Non-equilibrium multi-composition fast atomic beam formation for ground-based space environmental simulations

• Project/Area Number: 26289322
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Aerospace engineering
• Research Institution: Kobe University
• Principal Investigator: Tagawa Masahito 神戸大学, 工学研究科, 准教授 (10216806)
• Co-Investigator(Kenkyū-buntansha): 横田 久美子 神戸大学, 工学研究科, 助手 (20252794)
• Project Period (FY): 2014-04-01 – 2019-03-31
• Project Status: Completed (Fiscal Year 2018)
• Budget Amount: ¥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)
• 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

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.

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。

Research Products

• [Journal Article] オーガナイズドセッション：先進材料の熱物性と宇宙システムデザイン (2017)
  • Author(s): 岩田稔、長野方星、太刀川純孝、田川雅人、
  • Journal Title: 熱物性 Volume: 31 Pages: 39-40
• [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,
  • Journal Title: Diamond and Related Materials, Volume: 79 Pages: 14-20
  • Peer Reviewed
• [Journal Article] 宇宙環境工学の観点から見たSLATSへの期待 (2016)
  • Author(s): 田川雅人、井出健太、山崎勇希、北一貴、横田久美子
  • Journal Title: 超低高度衛星の利用に向けたワークショップ報告書 Volume: SP-16-001 Pages: 153-162
• [Journal Article] 第11回アジア熱物性会議（PC2016）開催報告, OS-19, Thermophysical Properties of Space Materials and Thermal Control (2016)
  • Author(s): 崎一紀、長野方星、太刀川純孝、田川雅人
  • Journal Title: 熱物性 Volume: 30 Pages: 229-230
• [Journal Article] オーガナイズドセッション：先進材料の熱物性と宇宙システムデザイン (2016)
  • Author(s): 長野方星、岩田稔、太刀川純孝、田川雅人
  • Journal Title: 熱物性 Volume: 30 Pages: 41-42
• [Journal Article] Development of solid particle accelerator using GXII laser system (2015)
  • Author(s): Yoichiro Hironaka, Masahito Tagawa, Kumiko Yokota, Junki Ohira, Takayoshi Sano, Keisuke Shigemori
  • Journal Title: 大阪大学レーザーエネルギー学研究センター平成26年度共同利用・共同研究成果報告書 Volume: １ Pages: 68-69
  • Acknowledgement Compliant
• [Journal Article] Evaluation of EUV emission from the sub-LEO space environment al simulator using carbon dioxide laser: FY2014 report (2015)
  • Author(s): Masahito Tagawa, Kumiko Yokota, Junki Ohira, Kaoru Morimoto, Yugo Kimoto, Hiroaki Nishimura
  • Journal Title: 大阪大学レーザーエネルギー学研究センター平成26年度共同利用・共同研究成果報告書 Volume: １ Pages: 185-186
  • Acknowledgement Compliant
• [Journal Article] 10km/s を超える粒子加速器の開発 (2015)
  • Author(s): 田川雅人, 弘中陽一郎
  • Journal Title: 東京工業大学応用セラミックス研究所平成26年度共同利用研究報告書 Volume: 19 Pages: 191-193
  • Acknowledgement Compliant
• [Journal Article] Hyperthermal atomic oxygen beam irradiation effect on the hydrogenated Si-doped DLC film (2015)
  • Author(s): Kengo Kidena, Minami Endo, Hiroki Takamatsu, Ryo Imai, Masahito Niibe, Kumiko Yokota, Masahito Tagawa, Yuichi Furuyama, Keiji Komatsu, Hidetoshi Saitoh, Kazuhiko Kanda,
  • Journal Title: Trans. Mat. Res. Soc. Japan Volume: 40 Pages: 353-358
  • NAID: 130005113364
  • Acknowledgement Compliant
• [Journal Article] Resistance of Hydrogenated Titanium-Doped Diamond-Like Carbon Film to Hyperthermal Atomic Oxygen (2015)
  • Author(s): K. Kidena, M. Endo, H. Takamatsu, M. Niibe, M. Tagawa, K. Yokota, Y. Furuyama, K. Komatsu, H. Saitoh, K. Kanda
  • Journal Title: Metals Volume: 5 Issue: 4 Pages: 1957-1970
  • DOI: 10.3390/met5041957
  • Peer Reviewed
• [Journal Article] Hyperthermal atomic oxygen beam irradiation effect on the Ti-containing DLC film (2014)
  • Author(s): Kazuhiro Kanda, Kazuhiro Fukuda, Ryo Imai, Masahito Niibe, Sinya Fujimoto, Kumiko Yokota, Masahito Tagawa
  • Journal Title: Diamond and Related Materials Volume: 41 Pages: 49-52
  • DOI: 10.1016/j.diamond.2013.10.006
  • Peer Reviewed
• [Journal Article] レーザーデトネーション法による低軌道宇宙環境地上シミュレーションとEUV (2014)
