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Investigations on NbTi superconducting racetrack coils under pulsed-current excitations

Abusaif, Falastine; Bernhard, Axel ORCID iD icon 1; Bründermann, Erik ORCID iD icon 1; Gancarcik, David; Glamann, Nicole; Grau, Andreas; