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
| Autor: | Konishi, Yosuke, Tanaka, Koji, Tanaka, Makoto, Sasaki, Susumu |
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| Jazyk: | japonština |
| Rok vydání: | 2003 |
| Předmět: |
宇宙ダスト
電子温度 electron temperature 宇宙機表面 space dust 軌道するデブリ 電子密度 hypervelocity impact Nd:YAGレーザー research and development pulsed laser プローブアレイ・システム 金属板 electron density orbiting debris Astrophysics::Galaxy Astrophysics probe array system 超高速衝突 spacecraft surface metal plate plasma measurement プラズマ測定 Physics::Space Physics Nd:YAG laser Astrophysics::Earth and Planetary Astrophysics パルスレーザー 研究開発 |
| Zdroj: | 第22回宇宙エネルギーシンポジウム 平成14年度 = The 22nd ISAS Space Energy Symposium March 12, 2003. :110-114 |
| Popis: | 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. 資料番号: AA0045915023 |
| Databáze: | OpenAIRE |
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