  • Author(s): 田川雅人, 横田久美子
  • Journal Title: レーザー研究 Volume: 42 Pages: 50-54
  • NAID: 130007897472
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] A synchrotron radiation photoelectron spectroscopic study on the oxidation of Si in diamond-like carbon film by hyperthermal O-atom beam (2014)
  • Author(s): Kumiko Yokota, Masahito Tagawa, Akitaka Yoshigoe, Yuden Teraoka
  • Journal Title: Journal of Surface Analysis Volume: 20 Pages: 221-225
  • NAID: 130007699911
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Multiple-composition hyperthermal atomic beams formed by a laser-induced plasma for planetary environmental studies (2014)
  • Author(s): Kumiko Yokota, Daiki Watanabe, Junki Ohira, Masahito Tagawa
  • Journal Title: Physica Scripta Volume: T161 Pages: 013035-013035
  • DOI: 10.1088/0031-8949/2014/t161/014035
  • Peer Reviewed / Acknowledgement Compliant
• [Presentation] 超低軌道環境における中性ガス衝突誘起材料劣化現象メカニズムの解析 (2019)
  • Author(s): 横田久美子、田川雅人
  • Organizer: SLATS報告会
• [Presentation] レーザーデトネーション超熱分子線の解離抑制 (2019)
  • Author(s): 横田久美子、大倉僚太、藤本友介、田川雅人
  • Organizer: 第66回応用物理学会春季学術講演会
• [Presentation] A consideration of degradation of polymeric materials in sub-low Earth orbits space environment (2018)
  • Author(s): Yusuke Fujimoto, Ryota Okura, Kazuki Kita, Minoru Iwata, Kumiko Yokota, Masahito Tagawa
  • Organizer: 15th Spacecraft Charging Technology Conference,
  • Int'l Joint Research
• [Presentation] Development of a pulsed supersonic valve aimed for Martian atmospheric simulation (2018)
  • Author(s): Ryota Okura, Yusuke Fujimoto, Kazuki Kita, Minoru Iwata, Chee Sze Keat, Yugo Kimoto, Kumiko Yokota, Masahito Tagawa
  • Organizer: 15th Spacecraft Charging Technology Conference,
  • Int'l Joint Research
• [Presentation] Plasma particle simulation of ECR plasma generation in Air Breathing Ion Engine (ABIE) (2018)
  • Author(s): Ryo Shirakawa, Hideyuki Usui, Yohei Miyake, Masahito Tagawa, Kazutaka Nishiyama
  • Organizer: 15th Spacecraft Charging Technology Conference,
  • Int'l Joint Research
• [Presentation] One-nozzle two-beam laser-detonation system (2018)
  • 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,
  • Int'l Joint Research
• [Presentation] Over-estimation of atomic oxygen fluences due to undecomposed oxygen molecules included in hyperthermal beams (2018)
  • Author(s): Masahito Tagawa, Kazuki Kita, Ryota Okura, Yusuke Fujimoto, Ryo Shirakawa, Teppei Shimizu, Minoru Iwata, Kumiko Yokota,
  • Organizer: 14th International Symposium on Materials in the Space Environment/12th International Conference on protection of Materials and Structures in a Space Environment,
  • Int'l Joint Research
• [Presentation] Enhancement of atomic oxygen resistance of charge dissipative ion beam treated polymers (2018)
  • Author(s): Z. Iskanderova, J. Kleiman, F. Bussieres, M. Tagawa, R. Ng, R. Sodhi
  • Organizer: 14th International Symposium on Materials in the Space Environment/12th International Conference on protection of Materials and Structures in a Space Environment,
  • Int'l Joint Research
• [Presentation] Cultivation of research and project-support network for degradation of space-use materials -Concept of cluster type in-situ test facilities system- (2018)
  • Author(s): Minoru Iwata, Masahito Tagawa, Sumitaka Tachikawa, Issei Kato, Takayuki Hirose
  • Organizer: 14th International Symposium on Materials in the Space Environment/12th International Conference on protection of Materials and Structures in a Space Environment,
  • Int'l Joint Research
• [Presentation] Evaluation of vacuum transfer vessel performance to construct cluster type in-situ test facilities network (2018)
