Non-equilibrium multi-composition fast atomic beam formation for ground-based space environmental simulations
| Project/Area Number |
26289322
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Aerospace engineering
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| Research Institution | Kobe University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
横田 久美子 神戸大学, 工学研究科, 助手 (20252794)
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| Project Period (FY) |
2014-04-01 – 2019-03-31
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| Project Status |
Completed (Fiscal Year 2018)
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| Budget Amount *help |
¥15,730,000 (Direct Cost: ¥12,100,000、Indirect Cost: ¥3,630,000)
Fiscal Year 2017: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2016: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2015: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2014: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
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| Keywords | 宇宙環境 / 原子状酸素 / 超低軌道 / 火星大気 / 複合環境 / 高質量分子 / 材料劣化 / 地上試験 / 複合効果 / 多成分原子ビーム / 地上シミュレーション |
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| Outline of Final Research Achievements |
The purpose of this project is to establish a ground-based experimental techniques based on a science. This becomes important because the reproduction of space environment in a ground-based facilities are impossible in a current technology. A gas mixture system were installed for forming multiple composition hyperthermal beam in order to simulate sub-low Earth orbit environment. A method to reduce extreme ultraviolet emission from a laser-driven plasma was also explored. Martian atmosphere is successfully simulated by the one-nozzle two-beam method which is capable to reduce dissociation of N2 in the nozzle. A series of experiments carried out in this project enlarged the application of laser detonation technique for simulating neutral gas environment which many planet probes may encounters in future mission.
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| Academic Significance and Societal Importance of the Research Achievements |
広範な宇宙環境での材料劣化現象を理解するには、これまで重視されてきた原子状酸素のみではなく、不活性高エネルギー分子衝突を再現できるシミュレーション技術が必要とされている。さらに実宇宙環境を完全には再現できない現状では、地上試験環境で定量性を担保するには表面科学をベースにした原理的な理解が不可欠である。そこで本研究では、世界初となる非熱平衡混合原子・分子ビームを発生させる技術開発、放射光などの先進表面分析の導入による複雑反応系における化学反応メカニズム解明・定量推定精度向上を通して、世界に先駆けサイエンスに立脚した広範な宇宙環境に適用可能な軌道上曝露試験の基盤技術を確立することに成功した。
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Report
(6 results)
Research Products
(99 results)
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[Journal Article] Soft X-ray irradiation effect on the fluorinated DLC film,” Hiroki Takamatsu, Makoto Okada, Masahito Niibe,2017
Author(s)
XiaoLong Zhou, Kenji Komatsu, Hidetoshi Saito, Hiroki Akasaka, Akihiko Saiga, Koji Tamada, Masahito Tagawa, Kumiko Yokota, Yuichi Furuyama, Kazuhiro Kanda,
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Journal Title
Diamond and Related Materials,
Volume: 79
Pages: 14-20
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Peer Reviewed
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[Journal Article] Hyperthermal atomic oxygen beam irradiation effect on the hydrogenated Si-doped DLC film2015
Author(s)
Kengo Kidena, Minami Endo, Hiroki Takamatsu, Ryo Imai, Masahito Niibe, Kumiko Yokota, Masahito Tagawa, Yuichi Furuyama, Keiji Komatsu, Hidetoshi Saitoh, Kazuhiko Kanda,
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Journal Title
Trans. Mat. Res. Soc. Japan
Volume: 40
Pages: 353-358
NAID
Related Report
Acknowledgement Compliant
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[Presentation] One-nozzle two-beam laser-detonation system2018
Author(s)
Kumiko Yokota, Kazuki Kita, Ryota Okura, Teppei Shimizu, Sze Keat Chee, Minoru Iwata, Masahito Tagawa
Organizer
14th International Symposium on Materials in the Space Environment/12th International Conference on protection of Materials and Structures in a Space Environment,
Related Report
Int'l Joint Research
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[Presentation] Acceleration of Solid Particle Using GXII Laser System2015
Author(s)
Yukihito Kitazawa, Yoichiro Hironaka, Jyunki Ohira, Takayoshi Sano ,Keisuke Shigemori, Masahito Tagawa, Haruhisa Matsumoto
Organizer
1st Workshop on Laser solutions for Orbital Space Debris
Place of Presentation
Paris, France
Year and Date
2015-04-27
Related Report
Int'l Joint Research
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[Book] 最新実用真空技術総覧2019
Author(s)
最新実用真空技術総覧 編集委員会
Total Pages
1084
Publisher
エヌ・ティー・エス
ISBN
9784860435592
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