| Project/Area Number |
23760292
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Electronic materials/Electric materials
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| Research Institution | Tokyo City University |
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Principal Investigator |
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| Project Period (FY) |
2011 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2011: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
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| Keywords | 宇宙機 / 宇宙環境 / プロトン / 帯電 / PEA 法 / 半導体 / ポリイミド / 計測工学 / 圧力波検出 / 帯電計測 / PEA法 / 半導体センサ / プロトン照射 |
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| Research Abstract |
The spacecraft is always exposed to plasma and/or radioactive-rays such as 〓, 〓 and 〓-rays. When the insulating materials, in which the spacecraft is wrapped to keep temperature in it stable, are irradiated by the radioactive-rays, sometimes an unexpected accident due to an electrostatic discharge occurs. However, it has not known how the irradiation affects to change of the electrical properties of the materials. Therefore, as the satellite development needs the charging information and charging phenomena of surface materials of satellite on the orbit, we have developed the charging measurement system of it on the orbit with high radioactive-rays resistivity. In this paper, we started to develop new semiconductor sensor for charging measurement sensor using Pulsed electroacoustic (PEA) method. Furthermore, we also focused on an internal charging phenomenon on irradiated polyimide for spacecraft using small PEA system for irradiation using present polymer piezo sensor.
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