The EuCARD2 Future Magnets Program for Particle Accelerator High-Field Dipoles: Review of Results and Next Steps

Lucio Rossi* (Corresponding Author), Arnaud Badel, Hugues Bajas, Marta Bajko, Amalia Ballarino, Christian Barth, Ulrich Betz, Luca Bottura, Francesco Broggi, Antonella Chiuchiolo, Marc Dhalle, Maria Durante, Philippe Fazilleau, Jerome Fleiter, Peng Gao, Wilfried Goldacker, Anna Kario, Glyn Kirby, E. Haro, J. HimbeleC. Lorin, J. Murtomaki, Jeroen Van Nugteren, Carlo Petrone, Gijs De Rijk, J. Ruuskanen, Carmine Senatore, Marco Statera, Antti Stenvall, Pascal Tixador, Yifeng Yang, Alexander Usoskin, Nikolaj Zangenberg

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

18 Citations (Scopus)

Abstract

The EuCARD2 collaboration aims at the development of a 10 kA-class superconducting, high current density cable suitable for accelerator magnets, to be tested in small coils and magnets capable to deliver 3-5 T when energized in stand-alone mode, and 15-18 T when inserted in a 12-13 T background magnet. REBCO tape, assembled in a Roebel cable, was selected as conductor. The developed REBCO tape has reached a record engineering critical current density, at 4.2 K and 18 T of 956 A/mm2. Roebel cable carried up to 13 kA at 20 K when tested in a small coil (FeatherM0.4). Then a first dipole magnet, wound with two low-grade Roebel cables of 25 m each, was assembled and tested. The dipole reached the short sample critical current of 6 kA generating more than 3 T central field at about 5.7 K, with indications of good current transfer among cable strands and of relatively soft transition. The construction of a costheta dipole is also discussed. Eucard2 is reaching its objective and is continuing with the H2020-ARIES program aiming at doubling the Je at 20 T to obtain 6 T as standalone and 18 T as insert in a high field facility.

Original languageEnglish
Article number4001810
Number of pages10
JournalIEEE transactions on applied superconductivity
Volume28
Issue number3
DOIs
Publication statusPublished - Apr 2018

Keywords

  • accelerator magnets
  • HTS conductor
  • HTS dipoles

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