@article{oai:repo.qst.go.jp:00077693,
 author = {Uto, Hiroyasu and Kakudate, Satoshi and Hiwatari, Ryoji and Someya, Yoji and Sakamoto, Yoshiteru and Asakura, Nobuyuki and Tokunaga, Shinsuke and Tobita, Kenji and Hiroyasu, Uto and Satoshi, Kakudate and Ryoji, Hiwatari and Yoji, Someya and Yoshiteru, Sakamoto and Nobuyuki, Asakura and Shinsuke, Tokunaga and Kenji, Tobita},
 issue = {B},
 journal = {Fusion Engineering and Design},
 month = {Sep},
 note = {JA DEMO selected the vertical maintenance scheme as the primary maintenance option. In order to improve reliability of Remote Handling (RH) and plant availability, update of in-vessel transferring mechanism of the segment, pipe unit structure on maintenance port were carried out. The RH equipment is composed of end-effectors (grippers) for the banana segment, a power manipulator, a telescopic guide and a carrier. The pipe structure in vertical maintenance port was updated considering the thermal expansion, easy handling (short maintenance time) and alignment of welding groove. Based on estimation of maintenance time, four works in parallel will be required for plant availability reachable for commercialization (>60%).},
 pages = {1583--1586},
 title = {Progress on reliability of remote maintenance concept for JA DEMO},
 volume = {146},
 year = {2019}
}