Kenichi Nagaoka, Haruhisa Nakano, Taiga Hamajima, Ryoya Nakamoto, Katsuyoshi Tsumori, Masaki Osakabe, Masashi Kisaki, Kenji Miyamoto, Kazunori Takahashi & Ursel Fantz, "Response of negative ion beamlet width and axis deflection to RF field in beam extraction region", Scientific Reports, 15, 1494 (2025).
Yung-An Chan, Kazunori Takahashi, Martin Grabe, Christopher Geile, "Development and characterization of the ALFVEN thruster", Journal of Electric Propulsion, 4, 18 (2025).
Kazunori Takahashi, Christine Charles, and Rod W. Boswell, "Detection of high energy electrons in a cusp-field magnetic nozzle radio frequency plasma thruster", AIP Advances, 15, 075202 (2025).
Kazunori Takahashi, "Cusp-type bi-directional radiofrequency plasma thruster toward contactless active space debris removal", Scientific Reports, 15, 30589 (2025).
Kazunori Takahashi, "Modeling a thrust imparted by a highly ionized magnetic nozzle rf plasma thruster", Journal of Plasma Physics, 90, 975900201 (2024).
Soya Sumikawa and Kazunori Takahashi, "Measurement of a force imparted to a magnetic nozzle by electron diamagnetism", Physics of Plasmas, 31, 034501 (2024).
Kazunori Takahashi and Soya Sumikawa, "Experimental investigation on magnetic field strength providing thrust saturation in a magnetic nozzle radiofrequency plasma thruster", Plasma Physics and Controlled Fusion, 66, 015012 (2024).
Yugo Nakahama and Kazunori Takahashi, "Effect of a permanent-magnets-induced cusp field on a magnetic nozzle radiofrequency plasma thruster", AIP Advances, 14, 015059 (2024).
Sota Shimizu and Kazunori Takahashi, ”Temporally resolved measurement of a force induced by a pulsed water-fueled magnetron sputtering source", Journal of Plasma Physics, 90, 975900205 (2024).
Sota Shimizu and Kazunori Takahashi, "Magnetron sputtering thruster operated with a compact gas feeding system using double pulsed valves", Acta Astronautica, 221, 79 (2024).
Kodai Kikuchi and Kazunori Takahashi, "Characterization of electron extraction from a 40.68 MHz radiofrequency inductive plasma source", Japanese Journal of Applied Physics, 63, 08SP03 (2024).
Antonella Caldarelli, Félicien Filleul, Kazunori Takahashi, Rod W Boswell, Christine Charles, John E Cater, and Nicholas Rattenbury, "Detection of a low-frequency ion instability in a magnetic nozzle", Plasma Sources Science and Technology, 33, 085010 (2024).
Yugo Nakahama and Kazunori Takahashi, "Effect of gas injection pattern on magnetically expanding rf plasma source", Japanese Journal of Applied Physics, 63, 09SP01 (2024).
Kazunori Takahashi, Hiroki Watanabe, Yugo Nakahama, and Kodai Kikuchi, "Hall thruster ion acceleration neutralized by a radiofrequency inductively coupled plasma", Journal of Electric Propulsion, 3, 18 (2024).
Lei Chang; Rod Boswell; Earl Scime; Shunjiro Shinohara; Kazunori Takahashi; Saikat Thakur; Félicien Filleul; Antonella Caldarelli; Shogo Isayama; Yi Yu; Min Xu; Haibao Zhang; Tianyuan Huang; Mingyang Wu; Jintao Wu; Bohan Xia; Lingfeng Lu; Aiping Sun; Dan Du; Zuyu Zhang; Ruixin Yuan; Dong Jing; Ying Xia; Yiwei Zhang; Xianshu Wu; Zhenyu Yang; Yuzhe Sun, "Research progress and remarks on helicon plasma: a report on the Second Helicon Plasma Physics and Applications Workshop", Reviews of Modern Plasma Physics, 8, 32 (2024)
Kazunori Takahashi, Christine Charles, Rod W Boswell, "Enhanced diamagnetism by energetic tail electrons in a magnetized plasma", Physical Review Research, 5, L022029 (2023).
