Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Yasufumi Sasatani"'
Autor:
Kazuhisa Fujita, Kotaro Kondo, K. Takamatsu, Toshihiko Kadono, I. Matsushima, Y. Owadano, Masatake Yoshida, K. A. Tanaka, Norimasa Ozaki, Motohiro Nakano, Yasufumi Sasatani, Eiichi Takahashi, T. Matsumura, H. Ito, N.K. Mitani, Hisataka Takenaka
Publikováno v:
Laser and Particle Beams. 19:623-630
Flyer acceleration experiments are carried out using a KrF laser system with a pulse duration of 10–15 ns and an intensity of ∼1.0 × 1013 W/cm2. Three-layered targets (aluminum–polyimide–tantalum) are used. First, an average velocity of lase
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::78b0165ba4d2d4c3391a4f8cc621f551
https://doi.org/10.1017/s0263034601194097
https://doi.org/10.1017/s0263034601194097
Autor:
M. Miyanaga, Kazuo Tanaka, N. Kozu, S. Hattori, K. Kishida, Norimasa Ozaki, Motohiro Nakano, M. Ishiguchi, Kunihiko Wakabayashi, Masatake Yoshida, Yasufumi Sasatani, Ken-ichi Kondo, Hisataka Takenaka, Katsunobu Nishihara, T. Tange, Keiji Nagai, Y. Fujimoto, Takayoshi Norimatsu
Publikováno v:
Journal of Applied Physics. 89:2571-2575
Two partially coherent light laser beams, coupled with a random phase plate were focused at an angle of 31.7° with the centers of the beams offset by 250 μm. This produced a relatively uniform (7% root-mean-square) irradiated spot of 400 μm. When
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::95c0cfcd1215f4838bafff920956e08f
https://doi.org/10.1063/1.1342189
https://doi.org/10.1063/1.1342189
Autor:
Yoshiaki Yamauchi, Kazuo Tanaka, Keizo Kishida, Yasufumi Sasatani, Norimasa Ozaki, Motohiro Nakano, Hidehiko Amaki, Takao Kasai
Publikováno v:
JOURNAL OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES. 49:262-267
Using laser-accelerated Al flyers, we examined hyper-velocity impact tests of CFRP (carbon fiber reinforced plastics) laminates as a simulation of orbital debris impact. A short-pulsed intense laser beam can accelerate a small flyer as fast as LEO (l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9618ed1cb3adfada70f0d23fa137cf5e
https://doi.org/10.2322/jjsass.49.262
https://doi.org/10.2322/jjsass.49.262
Autor:
Hisataka Takenaka, Katsunobu Nishihara, Sergei I. Anisimov, Yasufumi Sasatani, Motohiko Hara, Masatake Yoshida, Norimasa Ozaki, Kazuo Tanaka, Motohiro Nakano, Kunioki Mima, Ken-ichi Kondo
Publikováno v:
Physics of Plasmas. 7(2):676-680
Multi-layered flyer (aluminum–polyimide–tantalum) is designed as a high speed flyer making use of shock impedance matching and reverberation techniques. The designed three layered targets have been irradiated using a 20 J laser beam. Flyer veloci
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1101e9e54fe2314e95777a6e96e7ab89
https://hdl.handle.net/11094/2887
https://hdl.handle.net/11094/2887
Autor:
Tomoyuki Tange, Hisataka Takenaka, Norimasa Ozaki, Naoshi Kozu, Kazutaka G. Nakamura, Shyuhei Hattori, Masatake Yoshida, Yasushi Fujimoto, Yasufumi Sasatani, Kunihiko Wakabayashi, Ken-ichi Kondo, Kazuo Tanaka
Publikováno v:
Japanese Journal of Applied Physics. 39:1815
An extremely high pressure (1.74±0.22 TPa) was generated in Ta by using strong shock waves driven by direct irradiation of laser beams from the GEKKO XII glass laser system. The shock velocity was measured directly and the particle velocity and pres
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::93eab73d14c2857636be6cbc09a53e97
https://doi.org/10.1143/jjap.39.1815
https://doi.org/10.1143/jjap.39.1815