| Project/Area Number |
62045036
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| Research Category |
Grant-in-Aid for Overseas Scientific Survey.
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| Allocation Type | Single-year Grants |
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| Section | University-to-University Cooperative Research |
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| Research Institution | Musashi Institute of Technology |
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Principal Investigator |
TAKADA Tatsuo Faculty of Engineering, Musashi Institute of Technology, 工学部, 教授 (10061532)
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| Co-Investigator(Kenkyū-buntansha) |
チャザン クック マサチューセッツ工科大学, 講師
マルカス ザーン マサチューセッツ工科大学, 教授
KARASAWA Shigeru Faculty of Engineering, Musashi Institute of Technology, 工学部, 講師 (90061514)
COOKE Cathan M. LEES High Voltage, Massachusetts Institute of Technology, U.S.A.
ZAHN Markus LEES High Voltage, Massachusetts Institute of Technology, U.S.A.
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| Project Period (FY) |
1987 – 1989
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| Project Status |
Completed (Fiscal Year 1989)
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| Budget Amount *help |
¥5,500,000 (Direct Cost: ¥5,500,000)
Fiscal Year 1989: ¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 1988: ¥1,700,000 (Direct Cost: ¥1,700,000)
Fiscal Year 1987: ¥2,000,000 (Direct Cost: ¥2,000,000)
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| Keywords | Space Charge Accumulation / Space Craft / Electric Field Distribution / Insulating Polymeric Materials / Cosmoric Ray Irradiation / Electron Beam Irradiation / Radiation Induced Conductivity / 逆畳込み積分データ処理 |
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| Research Abstract |
In spacecraft, discharge of space charges accumulated by radioactive rays in dielectric materials for thermal control degrades these materials and induces operational problems. And we could discuss the distribution profiles of electric field intensity, mobility and conductivity in polymeric insulating materials, for the first time, from experimental results of the charge density distribution as a function of time. The charge density distribution profiles in insulating materials were measured continuously during and after irradiation by the pulsed electroacoustic new method specially developed by our group.
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