JAXA Repository / AIREX 未来へ続く、宙(そら)への英知
48515000.pdf1.29 MB
titleOne-dimensional model of self-organization in dusty plasma
Other Titleダストプラズマにおける自己組織化の1次元モデル
Author(jpn)足立 聡; 高柳 昌弘; 依田 真一
Author(eng)Adachi, Satoshi; Takayanagi, Masahiro; Yoda, Shinichi
Author Affiliation(jpn)宇宙航空研究開発機構 宇宙科学研究本部; 宇宙航空研究開発機構 宇宙科学研究本部; 宇宙航空研究開発機構 宇宙科学研究本部
Author Affiliation(eng)Japan Aerospace Exploration Agency Institute of Space and Astronautical Science; Japan Aerospace Exploration Agency Institute of Space and Astronautical Science; Japan Aerospace Exploration Agency Institute of Space and Astronautical Science
Issue Date2005-02-18
PublisherJapan Aerospace Exploration Agency (JAXA)
宇宙航空研究開発機構
Publication date2005-02-18
Languageeng
AbstractDust particles in plasma are self-organized due to strong Coulomb coupling. In order to explain the self-organization mechanism of dust particles in plasma, one-dimensional theoretical model is introduced. This model predicts variation of the Gibbs free energy against the distance between the dust particles. From the calculation results of the free energy variation, it is found that the attractive-repulsive force exists in the case of small particles. As the particle size increases, the force changes from the attractive-repulsive force to the repulsive one. In the attractive-repulsive region, particle distance can be estimated, though the distance estimation is difficult in the repulsive region. Hence, the distance dependency on the particle radius is investigated in the attractive-repulsive region. From the dependency, it is found that the distance is proportional to the square root of the radius. In addition, it is found that the distance is proportional to the fourth power root of the coupling parameter.
DescriptionJAXA Research and Development Report
宇宙航空研究開発機構研究開発報告
Keywordsone-dimensional model; self organization; Coulomb coupling; strongly coupled plasma; potential energy; entropy; plasma crystal; Gibbs free energy; dusty plasma; 1次元モデル; 自己組織化; クーロンカップリング; 強結合プラズマ; 位置エネルギー; エントロピー; プラズマ結晶; Gibbs自由エネルギー; ダストプラズマ
Document TypeTechnical Report
JAXA Category研究開発報告
ISSN1349-1113
SHI-NOAA0048515000
Report NoJAXA-RR-04-053E
URIhttps://repository.exst.jaxa.jp/dspace/handle/a-is/40651


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