  • Author(s): Alexandre Simon, Minoru Iwata, Masahito Tagawa, Sumitaka Tachikawa
  • Organizer: 14th International Symposium on Materials in the Space Environment/12th International Conference on protection of Materials and Structures in a Space Environment,
  • Int'l Joint Research
• [Presentation] 超低軌道環境における中性ガス衝突誘起材料劣化現象メカニズムの解析 (2018)
  • Author(s): 横田久美子、田川雅人
  • Organizer: 第4回超低高度衛星の利用に向けたワークショップ
• [Presentation] 原子状酸素ビーム照射試験における残留未解離酸素分子の影響 (2018)
  • Author(s): 横田久美子、北 一貴、藤本友介、大倉僚太、田川雅人
  • Organizer: 第79回応用物理学会秋季学術講演会
• [Presentation] 超低軌道宇宙環境における高分子材料の劣化特性とSLATSデータとの比較検討 (2018)
  • Author(s): 藤本友介、井出航、大倉僚太、岩田稔、土屋佑太、後藤亜季、行松和輝、木本雄吾、横田久美子、田川雅人
  • Organizer: 第62回宇宙科学技術連合講演会
• [Presentation] 惑星高層大気環境模擬のための複合分子線システムの構築とロングノズルの効果 (2018)
  • Author(s): 大倉僚太、藤本友介、清水鉄平、岩田稔、木本雄吾、横田久美子、田川雅人
  • Organizer: 第62回宇宙科学技術連合講演会
• [Presentation] ISS材料劣化実験における原子状酸素フルーエンス計測法に関する一考察 (2018)
  • Author(s): 田川雅人、藤本友介、大倉僚太、白川遼、井出航、横田久美子、Kim K. de Groh, Bruce A. Banks
  • Organizer: 第15回宇宙環境シンポジウム
• [Presentation] 超低軌道宇宙環境模擬のためのワンノズルツービームレーザーデトネーション原子状酸素ビーム装置 (2018)
  • Author(s): 横田久美子、大倉僚太、藤本友介、岩田稔、田川雅人
  • Organizer: 第39回日本熱物性シンポジウム
• [Presentation] 宇宙用材料を指向した液晶ポリマーへの原子状酸素照射 (2018)
  • Author(s): 小柴康子, 横田久美子，西本卓馬, 堀家匠平, 福島達也, 田川雅人, 石田謙司
  • Organizer: 第79回応用物理学会秋季学術講演会
• [Presentation] ExHAMによる圧電素子の宇宙環境曝露試験計画 (2018)
  • Author(s): 田中宏明、小木曽望、池田忠繁、石村康生、藤垣元治、後藤優太、,田川雅人、岩田稔、樋口健、勝又暢久、岩佐貴史、坂本啓、岸本直子、波多英寛、仙場淳彦
  • Organizer: 第34回宇宙構造・材料シンポジウム
• [Presentation] A pulsed supersonic valve aimed for Martian atmospheric simulation (2017)
  • Author(s): yota Okura, Minoru Iwata, Chee Sze Keat, Kumiko Yokota, Masahito Tagawa
  • Organizer: 31st International Symposium on Space Technology and Science,
  • Place of Presentation: Matsuyama, Japan
  • Year and Date: 2017-06-03
  • Int'l Joint Research
• [Presentation] Mass-loss of FEP/Ag films in sub-low Earth orbit space environment, (2017)
  • Author(s): usuke Fujimoto, Kazuki Kita, Yasuko Koshiba, Kenji Ishida, Minoru Iwata, Kumiko Yokota, Masahito Tagawa
  • Organizer: 31st International Symposium on Space Technology and Science,
  • Place of Presentation: Matsuyama, Japan
  • Year and Date: 2017-06-03
  • Int'l Joint Research
• [Presentation] Accelerating effect of atomic oxygen-induced polyimide degradation due to simultaneous collision of chemically inert molecules (2017)
  • Author(s): Kazuki Kita, Yusuke Fujimoto, Yuki Yamasaki, Minoru Iwata, Kumiko Yokota, Masahito Tagawa
  • Organizer: 31st International Symposium on Space Technology and Science,
  • Place of Presentation: Matsuyama, Japan
  • Year and Date: 2017-06-03
  • Int'l Joint Research
• [Presentation] 宇宙環境地上試験におけるEUV放射強度の低減 (2017)
  • Author(s): 横田久美子、大平淳貴、大藪高詩、木本雄吾、西村博明、田川雅人
  • Organizer: 第78回応用物理学会春季学術講演会
  • Place of Presentation: 横浜（日本）
  • Year and Date: 2017-03-14
• [Presentation] レーザー駆動混合ガスプラズマからの極端紫外線放射スペクトル ―混合割合によるスペクトル変化― (2017)
  • Author(s): 田川雅人、大平淳貴、木本雄吾、西村博明、横田久美子
  • Organizer: 第78回応用物理学会春季学術講演会
  • Place of Presentation: 横浜（日本）
  • Year and Date: 2017-03-14
• [Presentation] Hyperthermal multiple component molecular/atomic beams: Formation and application to surface science on future space exploration (2017)
  • Author(s): Tsubasa Yasukochi, Kaoru Morimoto, Kumiko Yokota, Masahito Tagawa
  • Organizer: Symposium on Surface Science & Nanotechnology -25th Anniversary of SSSJ Kansai-
  • Place of Presentation: Kyoto (Japan)
  • Year and Date: 2017-01-24
  • Int'l Joint Research
• [Presentation] A pulsed supersonic valve aimed for Martian atmospheric simulation (2017)
  • Author(s): Ryota Okura, Minoru Iwata, Chee Sze Keat, Kumiko Yokota, Masahito Tagawa,