Kazuma Emoto, Kazunori Takahashi, and Yoshinori Takao, "Density profile transition and high-energy electron transport in a magnetically expanding radio frequency plasma", Physics of Plasmas, 30, 013509 (2023).
June Young Kim, Kyoung-Jae Chung, Kazunori Takahashi, Mario Merino, and Eduardo Ahedo, "Kinetic electron cooling in magnetic nozzles: experiments and modeling", Plasma Sources Science and Technology, 32, 073001 (2023).
Sota Shimizu and Kazunori Takahashi, "Assessment of a thrust induced by a water-fueled magnetron sputtering source", Acta Astronautica, 204, 370 (2023).
Kazunori TAKAHASHI, Christine CHARLES, Rod W BOSWELL, Kazuma EMOTO, Yoshinori TAKAO, Shiro HARA, Haruhisa NAKANO, Kenichi NAGAOKA, and Katsuyoshi TSUMORI, "Magnetic nozzle radiofrequency plasma systems for space propulsion, industry, and fusion plasmas", Plasma and Fusion Research, 18, 2501050 (2023).
Soya Sumikawa and Kazunori Takahashi, "Radial profile control of a magnetically expanding plasma and its impact on a plasma thruster", Japanese Journal of Applied Physics, 62, SL1001 (2023).
Thanatith Nakul, Yugo Nakahama, and Kazunori Takahashi, "Effect of rf driving frequency on peripheral high energy electrons in a magnetically expanding plasma reactor", AIP Advances, 13, 085324 (2023).
Kazunori Takahashi and Yume Teranishi, "Characterization of a radiofrequency linear plasma device in uniform and convergent magnetic fields", Plasma Sources Science and Technology, 32, 125004 (2023).
Kazunori Takahashi, "Comparison of vacuum-immersed helicon thrusters terminated by upstream magnetic and physical walls", Journal of Physics D: Applied Physics, 56, 475207 (2023).
Felicien Filleul, Antonella Caldarelli, Kazunori Takahashi, Rod Boswell, Christine Charles, John Cater, and Nicholas Rattenbury, "Helicon waves in a converging-diverging magnetoplasma", Plasma Sources Science and Technology, 32, 115015 (2023).
高橋和貴,古川武留, "次世代電気推進機(磁気ノズル型スラスタ、回転磁場による追加速)", プラズマ・核融合学会誌, 99, 449 (2023).
Ryoji Imai and Kazunori Takahashi, "Deflections of dynamic momentum flux and electron diamagnetic thrust in a magnetically steered rf plasma thruster", Journal of Physics D: Applied Physics, 55, 135201 (2022).
Kazunori Takahashi and Ryoji Imai, "Two-dimensional deflection of a plasma plume exhausted from a magnetically steered radiofrequency plasma thruster", Physics of Plasmas, 29, 054501 (2022).
Thanatith Nakul and Kazunori Takahashi, "Characterization of a 2 MHz radiofrequency-driven magnetically expanding plasma source", AIP Advances, 12, 095118 (2022).
Kazunori Takahashi, "Thirty percent conversion efficiency from radiofrequency power to thrust energy in a magnetic nozzle plasma thruster", Scientific Reports, 12, 18618 (2022).
Kazunori Takahashi, Christine Charles, and Rod W. Boswell, "Wave-driven electron inward transport in a magnetic nozzle", Scientific Reports, 12, 20137 (2022).
Kazunori Takahashi, "Magnetic nozzle radiofrequency plasma thruster approaching twenty percent thruster efficiency", Scientific Reports, 11, 2768 (2021).
Kazunori Takahashi, Ryoji Imai, and Kengo Hanaoka, "Automatically controlled frequency-tunable rf plasma thruster: Ion beam and thrust measurements", Frontiers in Physics, 9, 639010 (2021).
Kengo Hanaoka and Kazunori Takahashi, "Vertical silicon etching by using an automatically- and fast-controlled frequency tunable rf plasma source", AIP Advances, 11, 025013 (2021).
Kazunori Takahashi and Hidemasa Miura, "Direct measurement of thrust induced by a magnetron sputtering source", Applied Physics Letters, 118, 154101 (2021).
Ryoji Imai and Kazunori Takahashi, "Demonstrating a magnetic steering of the thrust imparted by the magnetic nozzle radiofrequency plasma thruster", 118, 264102 (2021).
