Author/Authors :
Mito، نويسنده , , T. and Sagara، نويسنده , , A. and Imagawa، نويسنده , , S. Narita-Yamada، نويسنده , , S. and Takahata، نويسنده , , K. and Yanagi، نويسنده , , N. and Chikaraishi، نويسنده , , H. and Maekawa، نويسنده , , R. and Iwamoto، نويسنده , , A. and Hamaguchi، نويسنده , , S. and Sato، نويسنده , , M. and Noda، نويسنده , , N. and Yamauchi، نويسنده , , K. and Komori، نويسنده , , A. and Motojima، نويسنده , , O.، نويسنده ,
Abstract :
Since the foundation of National Institute for Fusion Science (NIFS) in 1989, the primary mission of the applied superconductivity and cryogenic researches has been focused on the development of the large helical device (LHD): the largest fusion experimental apparatus exclusively utilizing superconducting technologies. The applied superconductivity and cryogenics group in NIFS was organized to be responsible for this activity. As a result of extensive research activities, the construction of LHD was completed in 1997. Since then, the LHD superconducting system has been demonstrating high availability of more than 97% during eight years operation and it keeps proving high reliability of large-scale superconducting systems. This paper describes the extensive activities of the applied superconductivity and cryogenic researches in NIFS during and after the development of LHD and the fundamental researches that aim at realizing a helical-type fusion reactor.
Keywords :
National Institute for Fusion Science (NIFS) , Large Helical Device (LHD) , Applied superconductivity , cryogenic , Helical reactor , Fusion , Force free helical reactor (FFHR)
