A new hybrid protection system for high-field superconducting magnets

E. Ravaioli, V.I. Datskov, G. Kirby, H.H.J. ten Kate, A.P. Verweij

Research output: Contribution to journalArticleAcademicpeer-review

25 Citations (Scopus)


The new generation of high-field superconducting accelerator magnets poses a challenge concerning the protection of the magnet coil in the case of a quench. The very high stored energy per unit volume requires a fast and efficient quench heating system in order to avoid damage due to overheating. A new protection system for superconducting magnets is presented, comprising a combination of a novel coupling-loss induced quench (CLIQ) system and conventional quench heaters. CLIQ can provoke a very fast transition to the normal state in coil windings by introducing coupling loss and thus heat in the coil's conductor. The advantage of the hybrid protection system is a global transition, resulting in a much faster current decay, a significantly lower hot-spot temperature, and a more homogeneous temperature distribution in the magnet's coil.
Original languageEnglish
Article number044023
Number of pages7
JournalSuperconductor science and technology
Issue number4
Publication statusPublished - 2014


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