Zobrazeno 1 - 10
of 71
pro vyhledávání: '"Kiyoshi Hanatani"'
Autor:
Nobuhiro Nishino, L. Zang, M. Takeuchi, K. Kasajima, T. Mizuuchi, Shigeru Konoshima, Shinsuke Ohshima, F. Sano, Yuji Nakamura, M. Sha, Shinji Kobayashi, Takashi Minami, Hiroyuki Okada, H.Y. Lee, Kazunobu Nagasaki, Satoshi Yamamoto, Kiyofumi Mukai, Kiyoshi Hanatani
Publikováno v:
Plasma Science and Technology. 15:213-216
A fast video camera is verified to be a powerful tool for observation of filaments/blobs near the last closed flux surface (LCFS). In order to extract the fluctuation component from the raw data of the fast camera, a pre-processing technique, sliding
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d282fa66a60b72e12f0298761696ef4d
https://doi.org/10.1088/1009-0630/15/3/04
https://doi.org/10.1088/1009-0630/15/3/04
Autor:
T. Mizuuchi, Satoshi Yamamoto, Shigeru Konoshima, Shinsuke Ohshima, Kiyofumi Mukai, Kiyoshi Hanatani, M. Takeuchi, Kazunobu Nagasaki, Nobuhiro Nishino, Yuji Nakamura, Y. Takabatake, T. Minami, Hiroyuki Okada, Fumimichi Sano, Shinji Kobayashi
Publikováno v:
Journal of Nuclear Materials. 415:S447-S450
Since fueling technique is very important for maintaining fusion plasma, supersonic molecular beam injection (SMBI) was studied using mainly fast cameras, Hα measurement, Langmuir/magnetic probes, and electron density/diamagnetic measurement in Heli
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::081f160efd43a9d18cdbde819cd65aa9
https://doi.org/10.1016/j.jnucmat.2010.12.037
https://doi.org/10.1016/j.jnucmat.2010.12.037
Autor:
T. Minami, K. Minami, Shigeru Konoshima, Kazunobu Nagasaki, Y. Takabatake, Satoshi Yamamoto, Kiyofumi Mukai, Hiroyuki Okada, Yuji Nakamura, H.Y. Lee, Shinji Kobayashi, Kiyoshi Hanatani, Yousuke Nakashima, M. Takeuchi, S. Oshima, T. Mizuuchi, Nobuhiro Nishino, S. Kishi, Fumimichi Sano
Publikováno v:
Journal of Nuclear Materials. 415:S443-S446
Fueling control with a supersonic molecular-beam injection (SMBI) technique is examined in Heliotron J comparing with conventional gas-puffing. The supersonic H2-beam is injected from a fast valve with a conic nozzle and the apparent fueling efficien
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d84a3e3a8d3ae290bdcc59b13625fb2a
https://doi.org/10.1016/j.jnucmat.2010.10.027
https://doi.org/10.1016/j.jnucmat.2010.10.027
Autor:
L. Zang, Fumimichi Sano, Shigeru Konoshima, Shouhei Arai, Shinsuke Ohshima, T. Kagawa, T. Minami, Tohru Mizuuchi, Hiroyuki Okada, Yuji Nakamura, H.Y. Lee, Kento Yamamoto, Masashige Suwa, Hiroaki Yashiro, Kiyoshi Hanatani, Takashi Minami, Kazunobu Nagasaki, Kiyofumi Mukai, Kouji Mizuno, Satoshi Yamamoto, M. Takeuchi, Hiroto Watada, Yosuke Nakashima, Shinji Kobayashi, Kohta Nomura, Hayao Yoshino, Yoshinobu Wada, Nobuhiro Nishino
Publikováno v:
Plasma Science and Technology. 13:21-25
Recent progress in plasma control studies on the improvement of plasma performance in Heliotron J is reviewed. The supersonic molecular beam injection (SMBI) fueling is successfully applied to Heliotron J plasma. A supersonic H2-beam is effectively i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::af6333c06206db2ede2aef7885e1ce73
https://doi.org/10.1088/1009-0630/13/1/05
https://doi.org/10.1088/1009-0630/13/1/05
Autor:
K. Sakamoto, K. Minami, Hiroyuki Okada, Hayao Yoshino, Yuji Nakamura, Ángela Fernández, T. Minami, S. Kishi, A. Cappa, H.Y. Lee, Gen Motojima, Shigeru Konoshima, Shinsuke Ohshima, Fumimichi Sano, K. Masuda, Y. Takabatake, T. Mizuuchi, Kiyoshi Hanatani, Kiyofumi Mukai, Shinji Kobayashi, Satoshi Yamamoto, Boyd Blackwell, Kazunobu Nagasaki, Yasuo Yoshimura
Publikováno v:
Contributions to Plasma Physics. 50:656-660
Electron cyclotron current drive (ECCD) experiments have been made in Heliotron J by using an upgraded EC launching system. A focused Gaussian beam is injected with the parallel refractive index, N||, ranging from -0.05 to 0.6. Ray tracing calculatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd0740f42c225e0a91c12126e862db1f
