JAXA Repository / AIREX 未来へ続く、宙(そら)への英知
65159018.pdf1.84 MB
Other TitleThe study on the surface-potential characteristic of the solar-cell cover glass irradiated by electron beam
Author(jpn)東山, 直紀; 渡邉, 力夫; 三宅, 弘晃; 高橋, 眞人; 奥村, 哲平
Author(eng)Higashiyama, Naoki; Watanabe, Rikio; Miyake, Hiroaki; Takahashi, Masato; Okumura, Teppei
Author Affiliation(jpn)東京都市大学; 東京都市大学; 東京都市大学; 宇宙航空研究開発機構 (JAXA); 宇宙航空研究開発機構 (JAXA)
Author Affiliation(eng)Tokyo City University; Tokyo City University; Tokyo City University; Japan Aerospace Exploration Agency (JAXA); Japan Aerospace Exploration Agency (JAXA)
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 page137
End page141
Publication date2012-02-20
AbstractSpacecrafts are charged under plasma environment and radiation environment in space, and it may lead failures and anomalies of spacecrafts when discharge on the spacecraft surface occurs. One of the most important surface materials is cover glass for solar-cells which is a source of an electrical power. The purpose of this paper is to investigate surface-potential characteristics of cover glasses with coatings after electron irradiation. We found that the surface potential on cover glasses becomes positive within a few hours after irradiation. Comparing the surface potential histories of coated cover glass and silica glass revealed that the positive potential of cover glass is due to ionization of metallic atoms in surface coating material. The positive potential is relaxed over several days which will increase a risk of discharge. We conclude it is necessary to select coating materials difficult to ionization by charged particles.
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
Keywordsspace; solar cell; cover glass; electron beam
Document TypeConference Paper
JAXA Category特別資料
Report NoJAXA-SP-11-012

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.