  • Organizer: 31st International Symposium on Space Technology and Science,
  • Int'l Joint Research
• [Presentation] Mass-loss of FEP/Ag films in sub-low Earth orbit space environment, (2017)
  • Author(s): Yusuke Fujimoto, Kazuki Kita, Yasuko Koshiba, Kenji Ishida, Minoru Iwata, Kumiko Yokota, Masahito Tagawa,
  • Organizer: 31st International Symposium on Space Technology and Science,
  • Int'l Joint Research
• [Presentation] Accelerating effect of atomic oxygen-induced polyimide degradation due to simultaneous collision of chemically inert molecules (2017)
  • Author(s): Kazuki Kita, Yusuke Fujimoto, Yuki Yamasaki, Minoru Iwata, Kumiko Yokota, Masahito Tagawa,
  • Organizer: 31st International Symposium on Space Technology and Science,
  • Int'l Joint Research
• [Presentation] A consideration on surface corrosion mechanism of fluoroethylenepropylene (FEP) films in sub-low earth orbit (LEO) environment (2017)
  • Author(s): Kumiko Yokota, Yusuke Fujimoto, Ryota Okura, Kazuki Kita, Masahito Tagawa,
  • Organizer: 33rd European Conference on Surface Science,
  • Int'l Joint Research
• [Presentation] Collision-induced enhancement of polyimide corrosion in sub-low Earth orbit (LEO) space environment (2017)
  • Author(s): Masahito Tagawa, Ryota Okura, Yusuke Fujimoto, Kazuki Kita, Kumiko Yokota,
  • Organizer: 33rd European Conference on Surface Science,
  • Int'l Joint Research
• [Presentation] Molecular beam source for degradation studies of polyimide-based thermal blanket in very low altitude space environment (2017)
  • Author(s): Kumiko Yokota, Ryota Okura, Chee Sze Keat, Masahito Tagawa,
  • Organizer: 21st European Thermophysical Properties Conference,
  • Int'l Joint Research
• [Presentation] A consideration on degradation of FEP-based radiator equipped to low altitude spacecraft (2017)
  • Author(s): Masahito Tagawa, Yusuke Fujimoto, Kazuki Kita, Kumiko Yokota, European
  • Organizer: 21st European Thermophysical Properties Conference,
  • Int'l Joint Research
• [Presentation] 宇宙環境誘起材料劣化に関する最近の話題：劣化原因と複合効果の理解は正しかったのか (2017)
  • Author(s): 田川雅人
  • Organizer: 第330回生存圏シンポジウム
  • Invited
• [Presentation] 宇宙環境誘起材料劣化に関する最近の話題：劣化原因と複合効果の理解は正しかったのか (2017)
  • Author(s): 田川雅人、横田久美子
  • Organizer: 第330回生存圏シンポジウム
  • Place of Presentation: 京都（日本）
  • Invited
• [Presentation] A pulsed supersonic valve system for researches on collision-induced reactive thin film etching phenomena, (2016)
  • Author(s): Masahito Tagawa, Kumiko Yokota, Tsubasa Yasukochi, Chee Sze Keat,
  • Organizer: Pacific Rim Symposium on Surfaces, Coatings and Interfaces
  • Place of Presentation: Kohala Coast (USA)
  • Year and Date: 2016-12-12
  • Int'l Joint Research
• [Presentation] Extreme ultraviolet emission from laser-induced O2+Ar plasmas relevance to ground-based simulation of thin film etching reactions in low Earth orbit (2016)
  • Author(s): Masahito Tagawa, Takashi Ohyabu, Junki Ohira, Kaoru Morimoto, Kumiko Yokota
  • Organizer: Pacific Rim Symposium on Surfaces, Coatings and Interfaces
  • Place of Presentation: Kohala Coast (USA)
  • Year and Date: 2016-12-12
  • Int'l Joint Research
• [Presentation] 火星高層大気環境シミュレーションを目指した超熱混合分子ビーム形成の試み (2016)
  • Author(s): 田久美子、初田光嶺、田川雅人
  • Organizer: 第37回日本熱物性シンポジウム
  • Place of Presentation: 岡山（日本）
  • Year and Date: 2016-11-28
• [Presentation] 宇宙材料劣化研究拠点による学術研究の活性化と高度な衛星プロジェクト支援 (2016)
  • Author(s): 岩田稔、田川雅人、太刀川純孝、平尾敏雄、大津志保
  • Organizer: 第37回日本熱物性シンポジウム
  • Place of Presentation: 岡山（日本）
  • Year and Date: 2016-11-28
• [Presentation] Atomic oxygen-induced erosion property of polyimide-based multilayer insulation in very low altitudes, (2016)
