Critical current measurements of the cable for the superconducting dipole prototypes for the Large Hadron Collider
- INFN, Milan (Italy)
- IFNF of Genoa, Genova (Italy)
- Europa Metalli-LMI, Firenze (Italy)
The specifications of the NbTi/Cu cable for the superconducting dipole of the LHC are very demanding: J{sub c} (non Cu) in excess of 1,000 A/mm{sup 2} at 8 tesla and 4.2 K, with filament diameter of 5--6 microns. One type of cable is composed of 26 strands with a required critical current at 8 T and 4.2 K of 13,000 A and the other one has 40 strands with I{sub c} at 6 T and 4.2 K of 15,500 A. In this paper the authors describe the results they obtained in an extensive campaign of I{sub c} measurements carried out both on cables and on strands, these last both in virgin state and extracted from cable. The reliability of extrapolation from strands I{sub c} to cable performance is discussed as well as the degradation due to a cross-over in the cable thin edge.
- OSTI ID:
- 32092
- Report Number(s):
- CONF-930926--
- Journal Information:
- IEEE Transactions on Magnetics, Journal Name: IEEE Transactions on Magnetics Journal Issue: 4Pt2 Vol. 30; ISSN IEMGAQ; ISSN 0018-9464
- Country of Publication:
- United States
- Language:
- English
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