@article{oai:repo.qst.go.jp:00075484,
 author = {中村, 誠俊 and 正木, 圭 and 櫻井, 真治 and 芝間, 祐介 and 笹島, 唯之 and 石仙, 茂晴 and 小堀, 康志 and 岡野, 文範 and 柳生, 純一 and 花田, 磨砂也 and 逆井, 章 and Nakamura, Shigetoshi and Masaki, Kei and Sakurai, Shinji and Shibama, Yuusuke and Sasajima, Tadayuki and Kokusen, Shigeharu and Kobori, Yasushi and Okano, Fuminori and Yagiyuu, Jiyunichi and Hanada, Masaya and Sakasai, Akira},
 journal = {Fusion Engineering and Design},
 month = {Nov},
 note = {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 electrical insulations and connection parts for onsite assembly. The vacuum space as the
thermal insulation for superconducting coils is penetrated by the port as the vacuum interfaces between the
vacuum vessel and the cryostat so that port structure is required to be structurally integrated against plasma and
baking operations and accidental events. This structure must be installed in narrow space, and electrical insulation
is functionally designed to avoid the unexpected large eddy current loop. This paper reports the design
of port connection structure for the assembly. Port connection parts “Port Extension” and “adjustable plate” are
introduced to absorb vertical of 10 mm, toroidal of 8 mm, and port axial of 10mm error due to the manufacturing
and assembly. The bellows are expected to absorb relative displacement of 39mm only between the
vacuum vessel and the cryostat during the operation. The structure is confirmed to withstand the load conditions
because stress is estimated to be lower than allowable level by FEM analysis.},
 pages = {135--140},
 title = {Design of port structure between vacuum vessel and cryostat in JT-60SA},
 volume = {136},
 year = {2018}
}