  • Author(s): Kumiko Yokota, Yuki Yamasaki, Kazuki Kita, Masahito Tagawa
  • Organizer: 11th Asia Thermophysical Properties Conference
  • Place of Presentation: Yokohama, Japan
  • Year and Date: 2016-10-02
  • Int'l Joint Research
• [Presentation] 不活性分子同時衝突による原子状酸素誘起材料劣化の加速効果 (2016)
  • Author(s): 北一貴, 山崎勇希, 横田久美子, 田川雅人
  • Organizer: 第60回宇宙科学技術連合講演会
  • Place of Presentation: 函館（日本）
  • Year and Date: 2016-09-06
• [Presentation] 原子状酸素誘起材料劣化地上試験に関わる複合効果について (2016)
  • Author(s): 田川雅人、横田久美子
  • Organizer: 第60回宇宙科学技術連合講演会
  • Place of Presentation: 函館（日本）
  • Year and Date: 2016-09-06
• [Presentation] 超低軌道領域における大気吸入型イオンエンジンの利用と課題 (2016)
  • Author(s): 安河内翼、臼井英之、三宅洋平、福田雅人、横田久美子、田川雅人
  • Organizer: 第60回宇宙科学技術連合講演会
  • Place of Presentation: 函館（日本）
  • Year and Date: 2016-09-06
• [Presentation] 放電室内電界分布の計算結果を考慮した大気吸入型イオンエンジンの実験的研究 (2016)
  • Author(s): 安河内翼、臼井英之、三宅洋平、福田雅人、横田久美子、田川雅人
  • Organizer: 第60回宇宙科学技術連合講演会
  • Place of Presentation: 函館（日本）
  • Year and Date: 2016-09-06
• [Presentation] 固体粒子加速器への高出力レーザー応用 (2016)
  • Author(s): 守本郁、弘中陽一郎、重森啓介、佐野孝好、田川雅人、北澤幸人、阿藤敏行
  • Organizer: 第60回宇宙科学技術連合講演会
  • Place of Presentation: 函館（日本）
  • Year and Date: 2016-09-06
• [Presentation] 宇宙材料劣化研究拠点の形成と衛星プロジェクト支援（II） (2016)
  • Author(s): 岩田稔、田川雅人、太刀川純孝、平尾敏雄、大津志保
  • Organizer: 第60回宇宙科学技術連合講演会
  • Place of Presentation: 函館（日本）
  • Year and Date: 2016-09-06
• [Presentation] A fast piezoelectric-driven pulsed supersonic valve using displacement enlargement mechanism for molecular beam applications (2016)
  • Author(s): Masahito Tagawa, Kumiko Yokota, Chee Sze Keat,
  • Organizer: 16th Joint Vacuum Conference, 14th European Vacuum Conference
  • Place of Presentation: Portoroz, Slovenia
  • Year and Date: 2016-06-06
  • Int'l Joint Research
• [Presentation] Extreme ultraviolet emission from laser-induced plasma relevance to neutral gas environment simulation in low Earth orbit, (2016)
  • Author(s): Kumiko Yokota, Masahito Tagawa
  • Organizer: 16th Joint Vacuum Conference, 14th European Vacuum Conference
  • Place of Presentation: Portoroz, Slovenia
  • Year and Date: 2016-06-03
  • Int'l Joint Research
• [Presentation] Evaluation of the EUV emission from the sub-LEO space environmental simulation using carbon dioxide laser: FY2015 report (2016)
  • Author(s): Masahito Tagawa, Kumiko Yokota, Junki Ohira, Kaoru Morimoto, Yugo Kimoto, Hiroaki Nishimura
  • Organizer: レーザー研シンポジウム
  • Place of Presentation: 吹田（大阪）
  • Year and Date: 2016-04-19
• [Presentation] Development of solid particle accelerator usig GXII laser system (2016)
  • Author(s): Yoichiro Hironaka, Masahito Tagawa, Takayoshi Sano, Kaoru Morimoto, Keisuke Shigemori
  • Organizer: レーザー研シンポジウム
  • Place of Presentation: 吹田（大阪）
  • Year and Date: 2016-04-19
• [Presentation] 変位拡大機構を用いた高速超音速分子線バルブ (2016)
  • Author(s): 横田久美子、徐世傑、田川雅人
  • Organizer: 第77回応用物理学会秋季学術講演会
  • Place of Presentation: 新潟（日本）
• [Presentation] 超低軌道宇宙機用材料劣化地上試験 (2015)
  • Author(s): 田川雅人、山崎勇希、横田久美子
  • Organizer: 宇宙科学技術連合講演会
  • Place of Presentation: 鹿児島県民交流センター（鹿児島県・鹿児島市）
  • Year and Date: 2015-10-07
• [Presentation] 超低軌道地球環境下における原子状酸素と不活性高質量分子の同時衝突効果によるフッ素系ポリマーの劣化に関する研究 (2015)
  • Author(s): 山崎勇希 井出健太 北一貴 横田久美子 田川雅人
  • Organizer: 宇宙科学技術連合講演会
  • Place of Presentation: 鹿児島県民交流センター（鹿児島県・鹿児島市）
  • Year and Date: 2015-10-07
• [Presentation] Oxidation of titanium atoms in DLC films by hyperthermal atomic oxygen beam relevance to space environmental effect in LEO (2015)
  • Author(s): Masahito Tagawa, Akimine Hatsuda, Daiki Watanabe, Kumiko Yokota,
  • Organizer: 16th European Conference on Application of Surface and Interface Analysis
  • Place of Presentation: Granada, Spain.
