Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Toshihisa Okuyama"'
Autor:
Atsuro Hayakawa, Junji Oomori, Kei Masaki, Mitsuru Ejiri, Tsutomu Mochida, Ogawa Takahisa, S. Mizumaki, Shiro Asano, Yusuke Shibama, Toshihisa Okuyama, Akira Sakasai, Nobuji Takahashi, Koichi Esaki, Masahiro Yamada, Yutaka Yanagi
Publikováno v:
Fusion Engineering and Design. 136:661-666
In the operation of JT-60SA tokamak device, such loads as electromagnetic (horizontal and vertical loads of 2.5 MN and 7.5 MN, respectively) and seismic are imposed on the VV, and thermal expansion takes place during the baking of Vacuum Vessel (VV).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f654dd1a9f501e909ff9d4c5bf3b3ac5
https://doi.org/10.1016/j.fusengdes.2018.03.052
https://doi.org/10.1016/j.fusengdes.2018.03.052
Autor:
K. Tsuchiya, A. Kaminaga, Valerio Tomarchio, Mitsuru Ejiri, Shiro Asano, Toshihisa Okuyama, E. Di Pietro, Kei Masaki, Esther Rincon, J. Yagyu, Y. Miyo, Yusuke Shibama, Akira Sakasai, Kiyoshi Yoshida, Fuminori Okano, M. Medrano, Tamotsu Morimoto, S. Davis, K. Kizu, S. Sakurai, Atsuro Hayakawa, Yoshihiko Koide, Koichi Hasegawa, J. Botija, S. Mizumaki, T. Sasajima, Javier Alonso, Tsuyoshi Ogawa, H. Ichige, M. Hanada, T. Nishiyama
Publikováno v:
Fusion Engineering and Design. 125:1-8
The JT-60SA superconducting tokamak is being constructed under dual projects, the EU-JA international collaboration framework and Japanese national programme. To suppress magnetic field error to less than 0.01% with respect to the toroidal magnetic f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5203c050cd02c90c2deadd79287eba4c
https://doi.org/10.1016/j.fusengdes.2017.10.014
https://doi.org/10.1016/j.fusengdes.2017.10.014
Autor:
S. Mizumaki, J. Yagyu, Kaname Kizu, Toshihisa Okuyama, Yusuke Shibama, Tamotsu Morimoto, Keiichi Sagawa, Fuminori Okano, Atsuro Hayakawa
Publikováno v:
Fusion Engineering and Design. 160:111918
The JT-60SA Vacuum Vessel (VV) was manufactured as the 10 sectors split in the factory and these sectors were weld-assembled as the 360-degree torus with the design offset value of the weld shrinkage. The dimensions as the 10 m scale torus were well
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f36d7405a9e23b4f4da24928cd0291e
https://doi.org/10.1016/j.fusengdes.2020.111918
https://doi.org/10.1016/j.fusengdes.2020.111918
Autor:
Atsuro Hayakawa, Keiich Sagawa, Takashi Hamada, Fuminori Okano, Tsutomu Mochida, Hiromichi Ogawa, Y. Miyo, S. Mizumaki, Kei Masaki, J. Yagyu, Yusuke Shibama, Akira Sakasai, Shiro Asano, Tamotsu Morimoto, Toshiyuki Minemura, Daiki Yoneta, A. Kaminaga, Yoshishige Nobuoka, Toshihisa Okuyama
Publikováno v:
Fusion Engineering and Design. :1614-1619
Manufacturing of JT-60SA Vacuum Vessel (VV) is under the onsite sector assembly, where ten VV sectors are to be welded together into a torus. The vessel is 6.6 m height and 5 m major radius and a double wall structure with the thickness of 18 mm and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb6ac4379f1b87cce1336ca6e4348ac1
https://doi.org/10.1016/j.fusengdes.2015.06.072
https://doi.org/10.1016/j.fusengdes.2015.06.072
Autor:
Atsushi Kikuchi, S. Mizumaki, Akira Sakasai, Toshio Kanahara, Yutaka Yanagi, Koji Ichihashi, Yusuke Shibama, Shiro Asano, Toshiwo Oonawa, Kei Masaki, Mitsuru Ejiri, Masahiro Katayama, Toshihisa Okuyama
Publikováno v:
Fusion Engineering and Design. 86:1816-1820
