科学研究所; 宇宙航空研究開発機構宇宙科学研究所; 高知工科大学工学部; 北海道大学大学院理学院; 京都大学生存圏研究所
Author Affiliation(eng)Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS); Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS); Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS); Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS); School of Engineering, Kochi University of Technology; Graduate School of Science, Hokkaido University; Research Institute for Sustainable Humanosphere, Kyoto University
Issue Date2011-02-28
PublisherJapan Aerospace Exploration Agency (JAXA)
Publication titleJAXA reseach and development report
Publication date2011-02-28
AbstractLithium ejection system (LES) is one of the chemical payloads for the ionosphere observation. Lithium is selected as the chemical tracer to detect optically the neutral winds, and the thermite loaded in LES played a role of the heat sauce to vaporize the solid phase lithium. This device has been launched by the Japanese sounding rocket, S-520, from Uchinoura space center in 2007. Gaseous lithium was successfully injected into the space, and the red colored cloud was able to be observed from the ground. The concept was explained in early papers, and their design was shown that the thermite including lithium or sodium pellets was directly charged in the canister. Thermite is ignited by the pyrotechnics and generates the high temperature chemical products which give the vaporization energy of the released materials. The payload design was considered that the instruments on board which acts by the pyrotechnics need to be equipped with the safe and arm device (SAD) from the safety standard. The final design obtained the safety and the reliability of this device for storing and handling. Lithium in the canister is able to be removed with ease, and the tracer materials will be able to replace lithium to other one if necessary. 13 LES canisters were fabricated for ISAS-NASA international collaborative space science mission. This paper reports the results of the design study and the specification of LES.
DescriptionOriginal contains color illustrations
形態: カラー図版あり
KeywordsChemical payload; Lithium release; Lithium ejection system; Ionosphere
Document TypeTechnical Report
JAXA Category研究開発報告
Report NoJAXA-RR-10-011

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