Saitama University
Saitama University
Saitama University
Japan Aerospace Exploration Agency (JAXA)
出版者
宇宙航空研究開発機構
出版者（英）
Japan Aerospace Exploration Agency (JAXA)
雑誌名
宇宙航空研究開発機構特別資料: 第4回宇宙環境シンポジウム講演論文集
雑誌名(英)
JAXA Special Publication: Proceedings of the 4th Spacecraft Environment Symposium
巻
JAXA-SP-07-030
ページ
125 - 128
発行年
2008-03-31
抄録（英）
Some kinds of film and paint-type coating materials are used as a thermal control material for the artificial satellite. It is necessary to survey the characteristics of the thermal, optical, mechanical and electrical properties about them. This report describes results of measurement of the photoemission current from the film and paint-type coating materials excited by ultraviolet-light. The used film samples were four kinds of materials (germanium coating, ITO (Indium Tin Oxide) coating, nonconductive) and the used coating samples were seven kinds of white paint materials (inorganic conductive, inorganic nonconductive, silicon based conductive, silicon based nonconductive) which are used for the artificial satellite. The following measurement results were obtained. Photoemission sites on each sample were distributed into active area and inactive area. Photoemission currents value of conductive samples are larger than those of nonconductive samples except for white paint B. Photoemission currents of Ge-coated films are uniformly distributed all over the sample. The current values are less than those of ITO-coated film. Photoemission currents value of silicon based samples were smaller than those of inorganic samples. Distributions of active area and inactive area about photoemission sites on white paint materials is greater than those of film samples.
衛星用表面材料の光電子放出電流分布の測定
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