Kazuma Emoto, Kazunori Takahashi, and Yoshinori Takao, "Numerical investigation of internal plasma currents in a magnetic nozzle", Physics of Plasmas, 28, 093506 (2021).
Kazuma Emoto, Kazunori Takahashi, and Yoshinori Takao, "Axial momentum gains of ions and electrons in magnetic nozzle acceleration", Plasma Sources Science and Technology, 30, 115016 (2021).
Kazuma Emoto, Kazunori Takahashi, and Yoshinori Takao, "Vector resolved energy fluxes and collisional energy losses in magnetic nozzle radiofrequency plasma thrusters", Frontiers in Physics, 9, 779204 (2021).
Kazunori Takahashi and Hidemasa Miura, "Comparison of thrusts imparted by a magnetron sputtering source operated in DC and high power impulse modes", AIP Advances, 11, 105115 (2021).
Kazunori Takahashi, Christine Charles, Rod W Boswell, and Akira Ando, "Thermodynamic analogy for electrons interacting with a magnetic nozzle", Physical Review Letters, 125, 165001 (2020).
Kazunori Takahashi, Christine Charles, Rod W. Boswell, Yoshinori Takao, Amnon Fruchtman, Jaume Navarro-Cavallé, Mario Merino, "Commentary: On helicon thrusters: Will they ever fly? ", Frontiers in Physics, 8, 00277 (2020).
Kazunori Takahashi, Kengo Hanaoka, and Akira Ando, "Fast and automatic control of a frequency-tuned radiofrequency plasma source", Frontiers in Physics, 7, 00227 (2020).
Kazunori Takahashi, Taichi Saito, Akira Ando, Yuki Yabuta, Hisashi Mizuguchi, Naoko Yamamoto, Ryuichiro Kamei, and Shiro Hara, "Minimal multi-target plasma sputtering tool", Vacuum, 171, 109000 (2020).
Kazunori Takahashi, Takeharu Sugawara, and Akira Ando, "Spatially- and vector-resolved momentum flux lost to a wall in a magnetic nozzle rf plasma thruster", Scientific Reports, 10, 1061 (2020).
Kazunori Takahashi, Takeharu Sugawara, and Akira Ando, "Modification of momentum flux lost to a radial wall of a helicon source by neutral injection", Physics of Plasmas, 27, 064504 (2020).
Kazunori Takahashi, Takeharu Sugawara, Ando Akira, "Spatial measurement of axial and radial momentum fluxes of a plasma expanding in a magnetic nozzle ", New Journal of Physics, 22, 073034 (2020).
Kazunori Takahashi, Yoshinori Takao, and Akira Ando, "Increased thrust-to-power ratio of a stepped-diameter helicon plasma thruster with krypton propellant", Journal of Propulsion and Power, 36, 961 (2020).
Kengo Hanaoka, Kazunori Takahashi, and AKira Ando, "Reproducibility of a Plasma Production in a Fast- and Automatically-controlled Radio Frequency Plasma Source ", IEEE Transactions on Plasma Science, 48, 2138 (2020).
Yasuaki Haba, Kenichi Nagaoka, Katsuyoshi Tsumori, Masashi Kisaki, Kazunori Takahashi, Haruhisa Nakano, Katsunori Ikeda, Shinji Yoshimura, and Masaki Osakabe, "Response of beam focusing to plasma fluctuation in a filament-arc-type negative ion source", Japanese Journal of Applied Physics, 59, SHHA01 (2020).
高橋和貴,Christine Charles, Rod W Boswell, 鷹尾祥典, 安藤晃, "磁気ノズルRFプラズマスラスタ開発の現状", 宇宙太陽発電, 5, 14 (2020).
Kazunori Takahashi, "Helicon-type radiofrequency plasma thrusters and magnetic plasma nozzles", Reviews of Modern Plasma Physics, 3, 3 (2019).
Kazunori Takahashi, Tsuyoshi Imagi, Masashi Ishitomi, Kenichi Nagaoka, Yasuaki Haba, Haruhisa Nakano, Akira Ando, Masashi Kisaki, Katsuyoshi Tsumori and Katsunori Ikeda, "Spatiotemporal oscillation of an ion beam extracted from a potential-oscillating plasma source", New Journal of Physics, 21, 093043 (2019).
