| Project/Area Number |
22244056
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Solid earth and planetary physics
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| Research Institution | Japan Aerospace Exploration Agency |
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Principal Investigator |
KATO Manabu 独立行政法人宇宙航空研究開発機構, 宇宙科学研究所, 教授 (80115550)
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| Co-Investigator(Kenkyū-buntansha) |
ARAKAWA Masahiko 神戸大学, 大学院・理学研究科, 教授 (10222738)
NAKAMURA Akiko 神戸大学, 大学院・理学研究科, 准教授 (40260012)
KADONO Toshihiko 産業医科大学, 医学部, 教授 (60359198)
SUGITA Seiji 東京大学, 新領域創成科学研究科, 教授 (80313203)
WADA Kouji 千葉工業大学, 惑星探査研究センター, 上席研究員 (10396856)
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| Co-Investigator(Renkei-kenkyūsha) |
HASEGAWA Sunao 独立行政法人宇宙航空研究開発機構, 宇宙科学研究所, 開発員 (10399553)
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| Project Period (FY) |
2010 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥47,580,000 (Direct Cost: ¥36,600,000、Indirect Cost: ¥10,980,000)
Fiscal Year 2012: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000)
Fiscal Year 2011: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000)
Fiscal Year 2010: ¥32,760,000 (Direct Cost: ¥25,200,000、Indirect Cost: ¥7,560,000)
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| Keywords | クレーター / 衝撃波 / X線透過法 / イジェクタ / 二段式軽ガス銃 / スケール則 / 衝突蒸気雲 / 掘削流 / 離散要素法 |
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| Research Abstract |
We have introduced a pair of flash X-ray system with the applied voltage of 300kV in order to study the transient phenomena during the high velocity collision among planetary bodies, and we have tried to construct a new perspective of an impact cratering process by means of these apparatus. Then, we succeeded to observe the impact penetration of a projectile and the crater formation accompanied by this penetration. As a result, we have obtained several new results on the laboratory experiments of the projectile penetration and the crater formation on the porous target, the numerical simulation of the excavation flow during the crater formation, and the observation of the ejecta-expansion from the impact point.
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