Fabrication and Results of the First MgB2 Round Coil Superferric Magnet at LASA

The LASA Laboratory (INFN, Milan) is working in the High Luminosity LHC program to develop, in collaboration with CERN, six different types of High Order corrector magnets. In this framework, in parallel with a conventional design of superferric magnets with LTS conductor, the LASA is focusing on th...

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Bibliographic Details
Published in:IEEE transactions on applied superconductivity 2020-06, Vol.30 (4), p.1-5
Main Authors: Mariotto, Samuele, Leone, Augusto, Paccalini, Antonio, Pasini, Alessandro, Pedrini, Danilo, Prioli, Marco, Quadrio, Mauro, Sorbi, Massimo, Statera, Marco, Todero, Maurizio, Valente, Riccardo
Format: Article
Language:English
Subjects:
Accelerator magnets: dipoles
Bend radius
Coils
Conductors
Configuration management
correctors
Inductance
Iron
Large Hadron Collider
Luminosity
magnesium boride wire
Magnesium compounds
magnet design and analysis techniques
Magnetomechanical effects
Magnets
Multipoles
Optimization
Prototypes
quadrupoles
quench protection
Saturation magnetization
Superconducting magnets
Superconductivity
Wires
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Summary:The LASA Laboratory (INFN, Milan) is working in the High Luminosity LHC program to develop, in collaboration with CERN, six different types of High Order corrector magnets. In this framework, in parallel with a conventional design of superferric magnets with LTS conductor, the LASA is focusing on the research of new superconducting materials which may have applications in particle accelerator magnets. To this purpose, LASA is developing a new type of superferric magnet suitable to arbitrary multipole order, called Round Coil Superferric Magnets (RCSM). The iron yoke shaped with an arbitrary number of poles is able to create the desired harmonic component using only one single round coil with a large bending radius suitable for very strain-sensitive superconductors. The electromagnetic design of a sextupole configuration of the magnet and the production of the first superconducting MgB 2 round coil prototype have been already presented. In this paper, we expose the optimization of the iron yoke and polar expansions assembly of the first magnet semi-module prototype. The results of the whole powering test are described in detail and the analysis of the magnetic performances are compared with those of classical superferric correctors.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2020.2972212