九州大学大学院 総合理工学府 総合理工学専攻 / 九州大学 工学部 融合基礎工学科

先進宇宙ロケット工学研究室（山本研究室）

先進宇宙ロケット工学研究室（山本研究室）

English

• Kento Koba, Taichi Morita, Hideki Nakashima, Shinichi Namba, Yoshitaka Mori, Toshiyuki Ise, Shunsuke Murata, Atsushi Sunahara, Yoshihiro Kajimura, Masafumi Edamoto, Nathan Shilling, Naoji Yamamoto, "Measurement of the impulse from a magnetic nozzle for the model experiment of laser fusion rocket", High Energy Density Physics, Vol 56 101213 (2025).10.1016/j.hedp.2025.101213
• Naoki Katsura, Tomihiko Kojima, Naoji Yamamoto, Taichi Morita, "Investigation of the Electron Detachment via Electric Field Fluctuation in a Magnetic Thrust Chamber for Laser Fusion Rocket," Journal of Evolving Space Activities Volume 3, 231 (2025).https://doi.org/10.57350/jesa.231
• KOEDA Aika, CHO Shinatora, YAMASHITA Yuya, KOSUGA Yusuke, WATANABE Hiroki, YAMAMOTO Naoji, "Numerical Simulation of Plasma Perturbations and Electron Transport in Hall Thrusters", TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES、Volume 68 Issue 2,pp114-121 (2025).https://doi.org/10.2322/tjsass.68.114

• Tomoya Ogawa, Kento Koba, Naoji Yamamoto, Taichi Morita, "Measurement of Micro Impulse from Pulsed-Magnetic Nozzle by Thrust Stand with Integrated Discharge Circuit", Vol.32 No.1 June 2024.https://doi.org/10.34377/aps.32.1_3
• Yamamoto N. and Yalin A. P. "Portable Thomson scattering system for temporally resolved plasma measurements under low density conditions," Review of Scientific Instruments, 95, 033502 (2024).https://doi.org/10.1063/5.0180534
• Kansei ITO, Naoji YAMAMOTO, Kai MORINO, "Sequential Prediction of Hall Thruster Performance Using Echo State Network Models", TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, Volume 67 Issue 1(2024)https://doi.org/10.2322/tjsass.67.1

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• Taiki INATOMI, Taichi MORITA, Naoji YAMAMOTO, Hideki NAKASHIMA,Tomihiko KOJIMA, Eisuke KURAMOTO, Masaki IKEBE, Atsushi SUNAHARA, Shinichi NAMBA, Yoshitaka MORI, Toshiyuki ISE, Kazuhiro YAGI, Tomoyuki JHOZAKI, Quantitative Evaluation of the Impulse-bit Generated in a Magnetic Thrust Chamber, Journal of Evolving Space Activities, 10.57350/jesa.4, 1 (2023).https://doi.org/10.57350/jesa.4
• Kansei ITO, Naoji YAMAMOTO, Kai MORINO, Prediction of Discharge Current Using Reservoir Computing in Electric Propulsion, Journal of Evolving Space Activities, 10.57350/jesa.3, 1 (2023).https://confit.atlas.jp/guide/event/ists2021/subject/B-2-05/tables

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• T. Morita, T. Kojima, S. Matsuo, S. Matsukiyo, S. Isayama, R. Yamazaki, S. J. Tanaka, K. Aihara, Y. Sato, J. Shiota, Y. Pan, K. Tomita, T. Takezaki, Y. Kuramitsu, K. Sakai, S. Egashira, H. Ishihara, O. Kuramoto, Y. Matsumoto, K. Maeda, and Y. Sakawa, "Detection of current-sheet and bipolar ion flows in a self-generated antiparallel magnetic field of laser-produced plasmas for magnetic reconnection research", PHYSICAL REVIEW E 106, 055207 (2022).https://doi.org/10.1103/PhysRevE.106.055207
• S. Matsukiyo, R. Yamazaki, T. Morita, K. Tomita, Y. Kuramitsu, T. Sano, S. J. Tanaka, T. Takezaki, S. Isayama, T. Higuchi, H. Murakami, Y. Horie, N. Katsuki, R. Hatsuyama, M. Edamoto, H. Nishioka, M. Takagi, T. Kojima, S. Tomita, N. Ishizaka, S. Kakuchi, S. Sei, K. Sugiyama, K. Aihara, S. Kambayashi, M. Ota, S. Egashira, T. Izumi, T. Minami, Y. Nakagawa, K. Sakai, M. Iwamoto, N. Ozaki, Y. Sakawa, "High-power laser experiment on developing supercritical shock propagating in homogeneously magnetized plasma of ambient gas origin", PHYSICAL REVIEW E 106, 025205 (2022).https://doi.org/10.1103/PhysRevE.106.025205

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• Masato KAWAZU, Naoji YAMAMOTO, Masatoshi CHONO, Hirotaka FUCHIGAMI, Taichi MORITA, "Prediction of Thruster Performance in Hall Thrusters Using Neural Network with Auto Encoder" , TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES 19(5), 760-765 (2021).https://doi.org/10.2322/tastj.19.760
• Masatoshi Chono, Naoji Yamamoto, Ryudo TSUKIZAKI, Takato MORISHITA, Kenichi KUBOTA, Shinatra CHO, Kiyoshi KINEFUCHI, Toru TAKAHASHI, "Performance of a Miniature Hall Thruster and an In-house PPU" , TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES 64(3), 189-192 (2021).https://doi.org/10.2322/tjsass.64.189
• Naoya Kuwabara, Masatoshi Chono, Taichi MORITA, Naoji Yamamoto "Anomalous Electron Transport in Hall Thrusters: Electric Field Fluctuation Measurement" , TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES 19(1), 81-86 (2021).https://doi.org/10.2322/tastj.19.81
• Atsumu INOUE, Naoji YAMAMOTO, Yusuke NAKAMURA, Masakatsu NAKANO, "Optimization of Ion Thruster Grids Using JIEDI Code with Genetic Algorithm" , TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES 19(1), 75-80 (2021).https://doi.org/10.2322/tastj.19.75
• Naoya Kuwabara, Masatoshi Chono, Naoji Yamamoto, Daisuke Kuwahara, "Electron Density Measurement Inside a Hall Thruster Using Microwave Interferometry" , PROPULSION AND POWER 37(3), 491-494 (2021).https://doi.org/10.2514/1.B38163
• Kenshin NAGAMINE, Haruki TAKEGAHARA, Akira KAKAMI, Naoji YAMAMOTO, Taichiro TAMIDA, "Application of a Pulsating Voltage Drive to an Anode-Layer-Type Hall Thruster" , TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES 19(5), 621-628 (2021).https://doi.org/10.2322/tastj.19.621
• 井上 純武, 枝澤 友也, 山本 直嗣, 中野 正勝, "遺伝アルゴリズムによるイオンエンジングリッド設計および探索過程の可視化" , 航空宇宙技術 20, 114-117 (2021).https://doi.org/10.2322/astj.20.114
• 中野 正勝, 山本 直嗣, 大川 恭志, 船木 一幸, "昇華性物質を推進剤とするイオンエンジンの性能評価" , 宇宙太陽発電 6 , 1-4 (2021).https://doi.org/10.24662/sspss.6.0_1
• 木下 順平, 白木 僚, 山本 直嗣, 大川 恭志, 船木 一幸, 中野 正勝, "イオンエンジンのPWM制御時におけるOFF時のリーク電流低減に関する研究" , プラズマ応用科学 29(1), 29-34 (2021).https://doi.org/10.34377/aps.29.1_29
• 河津 誠人, 淵上 大貴, 山本 直嗣, 民田 太一郎, "プルーム画像を用いたニューラルネットワークによる ホールスラスタの放電電流予測" , 航空宇宙技術 20, 47-51 (2021).https://doi.org/10.2322/astj.20.47
• 木下 順平, 白木 僚, 山本 直嗣, 中野 正勝, 大川 恭志, 船木 一幸, "イオンエンジンにおける複数台の電界放出型電子が中和性能に及ぼす影響" , 日本航空宇宙学会論文集 69, 215-218 (2021).https://doi.org/10.2322/jjsass.69.215