  • Year and Date: 2015-09-28
  • Int'l Joint Research
• [Presentation] Energy dependence on oxidation of Si-containing polyimide by hyperthermal atomic oxygen collisions (2015)
  • Author(s): Kumiko Yokota, Daiki Watanabe, Akimine Hatsuda, Masahito Tagawa,
  • Organizer: 16th European Conference on Application of Surface and Interface Analysis
  • Place of Presentation: Granada, Spain.
  • Year and Date: 2015-09-28
  • Int'l Joint Research
• [Presentation] 原子状酸素ビーム誘起エッチングにおける高質量原子混合効果 (2015)
  • Author(s): 田川雅人、山崎勇希、横田久美子
  • Organizer: 第76回応用物理学会秋季学術講演会
  • Place of Presentation: 名古屋国際会議場（愛知県・名古屋市）
  • Year and Date: 2015-09-13
• [Presentation] Property of hyperthermal CO2 beam formed by a laser-detonation facility for space environmental effect studies in upper Martian atmosphere (2015)
  • Author(s): Masahito Tagawa, Akimine Hatsuda, Kumiko Yokota
  • Organizer: 13th International Conference on Laser Ablation
  • Place of Presentation: Cairns, Australia.
  • Year and Date: 2015-08-31
  • Int'l Joint Research
• [Presentation] Laser-detonation facility for acceleration of gaseous materials: Etching and deposition of solid materials (2015)
  • Author(s): Kumiko Yokota, Kenta Ide, Junki Ohira, Yuki Yamazaki, Kaoru Morimoto, Hidetoshi Asada, Masahito Tagawa
  • Organizer: 13th International Conference on Laser Ablation
  • Place of Presentation: Cairns, Australia.
  • Year and Date: 2015-08-31
  • Int'l Joint Research
• [Presentation] Three dimensional particle-in-cell simulation for the development of air breathing ion engine (2015)
  • Author(s): Shinichiro Kawaguchi, Hideyuki Usui, Yohei Miyake, Tsubasa Yasukochi, Masato Fukuda, Kumiko Yokota, Masahito Tagawa,
  • Organizer: Joint Conference, 30th International Symposium on Space Technology and Science and 34th International Electric Propulsion Conference
  • Place of Presentation: Kobe International Conference Center (Hyogo・Kobe)
  • Year and Date: 2015-07-04
• [Presentation] Synergistic effect of atomic oxygen and argon on polyimide erosion in sub-low Earth orbit (2015)
  • Author(s): Yuki Yamasaki, Kenta Ide, Kumiko Yokota, Masahito Tagawa
  • Organizer: Joint Conference, 30th International Symposium on Space Technology and Science and 34th International Electric Propulsion Conference
  • Place of Presentation: Kobe International Conference Center (Hyogo・Kobe)
  • Year and Date: 2015-07-04
  • Int'l Joint Research
• [Presentation] Numerical simulation of ECR plasma in air breathing ion engine (ABIE): Neutral gas density distribution and ECR plasma formation (2015)
  • Author(s): Tsubasa Yasukochi, Hideyuki Usui, Yohei Miyake, Shinichiro Kawaguchi, Masato Fukuda, Kumiko Yokota, Masahito Tagawa
  • Organizer: Joint Conference, 30th International Symposium on Space Technology and Science and 34th International Electric Propulsion Conference
  • Place of Presentation: Kobe International Conference Center (Hyogo・Kobe)
  • Year and Date: 2015-07-04
  • Int'l Joint Research
• [Presentation] Hyperthermal atomic/molecular beams formed by laser-detonation phenomenon with variable gas mixtures (2015)
  • Author(s): Kaoru Morimoto, Junki Ohira, Kumiko Yokota, Masahito Tagawa
  • Organizer: Joint Conference, 30th International Symposium on Space Technology and Science and 34th International Electric Propulsion Conference
  • Place of Presentation: Kobe International Conference Center (Hyogo・Kobe)
  • Year and Date: 2015-07-04
  • Int'l Joint Research
• [Presentation] Hyperthermal carbon dioxide beam formation for gas-surface interaction studies in upper Martian atmosphere (2015)
  • Author(s): Akimine Hatsuda, Kumiko Yokota, Masahito Tagawa
