Study and Development of the Superconducting Conductor for the Grenoble Hybrid 
Magnet

Pugnat, P.; Berriaud, C.; Fazilleau, P.; Hervieu, B.; Joss, W.; Oberli, L.; Mayri, C.; Pfister, R.; Ronayette, L.; Xiao, H.

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Study and Development of the Superconducting Conductor for the Grenoble Hybrid Magnet

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Joss, W.
High Magnetic Field Laboratory, Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;

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Citation

Pugnat, P., Berriaud, C., Fazilleau, P., Hervieu, B., Joss, W., Oberli, L., et al. (2012). Study and Development of the Superconducting Conductor for the Grenoble Hybrid Magnet. IEEE Transactions on Applied Superconductivity, 22(3): 6001604.

Cite as: https://hdl.handle.net/21.11116/0000-000E-C29C-7

Abstract

To produce a continuous magnetic field of at least 8.5 T in a 1.1 m cold bore diameter, the superconducting outsert of the Grenoble Hybrid magnet is based on the novel development of a Nb-Ti/Cu Rutherford Cable On Conduit Conductor (RCOCC) cooled to 1.8 K by a bath of superfluid helium pressurized at atmospheric pressure. The main results of the conductor studies and development are presented after a brief introduction to the specificity of hybrid magnets, namely the electromagnetic couplings between resistive and superconducting coils. Results obtained with short samples of conductor are reviewed including the measurements of the elastic limit, AC losses, stability and critical current. The final specification of the RCOCC is presented highlighting the proposed method for the industrialization of the insertion process of the Rutherford cable on the hollow Cu-Ag stabilizer as well as its validation phase on short samples.