Kazunori Takahashi, Yoshinori Takao, and Akira Ando, "Low-magnetic- eld enhancement of thrust imparted by a stepped-diameter and downstream-gas-injected rf plasma thruster", Plasma Sources Science and Technology, 28, 085014 (2019).
Taichi Saito, Kazunori Takahashi, Akira Ando, Shiro Hara, "Enhancement of downstream plasma density by a stepped-diameter radiofrequency plasma source under a static magnetic field for a compact sputtering reactor", Vacuum, 163, 269 (2019).
Takeharu Sugawara, Kazunori Takahashi and Akira Ando, "Simultaneous Measurements of Local Axial and Radial Momentum Fluxes near a Radial Wall of a Helicon Source", Plasma and Fusion Research, 14, 1301143 (2019).
Hikaru Akahoshi, Kazunori Takahashi, and Akira Ando, "Filitering peripheral high temperature electrons in a cylindrical rf-driven plasmas by an axisymmetric radial magnetic field", AIP Advances, 8, 035208 (2018).
Kazuki Takase, Kazunori Takahashi, and Yoshinori Takao, "Effects of neutral distribution and external magnetic field on plasma momentum in electrodeless plasma thrusters", Physics of Plasmas, 24, 023507 (2018).
Kazuki Takase, Kazunori Takahashi, Yoshinori Takao, "Numerical Investigation of Neutral-Injection Effect on an Electrodeless Plasma Thruster", Transactions of JSASS Aerospace Technology Japan, 16, 105 (2018).
Kazunori Takaahshi, Yoshinori Takao, and Akira Ando, "Thrust imparted by a stepped-diameter magnetic nozzle rf plasma thruster", Applied Physics Letters, 113, 034101 (2018).
Kazunori Takahashi, Christine Charles, Rod W Boswell, and Akira Ando, "Adiabatic Expansion of Electron Gas in a Magnetic nozzle", Physical Review Letters, 120, 045001 (2018).
Kazunori Takahashi, Christine Charles, Rod W Boswell, and Akira Ando, "Demonstrating a new technology for space debris removal using a bi-directional plasma thruster", Scientific Reports, 8, 14417 (2018).
Kazunori Takahashi, Takeharu Sugawara, Hikaru Akahoshi, Yoshinori Takao, and Akira Ando, "Development of a momentum vector measurement instrument in steady-state plasmas", AIP Advances, 8, 105117 (2018).
Kazunori Takahashi, "Thruster: Current-free plasma", Encyclopedia of Plasma Technology, 1462-1472 (2017).
Kazunori Takahashi and Akira Ando, "Enhancement of axial momentum lost to the radial wall by the upstream magnetic field in a helicon source", Plasma Physics and Controlled Fusion, 59, 054007 (2017).
Kazunori Takahashi and Akira Ando, "Laboratory Observation of a Plasma-Flow-State Transition from Diverging to Stretching a Magnetic Nozzle", Physical Review Letters, 118, 225002 (2017).
Kazunori Takahashi, Hikaru Akahoshi, Christine Charles, Rod W. Boswell, and Akira Ando, "High temperature electrons exhausted from rf plasma sources along a magnetic nozzle", Physics of Plasmas, 24 084503 (2017).
Kazunori Takahashi, Yudai Nakano, and Akira Ando, "Frequency-tuning radiofrequency plasma source operated in inductively-coupled mode under a low magnetic field", Journal of Physics D: Applied Physics, 50, 265201 (2017).
Kazunori Takahashi, Aiki Chiba, Atsushi Komuro, and Akira Ando, "Experimental identification of an azimuthal current in a magnetc nozzle of a radiofrequency plasma thruster", Plasma Sources Science and Technology, 25, 055011 (2016).
Kazunori Takahashi, Atushi Komuro, and Akira Ando, "Operating a magnetic nozzle helicon thruster with strong magnetic field", Physics of Plasmas, 23, 033505(2016).
Kazunori Takahashi, Sho Takayama, Atsushi Komuro, and Akira Ando, "Standing Helicon Wave Induced by a Rapidly Bent Magnetic Field in Plasmas", Physical Review Letters, 116, 135001 (2016).
