Koizumi Hiroyuki

Affiliation and department：
Job title：准教授
Other affiliations (1)：

The University of Tokyo The Graduate School of Engineering Department of Aeronautics and Astronautics

Homepage URL (1)： http://www.al.t.u-tokyo.ac.jp/koizumi/html/htdocs/

Research field (1)： Aerospace engineering

Research keywords (6)：イオンエンジン , 超小型衛星 , Space Propulsion , plasma , microsatellite , Electric Propulsion

Research theme for competitive and other funds (18)：

2021 - 2025 水-金属ハイブリッド推進機内の凝縮性粒子の発生機構解明と推進/環境性能の最適化
2020 - 2024 Digital Twin Creation of High-Density Ion Thruster with Electron Anomalous Transport Control
2021 - 2023 周方向電場印加によるホール効果を利用した大電力無電極推進機の新たな可能性
2021 - 2022 持続可能な宇宙利用開発のための小型「水」推進系におけるミッションスタディ
2016 - 2021 超小型衛星の多目的実用化時代に向けたオールラウンド超小型宇宙推進系の実現

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Papers (207)：

Lucas-Brian Christen, Masataka Watanabe, Hiroto Yamakami, Hokuto Sekine, Kimiya Komurasaki, Hiroyuki Koizumi. Hydrogen diffusion in liquid and boiling alumina by laser ablation towards a carbon-free aluminum production. Optics & Laser Technology. 2025. 181. 111935-111935
Hokuto Sekine, Hiroyuki Koizumi, Kimiya Komurasaki. Observation of strong in-plane perpendicular electric field in a radio frequency plasma with a time-varying magnetic nozzle. Physics of Plasmas. 2024. 31. 7
Keita Nishii, Hiroyuki Koizumi. Temperature measurement on condensed combustion products of magnesium with oxygen and water vapor. Combustion and Flame. 2024. 262. 113362-113362
Hokuto Sekine, Ahmed Diallo, Shota Abe, Yevgeny Raitses, Hiroyuki Koizumi. Application of helium line intensity ratio spectroscopy to xenon plasma in E×B penning discharge. Plasma Sources Science and Technology. 2024
Hokuto SEKINE, Yasuho ATAKA, Isamu MORIAI, Aoma FUJIMORI, Mariko AKIYAMA, Masaya MUROHARA, Hiroyuki KOIZUMI, Kota KAKIHARA, Kento SHIRASU, Daigo TAKASAKI, et al. On-orbit Performance Evaluation of AQUARIUS: a Water Resistojet Propulsion System during Initial Flight Operation of a 6U CubeSat EQUULEUS. TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES. 2024. 67. 5. 274-284

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MISC (112)：

渡邊真隆, CHRISTEN Lucas-Brian, 田中直輝, 小紫公也, 関根北斗, 小泉宏之. Pore Formation and Aluminum Precipitation during Laser Alumina Reduction in Hydrogen Atmosphere. プラズマ応用科学. 2024. 32. 1
秋山茉莉子, 西井啓太, 小泉宏之, 小紫公也. Acquisition of Input power for Fuel Ignition in a Micropropulsion System using Magnesium and Water. 宇宙科学技術連合講演会講演集(CD-ROM). 2021. 65th
IZAWA Sota, NISHII Keita, KIKUCHI Kosei, KOIZUMI Hiroyuki, KOMURASAKI Kimiya. 電子ビーム励起によるマイクロノズル下流における中性粒子の相対密度分布測定. 令和元年度宇宙輸送シンポジウム: 講演集録 = Proceedings of Space Transportation Symposium FY2019. 2020
MANNAMI Yoshihito, NISHII Keita, AKIYAMA Mariko, MUROHARA Masaya, KOIZUMI Hiroyuki, KOMURASAKI Kimiya. Experimental study on combustion characteristics of an aluminum wire in water vapor under low-pressure environments. 令和元年度宇宙輸送シンポジウム: 講演集録 = Proceedings of Space Transportation Symposium FY2019. 2020
万浪義史, 西井啓太, 秋山茉莉子, 室原昌弥, 小泉宏之, 小紫公也. Experimental study on the onset of aluminum wire combustion in water vapor under low-pressure environments. 宇宙科学技術連合講演会講演集(CD-ROM). 2020. 64th

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Books (1)：

Education (2)：

2000 - 2003 The University of Tokyo The Graduate School of Engineering Department of Aeronautics and Astronautics
1996 - 2000 Keio University Faculty of Science and Technology Department of Mechanical Engineering

Professional career (1)：

Work history (5)：

2015/04 - 現在 The University of Tokyo Graduate School of Frontier Sciences, Department of Advanced Energy, Department of Advanced Energy
2011/10 - 2014/03 The University of Tokyo Research Center for Advanced Science and Technology Associate Professor
2011/04 - 2011/09 The University of Tokyo The Graduate School of Engineering Department of Aeronautics and Astronautics Associate Professor
2007/04 - 2010/03 Japan Aerospace Exploration Agency Institute of Space and Astronautical Science Assistant Professor
2003/07 - 2006/03 The University of Tokyo The Graduate School of Engineering Department of Aeronautics and Astronautics Research Assistant

Association Membership(s) (1)：

日本航空宇宙学会

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