@article{oai:repo.qst.go.jp:00082683, author = {Hideki, Kajitani and Imagawa, Shinsaku and Obana, Tetsuhiro and Mio, Nakamoto and Kunihiro, Matsui and Norikiyo, Koizumi and Masataka, Nakahira and Hideki, Kajitani and Mio, Nakamoto and Kunihiro, Matsui and Norikiyo, Koizumi and Masataka, Nakahira}, issue = {5}, journal = {IEEE Transactions on Applied Superconductivity}, month = {Mar}, note = {Nine toroidal field (TF) coils have been developed in Japan for the international thermonuclear experimental reactor (ITER). The joint resistance of TF coil should satisfy the requirement of smaller than 3 nano-ohm at 2 T of external magnetic field and 68 kA of transport current. Full-size joint sample (FSJS) tests were performed for joint development and for TF coil manufacture, as part of the process control. 11 FSJS tests are conducted in total. FSJS tests were conducted with assistance from a test faculty in the National Institute for Fusion Science as reported in a previous paper. All FSJS tests successfully satisfied the requirement of resistance less than 3 nΩ at 2 T. Additionally, the TF coil joints are subjected to cyclic electromagnetic force and warm-up/cool-down during the ITER operation. The authors investigated the joint performance for the above mentioned influence. The results showed no degradation in the joint resistance. Thus, the TF joint developed in Japan was qualified successfully.}, title = {Results of All ITER TF Full-Size Joint Sample Tests in Japan}, volume = {31}, year = {2021} }