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Akademický článek
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Publikováno v:
Fusion Engineering and Design. 136:1653-1657
Estimation of neutron yields produced from SS316L, CuCrZr, and graphite targets of the mainly In-vessel components of a Tokamak fusion device for MeV-energy electrons has been performed by neutronics analysis using a 3D Monte Carlo code [PHITS], incl
Akademický článek
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Autor:
Kiyoshi Yoshida, Manabu Takechi, Katsuhiko Tsuchiya, Yoshihiko Koide, Atsuhiko M. Sukegawa, Kaname Kizu, S. Sakurai, Haruyuki Murakami, Go Matsunaga
Publikováno v:
IEEE Transactions on Applied Superconductivity. 26:1-5
The inhomogeneous poloidal magnetic field of tokamak device, which is called error field, has to be reduced because the error field degrades the plasma performance. There are 18 sets of EFC coils installed inside the vacuum vessel for JT-60SA to comp
Autor:
M. Ishikawa, Naoyuki Oyama, Takeo Nishitani, T. Bando, Kyosuke Shinohara, S. Sumida, A. Bierwage, Atsuhiko M. Sukegawa, Eiji Takada, Kunihiro Ogawa
Publikováno v:
Review of Scientific Instruments 91, 113504 (2020); https://doi.org/10.1063/5.0025902
Materials and structures of a collimator for a new neutron emission profile monitor in JT-60SA are examined through Monte Carlo simulations using the Monte Carlo N-Particle transport code. First, the shielding properties of various material combinati
Autor:
Atsuhiko M. Sukegawa, Koichi Okuno
Publikováno v:
IEEE Transactions on Plasma Science. 43:3916-3920
In this study, a comparison between simulations using the Particle and Heavy Ion Transport code System (PHITS) code and activated material analysis of JT-60U have been performed. Neutron transport has been simulated using the Monte Carlo method PHITS
Autor:
Shinji Sakurai, Yoshitaka Ikeda, Go Matsunaga, Atsuhiko M. Sukegawa, Kiyoshi Yoshida, Haruyuki Murakami, Manabu Takechi
Publikováno v:
Fusion Engineering and Design. :2076-2079
In the present study, the thermal endurance of epoxy-based, bismaleimides, and cyanate ester resins for the current design of the in-vessel coils was measured by performing acceleration tests to assess their insulation properties using the thermal en
Autor:
Kazuhiro Kobayashi, T. Nishiyama, N. Akino, Kenji Yokokura, Yujiro Ikeda, Hirotaka Kubo, H. Ichige, T. Sasajima, Fuminori Okano, J. Yagyu, Y. Miyo, Shinichi Chiba, Atsuhiko M. Sukegawa, Akira Sakasai, K. Kiyono, Masaya Hanada, A. Kaminaga
Publikováno v:
Fusion Engineering and Design. 89:2018-2023
Disassembly of the JT-60U torus was started in 2009 after 18 years of D2 operations and was completed in October 2012 for assembling the JT-60SA torus at the same position. The JT-60U torus was featured by the complicated and welded structure against
Publikováno v:
Progress in Nuclear Science and Technology. 4:627-630
Flexible heat-resistant neutron and gamma-ray shielding resins have been successfully developed through the use of a polymer resin. The production process involves a new mixing technique of the resin and materials for neutron absorber/gamma-ray atten
Autor:
Atsuhiko M. Sukegawa, Jun-ichi Yagyu, A. Kaminaga, Kazuhiro Kobayashi, N. Akino, K. Kiyono, Hirotaka Kubo, T. Sasajima, Y. Miyo, Kenji Yokokura, Masaya Hanada, Jt Team, Fuminori Okano, H. Ichige, Yoshitaka Ikeda, Akira Sakasai, Tomokazu Nishiyama, Shinichi Chiba
Publikováno v:
Transactions of the Atomic Energy Society of Japan. 13:167-178