  • Organizer: Joint Conference, 30th International Symposium on Space Technology and Science and 34th International Electric Propulsion Conference
  • Place of Presentation: Kobe International Conference Center (Hyogo・Kobe)
  • Year and Date: 2015-07-04
  • Int'l Joint Research
• [Presentation] Effect of high-energy inert gas collisions on the atomic oxygen-induced polymer erosion (2015)
  • Author(s): Masahito Tagawa, Kenta Ide, Yuki Yamasaki, Daiki Watanabe, Kumiko Yokota
  • Organizer: 13th International Symposium on Materials in the Space Environment
  • Place of Presentation: Pau, France
  • Year and Date: 2015-06-22 – 2015-06-25
• [Presentation] Laser-detonation beam facilities for sub-LEO material erosion studies (2015)
  • Author(s): Kumiko Yokota, Kenta Ide, Yuki Yamasaki, Akimine Hatsuda, Masahito Tagawa
  • Organizer: 13th International Symposium on Materials in the Space Environment
  • Place of Presentation: Pau, France
  • Year and Date: 2015-06-22 – 2015-06-25
• [Presentation] Collision-induced oxidation of Si atoms embedded in carbon-based material (2015)
  • Author(s): Masahito Tagawa, Daiki Watanabe, Akimine Hatsuda, Yuichi Furuyama, Kazuhiro Kanda, Akitaka Yoshigoe, Yuden Teraoka, Koji Matsumoto, Kumiko Yokota
  • Organizer: 13th International Symposium on Materials in the Space Environment
  • Place of Presentation: Pau, France
  • Year and Date: 2015-06-22 – 2015-06-25
• [Presentation] Effect of high-energy inert gas collisions on the atomic oxygen-induced polymer erosion (2015)
  • Author(s): Masahito Tagawa, Kenta Ide, Yuki Yamasaki, Daiki Watanabe, Kumiko Yokota
  • Organizer: 13th International Symposium on Materials in the Space Environment
  • Place of Presentation: Pau, France.
  • Year and Date: 2015-06-22
  • Int'l Joint Research
• [Presentation] Laser-detonation beam facilities for sub-LEO material erosion studies (2015)
  • Author(s): Kumiko Yokota, Kenta Ide, Yuki Yamasaki, Akimine Hatsuda, Kaoru Morimoto, Masahito Tagawa
  • Organizer: 13th International Symposium on Materials in the Space Environment
  • Place of Presentation: Pau, France.
  • Year and Date: 2015-06-22
  • Int'l Joint Research
• [Presentation] Collision-induced oxidation of Si atoms embedded in carbon-based material (2015)
  • Author(s): Masahito Tagawa, Daiki Watanabe, Yuichi Furuyama, Kazuhiro Kanda, Akitaka Yoshigoe, Yuden Teraoka, Koji Matsumoto, Kumiko Yokota,
  • Organizer: 13th International Symposium on Materials in the Space Environment
  • Place of Presentation: Pau, France.
  • Year and Date: 2015-06-22
  • Int'l Joint Research
• [Presentation] Acceleration of Solid Particle Using GXII Laser System (2015)
  • 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
  • Int'l Joint Research
• [Presentation] Si, Ti添加ダイヤモンドライクカーボン膜表面酸化反応における原子状酸素衝突エネルギーの影響 (2014)
  • Author(s): 渡邉大樹、初田光嶺、古山雄一、神田一浩、吉越章隆、寺岡有殿、横田久美子、田川雅人
  • Organizer: 第11回宇宙環境シンポジウム
  • Place of Presentation: 大阪府立大学（大阪）
  • Year and Date: 2014-12-10 – 2014-12-11
• [Presentation] 超低高度大気環境による材料劣化現象について (2014)
  • Author(s): 横田久美子、山崎勇希、初田光嶺、井出健太、渡邊大樹、田川雅人
  • Organizer: 第58回宇宙科学技術連合講演会
  • Place of Presentation: ブリックホール（長崎）
  • Year and Date: 2014-11-18 – 2014-11-20
• [Presentation] 低軌道宇宙環境地上模擬試験の高度化について (2014)
  • Author(s): 田川雅人、横田久美子
  • Organizer: 第58回宇宙科学技術連合講演会
  • Place of Presentation: ブリックホール（長崎）
  • Year and Date: 2014-11-18 – 2014-11-20
• [Presentation] Hyperthermal collision of O-atom on metal-doped diamond-like carbon films: effect of collision energy on the formation of protective oxide films (2014)
  • Author(s): Daiki Watanabe, Akimine Hatsuda, Yuichi Furuyama, Kazuhiro Kanda, Akitaka Yoshigoe, Yuden Teraoka, Kumiko Yokota, Masahito Tagawa
  • Organizer: VASSCAA-7
  • Place of Presentation: Hsinchu, Taiwan ROC,
  • Year and Date: 2014-10-05 – 2014-10-09
