Zobrazeno 1 - 10
of 131
pro vyhledávání: '"Akira Sakasai"'
Autor:
J. Yagyu, Akira Sakasai, Shigetoshi Nakamura, Kei Masaki, Go Matsunaga, Yusuke Shibama, Koji Kamiya, Shinji Sakurai, Fuminori Okano
Publikováno v:
Fusion Engineering and Design. 146:2375-2378
The thermal shield (TS) of JT-60SA which is a superconducting tokamak, is installed to reduce radiation heat load from a vacuum vessel (VV), a cryostat vessel and ports at ambient temperature to superconducting coils at 4 K. The TS is double walled s
Publikováno v:
Fusion Engineering and Design. 146:2738-2742
Disruption simulations with DINA code are performed for JT-60SA design. The simulation results have been applied for the design of many components, not only for the vacuum vessel and in-vessel components, but also for peripheral components. For insta
Autor:
Nakamura, Shigetoshi, Shibama, Yuusuke, Sakurai, Shinji, Yagyu, Junnichi, Okano, Fuminori, Kamiya, Koji, Matsunaga, Go, Masaki, Kei, Sakasai, Akira, Shigetoshi, Nakamura, Yusuke, Shibama, Shinji, Sakurai, Fuminori, Okano, Koji, Kamiya, Go, Matsunaga, Kei, Masaki, Akira, Sakasai
Publikováno v:
Fusion Engineering and Design. 146:2375-2378
The thermal shield (TS) of JT-60SA which is a superconducting tokamak, is installed to reduce radiation heat load from a vacuum vessel (VV), a cryostat vessel and ports at ambient temperature to superconducting coils at 4 K. The TS is double walled s
Autor:
José, Botija, Alonso, Javier, Cabrera, Santiago, Pilar, Fernández, Medrano, Mercedes, Ramos, Francisco, Rincon, Esther, Soleto, Alfonso, Cardella, Antonino, Masaki, Kei, Sakasai, Akira, Shibama, Yuusuke, Alberto, González, Rodriguez, Aitor, Kei, Masaki, Akira, Sakasai, Yusuke, Shibama
Publikováno v:
Fusion Engineering and Design. 146:822-826
The superconducting tokamak JT-60SA is currently being assembled at the QST laboratories in Naka (Japan). Within the European contribution in the framework of the Broader Approach, Spain has been responsible for providing JT-60SA cryostat. The cryost
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).
Autor:
Akira Sakasai, Fuminori Okano, Shigeharu Kokusen, Masaya Hanada, J. Yagyu, Shinji Sakurai, Shigetoshi Nakamura, Kei Masaki, T. Sasajima, Yasushi Kobori, Yusuke Shibama
Publikováno v:
Fusion Engineering and Design. 136:135-140
Port structure in the JT-60SA is designed to access vacuum vessel inside for vacuum exhausts, plasma heating systems and diagnostics etc. from cryostat outside. The port consists of a rectangular pipe, bellows and additional materials such as electri
Autor:
Akira Sakasai, Pilar Fernández, Luis Alvarez, Francisco Ramos, J. Botija, Kei Masaki, Esther Rincon, Santiago Cabrera, Antonino Cardella, Álvaro López García, A. Soleto, Yusuke Shibama, M. Medrano, Javier Alonso
Publikováno v:
Fusion Engineering and Design. 123:54-58
The JT-60SA cryostat is a large vacuum vessel made up of 304 stainless steel which encloses the tokamak providing the vacuum environment to reduce thermal loads on the components at cryogenic temperature. It must withstand the external atmospheric pr
Publikováno v:
RADIOISOTOPES. 67:175-178
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
Autor:
Toshio Ohnawa, Takeshi Matsukage, K. Shibanuma, Takao Hayashi, Akira Sakasai, Wataru Kono, Shinji Sakurai
Publikováno v:
Fusion Engineering and Design. 101:180-185
Remote pipe welding tool accessing from inside of the pipe has been newly developed for JT-60SA. Remote handling (RH) system is necessary for the maintenance and repair of the divertor cassette in JT-60SA. Because the space around the cooling pipe co