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Other TitleNumerical Simulation of Surface Potential History of Dielectric Film under Electric Irradiation
Author(jpn)森岡, 祐貴; 渡邉, 力夫
Author(eng)Morioka, Yuki; Watanabe, Rikio
Author Affiliation(jpn)東京都市大学; 東京都市大学
Author Affiliation(eng)Tokyo City University; Tokyo City University
Issue Date2012-02-20
Japan Aerospace Exploration Agency (JAXA)
Publication title宇宙航空研究開発機構特別資料: 第8回宇宙環境シンポジウム講演論文集
JAXA special publication: Proceedings of the 8th Spacecraft Environment Symposium
Start page169
End page173
Publication date2012-02-20
AbstractSpacecraft are subject to build up charges inside dielectric films covering spacecraft for heat protection and electrical insulation. This will cause electrostatic discharge and may result in failures and anomalies. To avoid this problem, investigation of surface potential of dielectric films under electron irradiation is necessary. In the present study, time histories of surface potential on polyimide films under electron irradiation are investigated by numerical simulation. The charge density inside films is obtained by a Monte-Carlo particle tracking method. Results are verified with experimental data and discussion of the collision models is made. We can use this simulation for analyzing the cause of electric anomalies of spacecraft.
DescriptionPhysical characteristics: Original contains color illustrations
Meeting Information: 8th Spacecraft Enivironment Symposium (October 18-19, 2011, Tokyo Big Sight), Tokyo Japan
形態: カラー図版あり
会議情報: 第8回宇宙環境シンポジウム (2011年10月18-19日. 東京国際展示場), 東京
Keywordspolyimide Film; Internal Charge; Monte-Carlo Simulation; GPGPU; dielectric materials
Document TypeConference Paper
JAXA Category特別資料
Report NoJAXA-SP-11-012

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