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• 山本直嗣, "ホールスラスタ (<連載>えあろすぺーすABC)" , 日本航空宇宙学会誌 68 , 120 (2020). https://doi.org/10.14822/kjsass.68.4_120
• Toru Yamamura, Masafumi Edamoto, Tomihiko Kojima, Taichi Morita, Naoji Yamamoto, Atsushi Sunahara, Tomoyuki Johzaki, Hideki Nakashima , "Numerical analysis on a conical shaped target for laser fusion rocket" , High Energy Density Physics 37 , 100894 (2020). https://doi.org/10.1016/j.hedp.2020.100894
• T. Morita , K. Tomita, K. Sakai, M. Takagi, K. Aihara, M. Edamoto, S. Egashira, T. Higuchi, N. Ishizaka, T. Izumi, S. Kakuchi, T. Kojima , Y. Kuramitsu, S. Matsukiyo, Y. Nakagawa, T. Minami, H. Murakami, Y. Nishioka , M. Ota, T. Sano, S. Sei, K. Sugiyama, S.J. Tanaka, R. Yamazaki, and Y. Sakawa, "Local plasma parameter measurements in colliding laser-produced plasmas for studying magnetic reconnection" , High Energy Density Physics 36 , 100754 (2020). https://doi.org/10.1016/j.hedp.2020.100754

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• Naruya Hiroike and Naoji Yamamoto, "Investigation of Physical Phenomena inside Microwave Discharge Neutralizer Using Numerical Analysis" , Frontier of Applied Plasma Technology 12 , 7-12 (2019).
• T Morita , K Nagashima, M Edamoto, K Tomita, T Sano, Y Itadani, R Kumar, M Ota, S Egashira, R Yamazaki, SJ Tanaka, S Tomita, S Tomiya, H Toda, I Miyata, S Kakuchi, S Sei, N Ishizaka, S Matsukiyo, Y Kuramitsu, Y Ohira, M Hoshino, and Y Sakawa, "Anomalous plasma acceleration in colliding high-power laser-produced plasmas" , Physics of Plasmas 26, 090702 (2019). https://doi.org/10.1063/1.5100197
• 森田太智 , 枝本雅史, 山本直嗣, 中島秀紀, "レーザー核融合ロケットの原理実証研究" , レーザー研究 47, 548-554 (2019). https://ci.nii.ac.jp/naid/40022025748
• Naoji Yamamoto , Taichi Morita , Yasushi Ohkawa, Masakatsu Nakano and Ikkoh Funak, "Ion Thruster Operation with Carbon Nanotube Field Emission Cathode" , Journal of Propulsion and Power 35 , 490-493 (2019). https://doi.org/10.2514/1.B37214

