Test results of two ITER TF conductor short samples using high current density Nb

P. Bruzzone, M. Bagnasco, D. Ciazynski, A. Della Corte, A. Di Zenobio, R. Herzog, Y. Ilyin, B. Lacroix, L. Muzzi, A. Nijhuis, B. Renard, E. Salpietro, L.S. Richard, B. Stepanov, S. Turtù, A. Vostner, R. Wesche, L. Zani, R. Zanino

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Two short length samples have been prepared and tested in SULTAN to benchmark the performance of high current density, advanced Nb3Sn strands in the large cable-in-conduit conductors (CICC) for ITER. The cable pattern and jacket layout were identical to the Toroidal Field Model Coil Conductor (TFMC), tested in 1999. The four conductor sections used strands from OST, EAS, OKSC and OCSI respectively. The Cu:non-Cu ratio was 1 for three of the new strands, compared to 1.5 in the TFMC strand. The conductors with OST and OKSC strands had one Cu wire for two Nb3Sn strands, as in TFMC. In the EAS and OCSI conductors, all the 1080 strands in the cable were Nb3Sn. A dc test under relevant load conditions and a thermal-hydraulic campaign was carried out in SULTAN. The CICC performance was strongly degraded compared to the strand for all the four conductors. The current sharing temperature at the ITER TF operating conditions (jop= 286 A/mm2, B = 11.15 T) was lower than requested by ITER. © 2002 IEEE.
Original languageEnglish
Pages (from-to)1370 - 1373
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Issue number2
Publication statusPublished - Jun 2007
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

Bruzzone, P., Bagnasco, M., Ciazynski, D., Della Corte, A., Di Zenobio, A., Herzog, R., ... Zanino, R. (2007). Test results of two ITER TF conductor short samples using high current density Nb. IEEE Transactions on Applied Superconductivity, 17(2), 1370 - 1373. https://doi.org/10.1109/TASC.2007.898504