@article{oai:repo.qst.go.jp:00085040, author = {Go, Matsunaga and Yuusuke, Shibama and Fuminori, Okano and Jiyunichi, Yagiyuu and Manabu, Takechi and Kaname, Kizu and Kazuya, Hamada and Haruyuki, Murakami and Shinichi, Moriyama and Masaya, Hanada and V. Tomarchio and E. Di Pietro and Mizumaki, S. and Sagawa, K. and Hayakawa, A. and Go, Matsunaga and Yusuke, Shibama and Fuminori, Okano and Junnichi, Yagyu and Manabu, Takechi and Kaname, Kizu and Kazuya, Hamada and Haruyuki, Murakami and Shinichi, Moriyama and Masaya, Hanada}, journal = {Fusion Engineering and Design}, month = {Jan}, note = {The JT-60 Super Advanced (JT-60SA) tokamak was constructed with very tight tolerances for assembly and handling of heavy components in an enclosed space. Millimetre-order precision was required for the tokamak assembly, not only to avoid mechanical interference, but also to obtain good plasma performance by keeping the magnetic error field low. This effort entailed the development of numerous unique procedures. This paper reports on these procedures, focusing on assembly and testing of the final sector of the vacuum vessel, the central solenoid, top parts of the tokamak, and the in-vessel components.}, title = {Achievement of precise assembly of the JT-60SA superconducting tokamak}, volume = {174}, year = {2022} }