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Journal of Propulsion and Power, ISSN 0748-4658, 05/2019, Volume 35, Issue 3, pp. 565 - 571
The neutralizers in ion thruster systems do not generate thrust force. Hence, the power consumption of a neutralizer limits the thrust efficiency of the ion... 
ENGINEERING, AEROSPACE | Negative ions | Neutralizers | Power consumption | Feedback circuits | Feasibility studies | Ion sources | Fullerenes | Positive ions | Thrust | Ion beams
Journal Article
Journal of Propulsion and Power, ISSN 0748-4658, 09/2014, Volume 30, Issue 5, pp. 1368 - 1372
The electron cyclotron resonance microwave discharge ion thruster μ10, installed in the Japanese asteroid explorer Hayabusa, experienced trouble during a... 
ION-THRUSTER | ENGINEERING, AEROSPACE | Degradation | Thin films | Neutralizers | Asteroids | Electron cyclotron resonance | Flakes | Performance degradation | Magnetic circuits
Journal Article
Journal of Propulsion and Power, ISSN 0748-4658, 05/2010, Volume 26, Issue 3, pp. 601 - 604
THE age of space exploration using self-propelled small spacecraft is approaching. In the past decade, research and development of small spacecraft have... 
HAYABUSA | ENGINEERING, AEROSPACE | Arrivals | Attitude control | Miniature | Transfer functions | Spacecraft | Orbits | Drag (hindrance) | Missions | Devices | Maneuvers | Constellations | Research and development | Interferometers | Barometric pressure | Propulsion | Deorbiting | Space exploration | Atmospherics | Ion thrusters | Age | Micropropulsion | Microwave discharge | Microwaves
Journal Article
Biological Sciences in Space, ISSN 0914-9201, 2018, Volume 32, pp. 1 - 5
We propose radiation shielding using Martian magnetic anomalies to protect human crews on the Martian surface. We have simulated the trajectories of energetic... 
Protons | Animal behavior | Crews | Radiation | Radiation shielding | Mars surface | Magnetic anomalies | Magnetic poles | Magnetic shielding
Journal Article
Hyomen Kagaku, ISSN 0388-5321, 01/2012, Volume 33, Issue 12, pp. 669 - 674
The cathode-less electron cyclotron resonance ion engines propelled the Hayabusa asteroid explorer, launched in May 2003, which is focused on demonstrating the... 
Earth | Navigation | Deep space | Asteroids | Ion engines | Sampling | Microwave discharge | Spacecraft propulsion
Journal Article
Plasma Sources Science and Technology, ISSN 0963-0252, 09/2018, Volume 27, Issue 9, p. 95015
The microwave power absorption efficiency of the mu 10 ECR ion thruster, utilized in the Japanese asteroid explorers Hayabusa and Hayabusa2, is investigated in... 
xenon | electric propulsion | electron cyclotron resonance | microwave absorption | ion thruster | PHYSICS, FLUIDS & PLASMAS | MODEL | HAYABUSA
Journal Article
Acta Astronautica, ISSN 0094-5765, 12/2019, Volume 165, pp. 25 - 31
The microwave cathode was developed as a neutralizer for the microwave ion thrusters of the Japanese asteroid explorers Hayabusa and Hayabusa2. Since it emits... 
Microwave discharge cathode | Electric propulsion | Neutralizer | Hayabusa2 | Electron cyclotron resonance | Magnetic field
Journal Article
Beamed Energy Propulsion (AIP Conference Proceedings Volume 997), ISSN 0094-243X, 01/2008, Volume 997, Issue 1, pp. 572 - 581
The Hayabusa spacecraft rendezvoused with the asteroid Itokawa in 2005 after the powered flight in the deep space by the mul0 cathode-less electron cyclotron... 
THRUSTERS | CATHODES | CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS | STABILIZATION | PHOTONS | COLLECTIVE ACCELERATORS | ION BEAMS | IONS | ASTEROIDS | SPACE | OPERATION | PLASMA PRODUCTION | HIGH-FREQUENCY DISCHARGES | XENON | ELECTRON CYCLOTRON-RESONANCE | PROPULSION
Journal Article
Nature, ISSN 0028-0836, 10/2018, Volume 562, Issue 7726, pp. 185 - 187
Journal Article
Journal of Propulsion and Power, ISSN 0748-4658, 09/2014, Volume 30, Issue 5, pp. 1383 - 1389
Two optical fiber measurement techniques are used in this paper to reveal the physical mechanism of the enhancement of the thrust force of the μ10 electron... 
XENON | ELECTROOPTIC PROBE | ENGINEERING, AEROSPACE | Optical fibers | Electron cyclotron resonance | Waveguides | Propulsion | Thrusters | Ion thrusters | Density | Microwaves
Journal Article
Plasma Sources Science and Technology, ISSN 0963-0252, 10/2018, Volume 27, Issue 10, p. 105006
We report the experimental and simulated azimuthal ion velocities of a gridded ion thruster, which generates a roll torque around the thrust axis.... 
ion drift | laserinduced fluorescence spectroscopy | roll torque | electron cyclotron resonance | PIC-MCC simulation | azimuthal velocity | ion thruster | PHYSICS, FLUIDS & PLASMAS | laser-induced fluorescence spectroscopy | OPTICS
Journal Article
Plasma Sources Science and Technology, ISSN 0963-0252, 01/2018, Volume 27, Issue 1, p. 15013
This paper presents the first laboratory-based study to measure the azimuthal velocities of ions in the beam of a gridded ion thruster. Through the operation... 
laser-induced fluorescence spectroscopy | xenon | roll torque | electron cyclotron resonance | azimuthal velocity | ion thruster | PHYSICS, FLUIDS & PLASMAS | OPTICS | DEFLECTION | PROPULSION
Journal Article
Acta Astronautica, ISSN 0094-5765, 10/2016, Volume 127, pp. 702 - 709
The Japan Aerospace Exploration Agency launched the asteroid sample return spacecraft “Hayabusa2” on December 3, 2014. Hayabusa2 will reach the C-type asteroid... 
