Centres d'excellences Equipements d'excellence

Plateforme pour l'utilisation des grands aimants superconducteurs


Mots-clés : Experimental platform providing high magnetic field and flux; High field hybrid magnet; Large superconducting coil; Nb-Ti/Cu superconducting conductor; Cryogenics for pressurized superfluid helium; Bitter and polyhelix resistive magnets.


The hybrid magnet of LNCMI-Grenoble combines superconducting and resistive technologies. It is a unique modular platform offering to the scientific community various possibilities of maximum field values and useful warm bore ranging from 43 T / 34 mm dia. with 24 MW electrical power down to 9 T/ 800 mm dia. with the superconducting coil alone. The objectives of LaSUP based on a collaboration with CEA-Saclay was to design, build, install, commission and operate the large superconducting coil based on Nb-Ti/Cu and superfluid He technologies as well as the mechanical, electrical and cryogenic infrastructures necessary for operation. Complements to funding were obtained from CNRS, FEDER and region Rhône-Alpes. The total weight of the hybrid magnet is 54 tons with 24 tones to cool down to 1.8 K. The design including detailed studies, the construction and commissioning phases, have been thoroughly validated after height technical reviews organized with a committee of international experts. The cryogenic plant for the liquid He production (150 l/h) and the power supply with dump resistors to extract up to 86 MJ of stored energy within the superconducting coil were installed. The assembly line of the superconducting conductor was internalized at LNCMI for the industrial production. The other equipment including the cryogenic satellite (9 m height, 2.2 m dia., 10 tons), the cryostat (10 m3) and the superconducting coil, were produced in industry and delivered to LNCMI. The electronic components for protection, control and monitoring of the superconducting coil designed and assembled by CEA and LNCMI were integrated. Despite the covid-19 crisis, the commissioning of the cryogenic satellite connected to the cryogenic plant has been successfully performed in 2020 at LNCMI. The integration and final assembly of all equipment have been realized and validated with a first successful commissioning test run in 2022, which will be pursued up to the nominal magnetic field in 2023.


L'auteur de ce résumé est le coordinateur du projet, qui est responsable du contenu de ce résumé. L'ANR décline par conséquent toute responsabilité quant à son contenu.

Informations générales

Acronyme projet : LASUP
Référence projet : 10-EQPX-0035
Région du projet : Auvergne-Rhône-Alpes
Discipline : 2 - SMI
Aide PIA : 6 994 243 €
Début projet : février 2011
Fin projet : décembre 2024

Coordinateur du projet : Charles SIMON
Email : charles.simon@lncmi.cnrs.fr

Consortium du projet

Etablissement coordinateur : Université Grenoble Alpes
Partenaire(s) : CNRS Alpes (Grenoble)

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