Critical current measurements on Nb3Sn conductors for the NED project

A. den Ouden, T. Boutboul, D. Pedrini, V. Previtali, L. Quettier, G. Volpini

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The Next European Dipole (NED) project is a EU funded program aiming at the realization of a 15 T accelerator-type of Nb3Sn dipole magnet. The objective of NED phase one is developing high performance Nb3Sn conductor in collaboration with European industry. The envisaged Rutherford type of cable consists of about 40 superconducting strands exhibiting a noncopper critical current density of 1500 A/mm2 at 4.2 K and 15 T. In the frame of conductor development, adequate critical current measurements in terms of accuracy and reproducibility should be ensured to qualify the ambitious strands produced. Therefore, a NED working group focuses at the establishment and implementation of appropriate and standardized procedures for sample preparation and mounting, critical current measurement, data analysis and reporting. A cross-calibration program between the institutes involved has been initiated by exchanging samples of Nb3Sn conductor from a single billet for critical current measurements, prepared at each institute. The experimental results of this program and the conclusive procedures for NED critical current measurements are presented and discussed
Original languageUndefined
Pages (from-to)1265-
Number of pages4
JournalIEEE transactions on applied superconductivity
Issue number2
Publication statusPublished - 2006


  • METIS-233512
  • IR-74541
  • EC Grant Agreement nr.: FP6/506395

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