Performance tests of prototype high-field HTS coils in grenoble

Yasuyuki Miyoshi, Arnaud Badel, Xavier Chaud, Tara Benkel, Benjamin Vincent, Pascal Tixador, Julien Marpaud, Francois Debray, Thibault Lécrevisse, Mélanie Devaux, Philippe Fazilleau, Jean Michel Rey

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


Longitudinal and transverse quench propagation tests were performed at the Laboratoire National des Champs Magnetiques Intenses (LNCMI) high-field test facility on instrumented double pancake coils fabricated by CEA-Saclay using co-wound high-temperature superconductor (HTS) tapes. Energy deposited on an embedded heater initiated a quench and its subsequent propagations. Following the resulting thermomechanical analysis, a conductor design with stacked HTS tapes co-wound with stabilizers was conceived. A ten-turn demonstrator racetrack coil has been fabricated from the stacked HTS conductor with an aim to investigate the operation margin of an HTS coil in a background magnetic field misaligned from the coil axis as expected for the operating condition of an accelerator magnet insert. A test setup with a high current capacity up to 3 kA and angular variability that utilizes a room-temperature 376-mm-bore 10-T resistive magnet at LNCMI in Grenoble has been built. The performances and operation margin of the racetrack coil were investigated.

Original languageEnglish
Article number6949612
JournalIEEE Transactions on Applied Superconductivity
Issue number3
Publication statusPublished - 2015 Jun 1
Externally publishedYes


  • HTS coils
  • HTS quench propagation
  • High-field magnet
  • High-temperature superconductors (HTS)

ASJC Scopus subject areas

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


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