Magnetic and Mechanical Design of a 15-T Large Aperture Dipole Magnet for Cable Testing
| Autor: | Xabier Sarasola, Soren Prestemon, Francesca Cau, Gijs de Rijk, GianLuca Sabbi, Paolo Ferracin, Joseph Minervini, Douglas Martins Araujo, Luca Bottura, Pierluigi Bruzzone, Alfredo Portone, P. Testoni |
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| Rok vydání: | 2019 |
| Předmět: |
General Physics
Rutherford cable Materials science Aperture Ignition coil Mechanical engineering Bioengineering Materials Engineering Condensed Matter Physics test facilities 01 natural sciences Electronic Optical and Magnetic Materials Stress (mechanics) Dipole Affordable and Clean Energy Dipole magnet Electromagnetic coil Magnet 0103 physical sciences Niobium-tin superconducting magnets Electrical and Electronic Engineering 010306 general physics |
| Zdroj: | IEEE Transactions on Applied Superconductivity, vol 29, iss 5 |
| ISSN: | 2378-7074 1051-8223 |
| Popis: | A large aperture Nb 3 Sn dipole is proposed to replace the magnet assembly of EDIPO, which was irreversibly damaged in 2016. The goal is to generate a background field of 15 T at 4.2 K in a clear aperture of approximately 100×150 mm 2 and over a uniform length of 1000 mm in order to test superconducting cables for both fusion and high-energy physics applications. The magnet features a block-type coil design wound with wide Rutherford cable (two alternative coil cross sections are considered) and supported by a mechanical structure based on keys-and-bladders technology. In the end regions, the coils tilt up (flare) through a hard-way bend of the cables to provide room for the test well, following a layout already adopted in the LBNL HD2 and CERN-CEA FRESCA2 magnets. The two considered coil design alternatives aim at minimizing the mechanical stress in the coil windings. One coil pack design makes the use of two double pancake coils per pole, whereas the other alternative features three double pancakes per pole. Both design options are presented focusing on the results of numerical computations carried out with finite-element models to investigate peak stresses in the coils during room-temperature pre-loading, cool down, and powering. |
| Databáze: | OpenAIRE |
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