orbiting debris, space dust, pulsed laser, hypervelocity impact, Nd:YAG laser, metal plate, plasma measurement, probe array system, spacecraft surface, research and development, electron temperature, electron density
その他のタイトル（英）
Plasma measurement using probe array system generated by pulsed laser
Tokai University
Institute of Space and Astronautical Science
Tokai University
Institute of Space and Astronautical Science
出版者
宇宙科学研究所
出版者（英）
The Institute of Space and Astronautical Science (ISAS)
雑誌名
第22回宇宙エネルギーシンポジウム 平成14年度
雑誌名(英)
The 22nd ISAS Space Energy Symposium March 12, 2003
ページ
110 - 114
発行年
2003-05
抄録（英）
Space dusts, such as natural meteoroids or man made orbiting debris, are recognized as a serious and growing threat to man's utilization and exploration of space. Hypervelocity impact caused by the space debris will produce a serious damage to the spacecraft physically and electrically. The experiments were carried out for the research on the debris impacts using the pulsed laser system that simulates the hypervelocity impact of the space dust against the surface of the spacecraft. The 10 mJ Nd:YAG laser with a pulse width of 10 ns was used in this experiment. Al, Fe and Ag plates were used for the targets. Generated plasma by irradiation of the pulsed laser was measured using the double probe array system. Electron temperature and Electron density were calculated from the I-V probe characteristics obtained by repetitive laser shots for various bias voltages. Also, the velocity of the plasma cloud for each target was calculated from the time differences measured by the probe array.
薄膜材料への超高速飛翔体衝突におけるプラズマ生成に関する基礎実験