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• Masafumi Edamoto, Taichi Morita, Naoya Saito, Yutaro Itadani, Satoshi Miura, Shinsuke Fujioka, Hideki Nakashima, and Naoji Yamamoto, "Portable and noise-tolerant magnetic field generation system" , Review of Scientific Instruments 89, 094706 (2018). https://doi.org/10.1063/1.5049217
• Naoya Saito, Naoji Yamamoto, Taichi Morita, Masafumi Edamoto, Hideki Nakashima, Shinsuke Fujioka, Akifumi Yogo, Hiroaki Nishimura, Atsushi Sunahara, Yoshitaka Mori, Tomoyuki Johzaki, "Experimental demonstration of ion extraction from magnetic thrust chamber for laser fusion rocket" , Japanese Journal of Applied Physics 57, 050303 (2018). https://doi.org/10.7567/JJAP.57.050303
• Yusuke Egawa, Shoma Hamada, and Hisahiro Einaga, "Contribution of catalytic performance of CeO2 in nonthermal plasma chemical reaction" , Evergreen 5, 34-37 (2018). https://doi.org/10.5109/1957498
• A. Yousefian and N. Yamamoto, "3D finite difference time domain simulation of microwave propagation in a coaxial cable" , Evergreen 5, 1-11 (2018). https://doi.org/10.5109/1957495
• Yutaro Itadani, Taichi Morita, Naoya Saito, Masahumi Edamoto, Tomihiko Kojima, Mariko Takagi, Sinsuke Fujioka, Akihumi Yogo, Hiroaki Nishimura, Hideo Nagatomo, Atushi Sunahara, Yoshitaka Mori, Tomoyuki Johzaki, Hideki Nakashima, Naoji Yamamoto, "Thomson scattering measurement of laser-produced plasma in a magnetic thrust chamber" , Plasma and Fusion Research 13, 1306016 (2018). https://doi.org/10.1585/PFR.13.1306016
• Ippei Takesue, Yutaro Kawahara, Kensuke Iijima, Kouichi Ushio, Naoji Yamamoto, Taichi Morita, Masakatsu Nakano, Yasushi Ohkawa, Ikkoh Funaki, "Development of Variable Time-Averaged Thrust System by Controlling Duty Ratio of Ion Beam Extraction in Ion Thrusters" , Transactions of The Japan Society for Aeronautical and Space Sciences, Aerospace Technology Japan 16, 388-391 (2018). https://doi.org/10.2322/tastj.16.388

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• I. Dey, N. Yamamoto, and H. Nakashima, "Effect of orifice diameter on the performance of a miniature microwave neutralizer" , Transactions of the Japan Society for Aeronautical and Space Sciences 60, 259-262 (2017). https://doi.org/10.2322/tjsass.60.259
• Masataka Iwamoto, Naoji Yamamoto, Taichi Morita, Hideki Nakashima, Kentaro Tomita, Kiichiro Uchino, "Rayleigh Scattering Measurement of Neutral Atom Number Density Downstream of a Hall Thruster under Cold Flow Conditions" , Transactions of the Japan Society for Aeronautical and Space Sciences 60, 327-330 (2017). https://doi.org/10.2322/tjsass.60.327
• 長野公勇, 森田太智, 山本直嗣, 窪田健一, 藤井剛, 杵淵紀世志, "200W級ホールスラスタの開発" , Applied Plasma Science 25, 85-88 (2017). https://doi.org/10.34377/aps.25.2_85
• Taichi Morita, Masafumi Edamoto, Satoshi Miura, Atsushi Sunahara, Naoya Saito, Yutaro Itadani, Tomihiko Kojima, Yoshitaka Mori, Tomoyuki Johzaki, Yoshihiro Kajimura, Shinsuke Fujioka, Akifumi Yogo, Hiroaki Nishimura, Hideki Nakashima, and Naoji Yamamoto, "Control of unsteady laser-produced plasma-flow with a multiple-coil magnetic nozzle" , Scientific Reports 7, 8910 (2017). https://doi.org/10.1038/s41598-017-09273-3
• T Morita, Y Sakawa, Y Kuramitsu, S Dono, H Aoki, H Tanji, JN Waugh, CD Gregory, M Koenig, NC Woolsey, H Takabe, "Characterization of electrostatic shock in laser-produced optically-thin plasma flows using optical diagnostics" , Physics of Plasmas 24, 072701 (2017). https://doi.org/10.1063/1.4990058
• Naoji Yamamoto, Kohei Takase, Yuya Hirano, Kimiya Komurasaki, Akira Kakami, Ryudo Tsukizaki, Satoshi Hosoda, Hitoshi Kuninaka, Shigeru Yokota, "Thrust Performance in a 5 kW Class Anode Layer Type Hall Thruster" , Transactions of the Japan Society for Aeronautical and Space Sciences 14, Pb_183-Pb_187 (2017). http://doi.org/10.2322/tastj.14.Pb_183