Kazunori Takahashi, Yoshinori Takao, and Akira Ando, "Neutral-depletion-induced axially asymmetric density in a helicon source and imparted thrust", Applied Physics Letters, 108, 074103 (2016).
Kazunori Takahashi, Yoshinori Takao, and Akira Ando, "Modifications of plasma density profile and thrust by neutral injection in a helicon plasma thruster, Applied Physics Letters, 109, 194101 (2016).
Taisei MOTOMURA, Kazunori TAKAHASHI, Yuji KASASHIMA, Kazuya KIKUNAGA, Fumihiko UESUGI, and Akira ANDO, "Evaluation of SF6 Reactive Ion Etching Performance with a Permanent Magnet Located behind the Substrate based on a Simple Design Concept", Journal of the Vacuum Society of Japan, 59, 11 (2016).
Yuko Sasaki, Sho Takayama, Haruhisa Nakano, Atsushi Komuro, Kazunori Takahashi, and Akira Ando, "Characteristics of a Large Diameter Radio-Frequency Negative Hydrogen Ion Source", Plasma and Fusion Research, 11, 2405088 (2016).
Aiki Chiba, Kazunori Takahashi, Atsushi Komuro, and Akira Ando, "Characterization of Helicon Plasma Thruster Performance Operated for Various Rare Gas Propellants", Journal of Propulsion and Power, 31, 962 (2015).
Kazunori Takaahshi, Hiroki Higashiyama, Koichi Takaki, and Akira Ando, "Testing a sheath compensated Langmuir probe in geometrically and magnetically expanding plasmas", Japanese Journal of Applied Physics, 54, 01AB01 (2015).
Kazunori Takahahsi, Atsushi Komuro, and Akira Ando, "Measurement of plasma momentum exerted on target by a small helicon plasma thruster and comparison with direct thrust measurement", Review of Scientific Instruments, 86, 023505 (2015).
Kazunori Takahashi, Aiki Chiba, Atsushi Komuro, and Akira Ando, "Axial Momentum Lost to a Lateral Wall of a Helicon Plasma Source", Physical Review Letters, 114, 195001 (2015).
Kazunori Takahashi, Atsushi Komuro, and Akira Ando, "Effect of source diameter on helicon plasma thruster performance and its high power operation", Plasma Sources Science and Technology, 24, 055004 (2015).
Koichi Takaki, Takumi Konishi, Ryota Mikawa, Kazunori Takahashi, and Ken Yukimura, "Temporal and spatial distributions of carbon shunting arc plasma", Japanese Journal of Applied Physics, 54, 01AA04 (2015).
Rod W. Boswell, Kazunori Takahashi, Christine Charles, and Igor D. Kaganovich, "Non-local electron energy probability function in a plasma expanding along a magnetic nozzle", Frontiers in Physics, 3, 14 (2015).
Shota Komizunai, Kohei Oikawa, Yuta Saito, Kazunori Takahashi, and Akira Ando, "High-power, low-pressure, inductively coupled RF plasma source using a FET-based inverter power supply", Japanese Journal of Applied Physics, 54, 01AA08 (2015).
Taisei Motomura, Kazunori Takahashi, Yuji Kasashima, Fumihiko Uesugi, and Akira Ando, "Effect of external magnetic field on compact inductively-coupled reactive ion etching reactor", 58, 392 (2015).
Yoshinori Takao and Kazunori Takahashi, "Numerical validation of axial plasma momentum lost to a lateral wall induced by neutral depletion", Physics of Plasmas, 22, 113509 (2015).
Yusuke Hoshino, Takayoshi Ishiyama, Atsushi Komuro, Kazunori Takahashi, and Akira Ando, "Development of 15 kW class RF plasma source for VASIMR type space propulsion with magnetic nozzle", Plasma and Fusion Research, 10, 3406052 (2015).
Kazuaki Miyamoto, Kazunori Takahashi, Koichi Takaki, Tamiya Fujiwara, and Akira Ando, "Performance characterization of a helicon plasma thruster with annualr magnet", Transactions of JSASS, Aerospace Technology Japan, 12, ists29 Tb_5 (2014).
Kazunori Takahashi and Akira Ando, "Observation of stationary plasma striation and collimated plasma transport in a 100 kHz inductively coupled plasma discharge", IEEE Transactions on Plasma Science, 42, 2784 (2014).