Deep space exploration | Sample return | Round trip mission | Asteroid rendezvous | ENGINEERING, AEROSPACE | Discovery and exploration | Cratering | Outer space | Asteroids | Earth | Spacecraft | Journeys | Collection | Exploration | Sample return missions | Asteroid missions
Journal Article
Journal of Biological Chemistry, ISSN 0021-9258, 03/2012, Volume 287, Issue 11, pp. 7896 - 7906
Journal Article
Journal of the Japan Society for Aeronautical and Space Sciences, ISSN 1344-6460, 01/2012, Volume 60, Issue 3, pp. 128 - 134
This study evaluates the system performances of a 10-W-class miniature ion thruster designed for 50kg small spacecraft. The miniature ion thruster used here,... 
Specifications | Miniature | Spacecraft | Thrusters | Specific impulse | Ion thrusters | Microwave discharge | Microwaves
Journal Article
by Kawamura, Seiji and Ando, Masaki and Seto, Naoki and Sato, Shuichi and Nakamura, Takashi and Tsubono, Kimio and Kanda, Nobuyuki and Tanaka, Takahiro and Yokoyama, Jun'ichi and Funaki, Ikkoh and Numata, Kenji and Ioka, Kunihito and Takashima, Takeshi and Agatsuma, Kazuhiro and Akutsu, Tomotada and Aoyanagi, Koh-suke and Arai, Koji and Araya, Akito and Asada, Hideki and Aso, Yoichi and Chen, Dan and Chiba, Takeshi and Ebisuzaki, Toshikazu and Ejiri, Yumiko and Enoki, Motohiro and Eriguchi, Yoshiharu and Fujimoto, Masa-Katsu and Fujita, Ryuichi and Fukushima, Mitsuhiro and Futamase, Toshifumi and Harada, Tomohiro and Hashimoto, Tatsuaki and Hayama, Kazuhiro and Hikida, Wataru and Himemoto, Yoshiaki and Hirabayashi, Hisashi and Hiramatsu, Takashi and Hong, Feng-Lei and Horisawa, Hideyuki and Hosokawa, Mizuhiko and Ichiki, Kiyotomo and Ikegami, Takeshi and Inoue, Kaiki T and Ishidoshiro, Koji and Ishihara, Hideki and Ishikawa, Takehiko and Ishizaki, Hideharu and Ito, Hiroyuki and Itoh, Yousuke and Izumi, Kiwamu and Kawano, Isao and Kawashima, Nobuki and Kawazoe, Fumiko and Kishimoto, Naoko and Kiuchi, Kenta and Kobayashi, Shiho and Kohri, Kazunori and Koizumi, Hiroyuki and Kojima, Yasufumi and Kokeyama, Keiko and Kokuyama, Wataru and Kotake, Kei and Kozai, Yoshihide and Kunimori, Hiroo and Kuninaka, Hitoshi and Kuroda, Kazuaki and Kuroyanagi, Sachiko and Maeda, Kei-ichi and Matsuhara, Hideo and Matsumoto, Nobuyuki and Michimura, Yuta and Miyakawa, Osamu and Miyamoto, Umpei and Miyoki, Shinji and Morimoto, Mutsuko Y and Morisawa, Toshiyuki and Moriwaki, Shigenori and Mukohyama, Shinji and Musha, Mitsuru and Nagano, Shigeo and Naito, Isao and Nakamura, Kouji and Nakano, Hiroyuki and Nakao, Kenichi and Nakasuka, Shinichi and Nakayama, Yoshinori and Nakazawa, Kazuhiro and Nishida, Erina and Nishiyama, Kazutaka and Nishizawa, Atsushi and Niwa, Yoshito and Noumi, Taiga and Obuchi, Yoshiyuki and Ohashi, Masatake and Ohishi, Naoko and Ohkawa, Masashi and Okada, Kenshi and Okada, Norio and Oohara, Kenichi and Sago, Norichika and ...
Classical and Quantum Gravity, ISSN 0264-9381, 05/2011, Volume 28, Issue 9, p. 094011
The objectives of the DECi-hertz Interferometer Gravitational Wave Observatory (DECIGO) are to open a new window of observation for gravitational wave... 
PHYSICS, MULTIDISCIPLINARY | COMPACT BINARIES | ASTRONOMY & ASTROPHYSICS | PHYSICS, PARTICLES & FIELDS
Journal Article
Journal of Propulsion and Power, ISSN 0748-4658, 05/2013, Volume 29, Issue 3, pp. 501 - 506
The basic properties of an air breathing ion engine, which uses upper atmospheric gases as a propellant, were experimentally investigated. The N2 environment... 
LOW-EARTH-ORBIT | ATOMIC OXYGEN | POLYMER | DEGRADATION | SYSTEMS | ENGINEERING, AEROSPACE | SIMULATION | Collimators | Beams (radiation) | Detonation | Lasers | Atomic oxygen | Ion engines | Breathing | Ion beams
Journal Article
Nihon Koku Uchu Gakkai Ronbunshu, ISSN 1344-6460, 05/2012, Volume 60, Issue 3, p. 128
  This study evaluates the system performances of a 10-W-class miniature ion thruster designed for 50kg small spacecraft. The miniature ion thruster used here,... 
Journal Article
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