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• Koichi Ushio, Yuji Toyoda, Naoji Yamamoto, Taichi Morita, Hideki Nakashima, "Development of a Miniature Microwave Discharge Thruster" , Transactions of the Japan Society for Aeronautical and Space Sciences 14, pb_141-pb_147 (2016). http://doi.org/10.2322/tastj.14.Pb_141
• A. Yamaguchi, A. Kibe, N. Yamamoto, T. Morita, H. Nakashima and M. Nakano,　Erosion Rate Measurement in Ion Thrusters Using Cavity Ring-Down Spectroscopy Technique, Journal of Instrumentation, Vol. 11, (2016) C01079. http://dx.doi.org/10.1088/1748-0221/11/01/C01079
• R. Kawashima, T. Morita, N. Yamamoto, N. Saito, S. Fujioka, H. Nishimura, H. Matsukuma, A. Sunahara, Y. Mori, T. Johzaki and H. Nakashima, The Measurement of Plasma Structure in a Magnetic Thrust Chamber, Plasma and Fusion Research, Vol. 11, (2016) 3406012. http://dx.doi.org/10.1585/pfr.11.3406012
• 淵上太貴 、森田太智,山本直嗣, "ホールスラスタにおけるニューラルネットワークを用いた推力の 再構成" , プラズマ応用科学 24, 84-88 (2016). https://doi.org/10.1088/1742-6596/717/1/012071
• T. Morita, N. L. Kugland, W. Wan, R. Crowston, R. P. Drake, F. Fiuza, G. Gregori, C. Huntington, T. Ishikawa, M. Koenig, C. Kuranz, M. C. Levy, D. Martinez, J. Meinecke, F. Miniati, C. D. Murphy, A. Pelka, C. Plechaty, R. Presura, N. Quiros, B. A. Remington, B. Reville, J. S. Ross, D. D. Ryutov, Y. Sakawa, L. Steele, H. Takabe, Y. Yamaura, N. Woolsey, H.-S. Park, "Proton imaging of an electrostatic field structure formed in laser–produced counter–streaming plasmas" , Journal of Physics: Conference Series 688, 012071 (2016). https://doi.org/10.1088/1742-6596/688/1/012071
• T Morita, N Yamamoto, R Kawashima, N Saito, M Edamoto, S Fujioka, Y Itadani, T Johzaki, S Miura, Y Mori, H Nishimura, A Sunahara, A Yogo, H Nakashima, "Plasma structure and energy dependence in a magnetic thrust chamber system" , Journal of Physics: Conference Series 717, 012071 (2016). https://doi.org/10.1088/1742-6596/717/1/012071
• 森田太智, "講座 はじめてみよう！高エネルギー密度プラズマ計測 レーザー宇宙プラズマ計測" , Journal of Plasma Fusion Research 92, 297-303 (2016). http://www.jspf.or.jp/Journal/PDF_JSPF/jspf2016_04/jspf2016_04-297.pdf
• 森田太智, 坂和洋一, 蔵満康浩, 高部英明, "小特集 宇宙と実験室の無衝突衝撃波－粒子加速と磁場生成・増幅－ 高出力レーザーを用いた無衝突衝撃波と磁場生成・増幅実験, 静電無衝突衝撃波生成実験" , Journal of Plasma Fusion Research 92, 98-101 (2016). http://www.jspf.or.jp/Journal/PDF_JSPF/jspf2016_02/jspf2016_02-98.pdf
• N. Yamamoto, Y. Maeda, H. Nakashima, H. Watanabe, I. Funaki, Investigation of Erosion and Deposition in a Microwave Discharge Neutralizer, Transactions of the Japan Society for Aeronautical and Space Sciences, Vol.59, No.2, (2016) pp.100-103. http://doi.org/10.2322/tjsass.59.100