The real vacuum vessel (VV) manufacturing of JT-60SA has started since November 2009 at Toshiba. Prior to starting manufacturing, fundamental welding R&Ds had been performed by three stages. In the first stage, primary tests for screening welding met
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6cba1e81921f24ae12475daec1af95c1
https://doi.org/10.1016/j.fusengdes.2011.03.024
https://doi.org/10.1016/j.fusengdes.2011.03.024
Autor:
T. Kondo, K. Ichihashi, Toshikazu Kawamoto, Masayasu Sato, Shiro Asano, Toshihisa Okuyama, Yasuhiro Suzuki, Masaki Osakabe, Katsunori Ikeda, Osamu Kaneko, Yoshihide Oka, Yasuhiko Takeiri, Katsuyoshi Tsumori, E. Asano, K. Nagaoka
Publikováno v:
Review of Scientific Instruments. 75:1847-1850
In this article we describe the first results of beam injection using an improved negative ion source, which consists of a set of steering and multislot grounded grids. The set of the grids is designed to achieve high power beam injection for the lar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eabe91f5800346132248412cd6245f0c
https://doi.org/10.1063/1.1702107
https://doi.org/10.1063/1.1702107
Autor:
Suzuki Yasuo, Masaki Osakabe, Osamu Kaneko, Toshihisa Okuyama, Shiro Asano, Yoshihide Oka, Yasuhiko Takeiri, Katsuyoshi Tsumori
Publikováno v:
Review of Scientific Instruments. 70:2338-2344
The influence of filament positions on the arc discharge characteristics of a negative hydrogen ion source for a neutral beam injector were studied by simulations and experiments. We have made a simulation code named “PRIMELOC2,” which calculates
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9168307cbc71e99a3d79fc9a3a963128
https://doi.org/10.1063/1.1149760
https://doi.org/10.1063/1.1149760
Autor:
Satoshi Suzuki, Yoshitaka Ikeda, Toshihisa Okuyama, K. Kiyono, Masami Seki, Suzuki Yasuo, K. Yokoyama, Tsuyoshi Imai, Sunao Maebara, Fusao Saito, K. Suganuma
Publikováno v:
Fusion Engineering and Design. :355-361
A mock-up module of an antenna tip made of carbon fiber composite (CFC) was fabricated for the development of a heat-resistive front of the lower hybrid current drive (LHCD) antenna. The CFC surface was coated with a thin Ti layer and was plated with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::98974f55b7a20f6e4e88fe17478b1331
https://doi.org/10.1016/s0920-3796(97)00183-x
https://doi.org/10.1016/s0920-3796(97)00183-x
Autor:
Tsutomu Kuroda, T. Kawamoto, Toshihisa Okuyama, Osamu Kaneko, Katsuyoshi Tsumori, K. Seko, Yoshihide Oka, Akira Ando, R. Akiyama, Yasuhiro Suzuki, Yasuhiko Takeiri
Publikováno v:
Fusion Engineering and Design. 26:473-483
A large negative hydrogen ion source with a rod-type magnetic filter was investigated for the construction of a neutral beam injection (NBI) system for the large helical device (LHD). A 1 3 - scale device was constructed and investigated. Three main
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7842735345a2363b222482cd22fc7f31
https://doi.org/10.1016/0920-3796(94)00214-r
https://doi.org/10.1016/0920-3796(94)00214-r
Publikováno v:
Review of Scientific Instruments. 71:1154-1156
A simulation code named “STELOC2” has been developed to calculate the stray electron trajectories of negative ion sources for neutral beam injectors (NBIs). The electrons stripped from the negative ions were treated as one of the main sources of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b9bc59bc6c68766341c31e4c4de72088
https://doi.org/10.1063/1.1150413
https://doi.org/10.1063/1.1150413