Design and manufacturing status of JT-60SA vacuum vessel and cryostat

Shibama, Yusuke; Masaki, Kei; Nakamura, Shigetoshi; Kaminaga, Atsushi; Miyo, Yasuhiko; Sakurai, Shinji; Shibanuma, Kiyoshi; Sakasai, Akira

JT-60SA is a fully superconducting coil tokamak upgraded from the JT-60U. This paper focuses on the vacuum vessel (VV, 150 tons) and cryostat (610 tons), whose structural concepts are developed from the ASME BPVC Section VIII Division 2. The VV is a stainless steel torus double-walled, which achieves high electrical resistivity in the toroidal and high stiffness in the light structure. The cryostat is large size vacuum thermal insulation vessel. The present status of both vessels is reported.

Language	:	Japanese
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Meeting title	:	Plasma Conference 2011 (PLASMA 2011)
Held date	:	2011/11
Location (city)	:	Kanazawa
Location (country)	:	Japan
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Registration No. : BB20111943
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