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Ishigami, Keisuke*; Yoshimatsu, Kohei*; Toyota, Daisuke*; Takizawa, Masaru*; Yoshida, Teppei*; Shibata, Goro*; Harano, Takayuki*; Takahashi, Yukio*; Kadono, Toshiharu*; Verma, V. K.*; et al.
Physical Review B, 92(6), p.064402_1 - 064402_5, 2015/08
Times Cited Count:46 Percentile:84.31(Materials Science, Multidisciplinary)Uchida, Teppei; Hirooka, Shun; Sugata, Hiromasa*; Shibata, Katsuya*; Sato, Daisuke*; Kato, Masato; Morimoto, Kyoichi
Proceedings of International Nuclear Fuel Cycle Conference; Nuclear Energy at a Crossroads (GLOBAL 2013) (CD-ROM), p.1549 - 1553, 2013/09
Oda, Yasuhisa; Shibata, Teppei*; Komurasaki, Kimiya*; Takahashi, Koji; Kasugai, Atsushi; Sakamoto, Keishi
Journal of Propulsion and Power, 25(1), p.118 - 122, 2009/01
Times Cited Count:24 Percentile:82.64(Engineering, Aerospace)Oda, Yasuhisa*; Shibata, Teppei*; Komurasaki, Kimiya*; Takahashi, Koji; Kasugai, Atsushi; Sakamoto, Keishi
Journal of Space Technology and Science, 22(2), p.30 - 37, 2006/00
A thrust generation model for microwave rocket was studied. The model was based on shock wave propagation driven by atmospheric plasma as analogy of pulse detonation engine (PDE). Pressure histories in the thruster were measured using pressure gauges and compared to the model. The shock wave was measured from pressure history in the thruster model. The relationship between the shock-wave traveling time and propagation distance showed good linearity. At the same time, the propagation velocity of the ionization front in the tube was also measured. The velocity is also nearly constant during the propagation. The both velocities were increased with the power density. The both the ionization front and the shock wave propagated at the same velocity when they propagated at supersonic speed. Thrust impulse was estimated from pressure history. Estimated thrust showed good agreement to the result of the flight experiment.
Oda, Yasuhisa*; Shibata, Teppei*; Komurasaki, Kimiya*; Takahashi, Koji; Kasugai, Atsushi; Sakamoto, Keishi
no journal, ,
An experiment on microwave beaming propulsion under reduced pressure has been conducted. 170GHz millimeter-wave of up to 0.5MW was provided by a gyrotron. Although measured impulsive thrust has a weak dependency on ambient pressure, propagation velocity of the plasma front observed using a high-speed framing camera was increased with the decrease in ambient pressure.
Shibata, Teppei*; Oda, Yasuhisa*; Komurasaki, Kimiya*; Takahashi, Koji; Kasugai, Atsushi; Sakamoto, Keishi
no journal, ,
no abstracts in English
Uchida, Teppei; Sugata, Hiromasa*; Shibata, Katsuya*; Sato, Daisuke*; Morimoto, Kyoichi
no journal, ,
no abstracts in English
Uchida, Teppei; Sugata, Hiromasa*; Shibata, Katsuya*; Sato, Daisuke*; Morimoto, Kyoichi
no journal, ,
no abstracts in English