TY - JOUR
T1 - Operational status of the superconducting system for LHD
AU - Mito, Toshiyuki
AU - Nishimura, Arata
AU - Yamada, Shuichi
AU - Imagawa, Shinsaku
AU - Takahata, Kazuya
AU - Yanagi, Nagato
AU - Chikaraishi, Hirotaka
AU - Tamura, Hitoshi
AU - Maekawa, Ryuji
AU - Motojima, Osamu
PY - 2003/6
Y1 - 2003/6
N2 - Large Helical Device (LHD) is a heliotron-type experimental fusion device which has the capability of confining current-less and steady-state plasma. The primary feature on the engineering aspect of LHD is using superconducting (SC) coils for magnetic confinement: two pool boiling helical coils (H1, H2) and three pairs of forced-flow poloidal coils (IV, IS, OV). These coils are connected to the power supplies by SC bus-lines. Five plasma experimental campaigns have been performed successfully in four years from 1998. The fifth operation cycle started in August 2001 and finished in March 2002. We have succeeded to obtain high plasma parameters such as 10 keV of electron temperature, 5 keV of ion temperature and beta value of 3.2%. The operational histories of the SC coils, the SC bus-lines and the cryogenic system have been demonstrating high reliability of the large scale SC system. The operational status and the results of device engineering experiments are summarized.
AB - Large Helical Device (LHD) is a heliotron-type experimental fusion device which has the capability of confining current-less and steady-state plasma. The primary feature on the engineering aspect of LHD is using superconducting (SC) coils for magnetic confinement: two pool boiling helical coils (H1, H2) and three pairs of forced-flow poloidal coils (IV, IS, OV). These coils are connected to the power supplies by SC bus-lines. Five plasma experimental campaigns have been performed successfully in four years from 1998. The fifth operation cycle started in August 2001 and finished in March 2002. We have succeeded to obtain high plasma parameters such as 10 keV of electron temperature, 5 keV of ion temperature and beta value of 3.2%. The operational histories of the SC coils, the SC bus-lines and the cryogenic system have been demonstrating high reliability of the large scale SC system. The operational status and the results of device engineering experiments are summarized.
KW - Fusion
KW - Large helical device (LHD)
KW - Large scale
KW - Superconducting coils
UR - http://www.scopus.com/inward/record.url?scp=0042466235&partnerID=8YFLogxK
U2 - 10.1109/TASC.2003.812741
DO - 10.1109/TASC.2003.812741
M3 - Conference article
AN - SCOPUS:0042466235
SN - 1051-8223
VL - 13
SP - 1464
EP - 1467
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
IS - 2 II
T2 - 2002 Applied Superconductivity Conference
Y2 - 4 August 2002 through 9 August 2002
ER -