Kazunori Takahashi, Aiki Chiba, and Akira Ando, "Modifications of wave and plasma structures by a mechanical aperture in a helicon plasma thruster", Plasma Sources Science and Technology, 23, 064005 (2014).
Kazunori Takahashi, Atushi Komuro, and Akira Ando, "Low-pressure, high-density, and supersnoic plasma flow generated by a helicon magnetoplasmadynamic thruster", Applied Physics Letters, 105, 193503 (2014).
Kazunori Takahashi, Christine Charles, Rod W Boswell, and Akira Ando, "Experimental identification of thrust components imparted by an electrodeless helicon plasma thruster", Transactions of JSASS, Aerospace Technology Japan, 12, ists29 Pb_1 (2014).
Kazunori Takahashi, Christine Charles, Rod W Boswell, and Akira Ando, "Curret-free plasma thruster controlling cross-field diffusion under a magnetic nozzle", JPS Conference Proceedings, 1, 015008 (2014).
Kazunori Takahashi, Christine Charles, Rod W Boswell, and Akira Ando, "Effect of magnetic and physical nozzles on plasma thruster performance", Plasma Sources Science and Technology, 23, 044004 (2014).
Kazunori Takahashi, Taisei Motomura, Akira Ando, Yuji Kaasashima, Kazuya Kikunaga, Fumihiko Uesugi, and Shiro Hara, "Transport of a helicon plasma by a convergent magnetic field for high speed and compact plasma etching", Journal of Physics D: Applied Physics, 47, 425201 (2014).
Kazunori Takahashi, Tatsuya Suzuki, and Akira Ando, "Large diameter permanent-magnets-expanded plasma source for spontaneous generation of low-energy ion beam", Review of Scientific Instruments, 85, 02C101 (2014).
Kohei Oikawa, Yuta Saito, Shota Komizunai, Kazunori Takahashi, and Akira Ando, "Radiofrequency hydrogen ion source with permanent magnets providing axial magnetic field", Review of Scientific Instruments, 85, 02B124 (2014).
Kazunori Takahashi, Daiki Sato, Koichi Takaki, Akira Ando, "Development of a compact magnetically expanding plasma source with a strong magnetic field ", Plasma Sources Science and Technology, 22, 055002 (2013).
Kazunori Takahashi, Christine Charles, Rod Boswell, Akira Ando, "Performance improvement of a permanent magnet helicon plasma thruster", Journal of Physics D: Applied Physics, 46, 352001 (2013).
Kazunori Takahashi, Makoto Sato, Takahiro Ohkubo, Tamiya Fujiwara, Koichi Takaki, "2-D Measurement of Charged Particles Diffusing from a Double DC Corona Discharge Ionizer", IEEE Transactions on Plasma Science, 41, 1863 (2013).
C. Charles, R. Boswell, K. Takahashi, "Boltzmann expansion in a radiofrequency conical helicon thruster operating in xenon and argon", Applied Physics Letters, 102, 223510 (2013).
Kazunori Takahashi, "DIRECT THRUST MEASUREMENT OF A PERMANENT-MAGNETS HELICON PLASMA THRUSTER FOR SPACE PROPULSION ", Fusion Science and Technology, 63(1T), 123 (2013).
Kazunori Takahash, Daiki Sato, "PRODUCTION OF A HIGH DENSITY HELICON PLASMA UNDER AN IGBT-DRIVEN PULSED STRONG MAGNETIC FIELD ", Fusion Science and Technology, 63(1T), 395 (2013).
Tatsuya Suzuki, Kazunori Takahashi, "Large-diameter permanent-magnets-expanding plasma source applicable to an electrodeless plasma thruster", Fusion Science and Technology, 63(1T), 398 (2013).
Kazuaki Miyamoto, Kazunori Takahashi, "PRODUCTION OF A PERIODIC PLASMA STRUCTURE BY 400 KHz CAPACITIVELY COUPLED DISCHARGE", Fusion Science and Technology, 63(1T), 401 (2013).
Kazunori Takahashi, Christine Charles, Rod W. Boswell, "Approaching the Theoretical Limit of Diamagnetic-Induced Momentum in a Rapidly Diverging Magnetic Nozzle", Physical Review Letters, 110 195003 (2013).