Application of the ENEA Joint Concept to NbTi CIC Conductors

• Published in: IEEE transactions on applied superconductivity Vol. 19; no. 3; pp. 1544 - 1547
• Main Authors: Di Zenobio, A., Vetrella, U.B., Corato, V., della Corte, A., Giorgi, G., Maierna, F., Messina, G., Muzzi, L., Turtu, S.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: New York, NY IEEE 01.06.2009; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Applied sciences; Cable shielding; CICC; Coils; Conductors; Copper; Dipoles; Electric connection. Cables. Wiring; Electrical engineering. Electrical power engineering; Electrical junctions; Electromagnets; Electronics; Exact sciences and technology; General (including economical and industrial fields); Imaging devices; joint; Mechanical cables; NbTi; Niobium base alloys; Niobium compounds; Optimization; Power cables; Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices; Shape; Simulation; Superconducting cables; Superconductivity; superconductors; Testing; Titanium compounds; Various equipment and components; {\rm Nb}_{3}{\rm Sn}; Thermal stress; joint; Electric stress; Power system economics; Optimization method; NbTi; Optimization; Superconducting materials; Nb; Coding; Pricing; Dipole; CICC; Power markets; Electrical conductor; Negative bias temperature instability; superconductors; Imager; Charge injection device; Compact design; Superconducting coils; Pipe cable; Layout; Manufacturing process; Economic aspect; Sn; Reliability; Electrical simulation
• ISSN: 1051-8223; 1558-2515
• DOI: 10.1109/TASC.2009.2018786

In superconducting coils for fusion applications, the cable-in-conduit (CIC) conductor is the most adopted solution. ENEA reported last year about a newly developed compact joint, successfully tested for Nb 3 Sn conductors in a configuration suitable for the EFDA Dipole which is currently in construction phase. The main advantages of this new concept are: low room occupancy, low price and easiness of manufacturing process. In the present paper, new results coming from the characterization of NbTi joint samples are presented, suggesting new applications for this innovative junction. A joint layout optimization study by means of an electrical simulation code is included as well.