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AA1730013008.pdf451.61 kB
titleInvestigation of Electrostatic Transportation of Lunar Dust Grains due to Ambient Plasma Conditions
Author(jpn)Orger, Necmi Cihan; Cordova-Alarcon, J. Rodrigo; 豊田, 和弘; 趙, 孟佑
Author(eng)Orger, Necmi Cihan; Cordova-Alarcon, J. Rodrigo; Toyoda, Kazuhiro; Cho, Mengu
Author Affiliation(jpn)九州工業大学; 九州工業大学; 九州工業大学; 九州工業大学
Author Affiliation(eng)Kyushu Institute of Technology; Kyushu Institute of Technology; Kyushu Institute of Technology; Kyushu Institute of Technology
Issue Date2018-01-15
PublisherJapan Aerospace Exploration Agency (JAXA)
Publication titleJAXA Special Publication: Proceedings of the 14th Spacecraft Environment Symposium
宇宙航空研究開発機構特別資料: 第14回「宇宙環境シンポジウム」講演論文集
Start page59
End page62
Publication date2018-01-15
AbstractRecent studies have shown that dust grains can be transported in the laboratory experiments due to charging within micro-cavities between the particles. Therefore, electrostatic forces acting on the dust grains can be described as the repulsive Coulomb force between charged grains and the force resulting from the surface electric field due to the plasma sheath above the surface. In this study, we investigate different ambient plasma conditions to understand how the lunar dust particles are mobilized under the variation of surface potential, dust potential, electric field and the plasma sheath above the lunar terminator. In addition, electrostatic forces are compared to the gravity force and the contact forces for the micron and submicron sized dust particles, and it has been seen that the repulsive force between the charged dust grains can be stronger than the other forces. Finally, the current level of the experimental work is presented, which is prior to investigation of the impact modification on the electrostatic lofting of the silica dust grains in the vacuum chamber.
DescriptionPhysical characteristics: Original contains color illustrations
会議情報: 第14回宇宙環境シンポジウム (2017年11月6日-8日. 神戸大学先端融合研究環統合研究拠点コンベンションホール), 神戸市, 兵庫県
形態: カラー図版あり
KeywordsLunar dust; lunar surface charging; dust lofting; solar wind; ambient plasma
Document TypeConference Paper
JAXA Category特別資料
NASA Subject CategoryLunar and Planetary Science and Exploration
Report NoJAXA-SP-17-006

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