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• N. Saito, H. Tominaga, R. Kawashima, T.Morita, N. Yamamoto, H. Nakashima, Acceleration of Miniature Targets by Kilo-Tesla Magnetic Field, Transactions of the Japan Society for Aeronautical and Space Sciences, Aerospace Technology Japan, Vol.13(2015) pp.17-21. http://doi.org/10.2322/tastj.13.17
• T. Tamida, H. Osuga, N. Yamamoto, H. Takegahara,, J. Aoyagi, K. Kuriki, Performance Improvement of Hall Thrusters Using a Pulse-Synchronous Driver System, Journal of Propulsion and Power, Vol. 31, No. 3 (2015), pp. 956-961. doi: 10.2514/1.B35273
• K. Tanaka, R. Kawashima, N. Yamamoto, T. Morita, H. Nakashima, Diagnostics of Fireball by Discharge on the Surface of an Electrolyte Floating Particulates, 2. 5, Frontier of Applied Plasma Technology, Vol. 8,1 (2015), pp.47-48.
• N. Yamamoto, H. Takegahara, J. Aoyagi, K. Kuriki, T. Tamida, H. Osuga, Development of a novel power processing unit for Hall thrusters, IEEE Transactions on Plasma Science, Vol. 41,1 (2015), pp.158-164. 10.1109/TPS.2014.2370066

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• I. Dey, Y. Toyoda, N. Yamamoto, H. Nakashima, Experimental investigation of microwave interaction with magnetoplasma in miniature multipolar configuration using impedance measurements, Physics of Plasmas, Vol. 21,9(2014), 093502. http://dx.doi.org/10.1063/1.4894476
• Naoji YAMAMOTO, Yoshiaki HIRAOKA, Hideki NAKASHIMA, Development of a Miniature Microwave Discharge Neutralizer for Miniature Ion Engines, Vol. 62, 4 (2014), pp.123-128. http://doi.org/10.2322/jjsass.62.123
• B. C. Lee, W. Huang, L. Tao, N. Yamamoto, A. D. Gallimore, A. P. Yalin, A cavity ring-down spectroscopy sensor for real-time Hall thruster erosion measurements,　Review of Scientific Instruments,Vol.85 (2014), 053111. doi: 10.1063/1.4879135.
• I. Dey, Y. Toyoda, K. Hirano, N. Yamamoto, and H. Nakashima, Development of a Low Power Multipole Confined Microwave Plasma Ion Thruster, Transactions of the Japan Society for Aeronautical and Space Sciences, Aerospace Technology Japan,Vol.12, ists29,(2014), Pb_7-Pb_12. http://doi.org/10.2322/tastj.12.Pb_7
• A. Maeno, T. Hinaga, N. Yamamoto, A. Sunahara, S. Fujioka, and H. Nakashima, Effect of Magnetic Field Strength on a Magnetic Thrust Chamber System, Journal of Propulsion and Power, Vol.30,1,(2014), pp.54-61. doi: 10.2514/1.B34911

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• 中村祐輔, 山本直嗣, 中島秀紀, 中野正勝,イオン加速グリッド損耗解析におけるメッシュサイズおよび時間幅の検討,プラズマ応用科学,Vol.20, 1, (2013),pp.33-38.
• K. Hirata, K. Furumoto, N. Yamamoto, T. Tanabe, Application of pulsed laser irradiation for removal of hydrogen retained in tungsten, Journal of Nuclear Materials, Vol. 443, Issue 1-3 (2013), pp. 298-301
• K. Furumoto, T. Tanabe, N. Yamamoto, T. Daio, S. Matsumura, K. Yasuda, Development of novel optical fiber system for cathodoluminescence detection in high voltage transmission electron microscope, Materials Transactions, Vol. 54, Issue 5, (2013), Pages 854-856.
• A. Maeno, N. Yamamoto, S. Fujioka, Y. Mori, A. Sunahara, T. Johzaki, and H. Nakashima, Analysis of Laser Wavelength and Energy Dependences of the Impulse in a Magnetic Thrust Chamber System for a Laser Fusion Rocket, Transactions of the Japan Society for Aeronautical and Space Sciences,Vol.56,3 (2013), pp.170-172.

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