Budget Amount *help |
¥47,320,000 (Direct Cost: ¥36,400,000、Indirect Cost: ¥10,920,000)
Fiscal Year 2012: ¥10,530,000 (Direct Cost: ¥8,100,000、Indirect Cost: ¥2,430,000)
Fiscal Year 2011: ¥17,030,000 (Direct Cost: ¥13,100,000、Indirect Cost: ¥3,930,000)
Fiscal Year 2010: ¥19,760,000 (Direct Cost: ¥15,200,000、Indirect Cost: ¥4,560,000)
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Research Abstract |
We developed ELF (ELectron-emitting Film) to mitigate spacecraft charging. ELF is film made of fluoro-polymer coating over etched copper plate. The coating is to make electron field emission in a passive manner utilizing the charging of the coating due to energetic electrons in orbit. We carried out on-orbit demonstration of ELF onboard a nanosatellite, HORYU-II, that was launched to 680km polar orbit. We confirmed charging of the fluoro-polymer and the electron emission current up to 6μA over the aurora zone.
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