• [Presentation] mportance of the hyperthermal (8km/s) gas/surface interactions in a complicated space environment for future spacecraft development (2014)
  • Author(s): Kumiko Yokota, Masahito Tagawa
  • Organizer: VASSCAA-7
  • Place of Presentation: Hsinchu, Taiwan ROC,
  • Year and Date: 2014-10-05 – 2014-10-09
• [Presentation] 宇宙材料分野でのビーム表面反応研究の必要性 (2014)
  • Author(s): 田川雅人
  • Organizer: 第75回応用物理学会秋季学術講演会
  • Place of Presentation: 北海道大学（札幌）
  • Year and Date: 2014-09-17 – 2014-09-20
• [Presentation] Si含有DLC膜の原子状酸素照射効果 (2014)
  • Author(s): 貴傳名健吾，新部雅人，横田久美子，田川雅人，古山雄一，小松啓志，斉藤秀俊，神田一浩
  • Organizer: 第75回応用物理学会秋季学術講演会
  • Place of Presentation: 北海道大学（札幌）
  • Year and Date: 2014-09-17 – 2014-09-20
• [Presentation] Formation of ultra-thin oxide film at Si(001) by well-characterized hyperthermal broad oxygen atom beam exposed at room temperature (2014)
  • Author(s): Masahito Tagawa, Kumiko Yokota, Akitaka Yoshigoe, Yuden Teraoka
  • Organizer: 13th European Vacuum Conference
  • Place of Presentation: Aveiro, Portugal
  • Year and Date: 2014-09-08 – 2014-09-12
• [Presentation] Protection of materials from O-atom collision in low Earth orbit using thin oxide film grown in space (2014)
  • Author(s): Kumiko Yokota, Akitaka Yoshigoe, Yuden Teraoka, Kazuhiro Kanda, Yuichi Furuyama, Koji Matsumoto, Masahito Tagawa
  • Organizer: 13th European Vacuum Conference
  • Place of Presentation: Aveiro, Portugal
  • Year and Date: 2014-09-08 – 2014-09-12
• [Presentation] Reduction of extreme ultraviolet emission from laser-induced oxygen plasma for atom-surface interaction studies in a simulated space environment (2014)
  • Author(s): Masahito Tagawa, Junki Ohira, Yugo Kimoto, Hiroaki Nishimura, Kumiko Yokota
  • Organizer: 30th European Conference on Surface Science
  • Place of Presentation: Antalya, Turkey
  • Year and Date: 2014-08-31 – 2014-09-05
• [Presentation] Formation of protective oxide film with self-healing capability on metal-doped diamond-like carbon films using hyperthermal O-atom collision in LEO space environmen (2014)
  • Author(s): Kumiko Yokota, Yuki Yamazaki, Akimine Hatsuda, Daiki Watanabe, Masahito Tagawa
  • Organizer: 30th European Conference on Surface Science
  • Place of Presentation: Antalya, Turkey
  • Year and Date: 2014-08-31 – 2014-09-05
• [Presentation] Atomic oxygen beam irradiation effect on the Si-doped DLC film (2014)
  • Author(s): Kengo Kidena, Minami Endo, Ryo Imai, Masahito Niibe, Kumiko Yokota, Masahito Tagawa, Kazuhiro Kanda,
  • Organizer: The 15th IUMRS-International Conference in Asia (IUMRS-ICA 2014)
  • Place of Presentation: Fukuoka, Japan
  • Year and Date: 2014-08-24 – 2014-08-30
• [Presentation] Ground-based neutral gas environment simulation related to material degradation phenomena in the orbital altitudes of 200-500 km (2014)
  • Author(s): Masahito Tagawa, Takashi Oyabu, Junki Ohira, Daiki Watanabe, Yuki Yamasaki, Kumiko Yokota
  • Organizer: COSPAR Scientific Assembly
  • Place of Presentation: Moscow, Russia
  • Year and Date: 2014-08-02 – 2014-08-10
  • Invited
• [Presentation] Extreme ultraviolet emission from laser-induced plasma relevance to neutral gas environment simulation in LEO (2014)
  • Author(s): Masahito Tagawa, Junki Ohira, Daiki Watanabe, Yugo Kimoto, Hiroaki Nishimura, Kumiko Yokota
  • Organizer: COSPAR Scientific Assembly
  • Place of Presentation: Moscow, Russia
  • Year and Date: 2014-08-02 – 2014-08-10
• [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
• [Book] 宇宙機の熱設計 (2014)
  • Author(s): 金森康郎、増本博光監修、大西晃、杉田寛之、田川雅人編集
  • Total Pages: 318
  • Publisher: 名古屋大学出版会
• [Remarks] 神戸大学大学院工学研究科における宇宙環境研究のページ
  • URL: http://www.space-environmental-effect.jp/index.html