https://doi.org/10.1002/ctpp.200900018
https://doi.org/10.1002/ctpp.200900018
Publikováno v:
Contributions to Plasma Physics. 50:635-638
This paper reports the Monte-Carlo calculation of the neoclassical diffusion and viscosity coefficients with the incompressible E × B drift. A recently developed Monte-Carlo code, based on the Einstein-Helfand relation, is extended for this purpose.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e252f4d9d5e1251040a56a18caa76778
https://doi.org/10.1002/ctpp.200900055
https://doi.org/10.1002/ctpp.200900055
Autor:
Shinji Kobayashi, Fumimichi Sano, M. Takeuchi, T. Mizuuchi, T. Fukuda, Vladimir Zhuravlev, T. Minami, K. Mukai, Kiyoshi Hanatani, Hiroyuki Okada, Kazunobu Nagasaki, Satoshi Yamamoto, S. Kishi, Shigeru Konoshima, Shinsuke Ohshima, Hiroaki Yashiro, K. Minami, D. Nishi, H.Y. Lee, Y. Takabatake
Publikováno v:
Contributions to Plasma Physics. 50:646-650
A microwave reflectometer is developed for electron density profile measurement in Heliotron J. An amplitude modulation (AM) type system is adopted to reduce density fluctuation effects. The carrier frequency ranges from 33 to 56 GHz, and the modulat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::98d9adca022af52746e4e50d514ee437
https://doi.org/10.1002/ctpp.200900023
https://doi.org/10.1002/ctpp.200900023
Autor:
K. Toushi, Yasuhiro Suzuki, H.Y. Lee, K. Nagaoka, Kazunobu Nagasaki, Shinji Kobayashi, Kiyoshi Hanatani, T. Minami, K. Hosaka, Sadayoshi Murakami, T. Mizuuchi, Y. Takeiri, Satoshi Yamamoto, Yuji Nakamura, Masayuki Yokoyama, Hiroyuki Okada, Fumimichi Sano, Shigeru Konoshima, Shinsuke Ohshima
Publikováno v:
Contributions to Plasma Physics. 50:534-539
In Heliotron J, low magnetic shear configuration, instabilities with frequency chirping in the frequency range of Alfven eigenmodes have been observed in tangentially injected neutral beam plasmas. These modes are induced by energetic-particle driven
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ed04b631b61d9ac39c65f0b21dd1e6a5
https://doi.org/10.1002/ctpp.200900039
https://doi.org/10.1002/ctpp.200900039
Autor:
T. Mizuuchi, S. Kishi, K. Minami, Shinya Watanabe, Fumimichi Sano, Y. Takabatake, T. Minami, Nobuhiro Nishino, Kiyoshi Hanatani, H.Y. Lee, Yousuke Nakashima, Hiroyuki Okada, Y. Yamamoto, Shigeru Konoshima, Yuji Nakamura, Kiyofumi Mukai, Shinji Kobayashi, Kazunobu Nagasaki
Publikováno v:
Contributions to Plasma Physics. 50:639-645
Gas fueling by supersonic molecular beam injection (SMBI) is successfully applied to ECH/NBI plasmas in Heliotron J. The stored energy reached ∼4.5 kJ for a heating combination of ECH (∼0.35 MW) and NBI (∼0.6 MW), which is about 50 % higher tha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::deb99ffbc7d4da478d48181dc4534424
https://doi.org/10.1002/ctpp.200900017
https://doi.org/10.1002/ctpp.200900017
Autor:
Hiroyuki Okada, Gen Motojima, Fumimichi Sano, Y. Kowada, H. Takahashi, F. Hamagami, D. Katayama, K. Hosaka, Hajime Arimoto, H. Matsuoka, A. Nakajima, K. Murai, Shinji Kobayashi, Satoshi Yamamoto, Kiyofumi Mukai, Nobuhiro Nishino, Shinya Watanabe, Katsumi Kondo, Kazunobu Nagasaki, Kiyoshi Hanatani, Yuji Nakamura, Satoshi Mihara, Tohru Mizuuchi, Hiroyuki Yasuda, Yousuke Nakashima
Publikováno v:
Journal of Nuclear Materials. :428-431
The edge plasma profile (the ion-saturation current profile) and its time evolution at three different positions of the field topology (near inboard-X, outboard-O and outboard-X points) are discussed focusing on the spontaneous transition to an impro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f8ec9657177e51f94fc33d17ea312d27
https://doi.org/10.1016/j.jnucmat.2009.01.116
https://doi.org/10.1016/j.jnucmat.2009.01.116