DocumentCode :
1071084
Title :
The CEA JOSEFA test facility for subsize conductors and joints
Author :
Decool, P. ; Libeyre, P. ; Van Houtte, D. ; Ciazynski, D. ; Zani, L. ; Nicollet, S. ; Serries, J.P. ; Cloez, H. ; Bej, S.
Author_Institution :
CEA, Saint Paul Lez Durance, France
Volume :
14
Issue :
2
fYear :
2004
fDate :
6/1/2004 12:00:00 AM
Firstpage :
1473
Lastpage :
1476
Abstract :
The JOSEFA (joint subsize experiment facility) experimental test facility, installed at CEA/Cadarache is devoted to perform tests at cryogenic temperature on subsize superconducting conductor and joint samples under parallel or transverse magnetic field. This facility was built in 1993 to investigate the performances of joints of cable-in-conduit conductors at subsize level and further upgraded in the framework of European tasks. The samples of hairpin type using subsize ITER conductors are cooled by a circulation of supercritical helium in a temperature range from 5 to 15 K and tested at a maximum current up to 10 kA. Two different helium bath cooled magnets allow to apply DC or AC transverse magnetic field up to 3.5 T or longitudinal magnetic field up to 7.5 T. A sliding system with a 240 mm stroke on the sample cryostat allows to test separately in the same sample either the conductor or the joint performances. The paper reports on how, through the conductor and joint development tasks, the facility performances were successfully increased and tested. The ITER TFMC joints using Nb3Sn conductors were first developed on this facility. The last developments, performed on the ITER PF NbTi conductors and joints proved this facility to be a versatile and useful tool for superconducting magnet developments and showed the interest of possible upgrading to finalize conductor design.
Keywords :
Tokamak devices; conductors (electric); cooling; cryostats; data acquisition; electromagnets; fusion reactor design; liquid helium; superconducting materials; test facilities; 5 to 15 K; AC transverse magnetic field; CEA JOSEFA; DC transverse magnetic field; He; ITER PF; ITER TFMC joints; ITER conductors; Nb3Sn; Nb3Sn conductors; NbTi; NbTi conductors; NbTi joints; cable-in-conduit conductors; cryogenic temperature; cryostat; experimental test facility; helium bath cooling; joint performance; magnets; parallel magnetic field; subsize joint subsize; superconducting conductor; superconducting magnet; supercritical helium; Conductors; Cryogenics; Helium; Magnetic fields; Performance evaluation; Superconducting cables; Superconducting magnets; Temperature; Test facilities; Testing; Facility; joints; superconducting conductor;
fLanguage :
English
Journal_Title :
Applied Superconductivity, IEEE Transactions on
Publisher :
ieee
ISSN :
1051-8223
Type :
jour
DOI :
10.1109/TASC.2004.830657
Filename :
1325076
Link To Document :
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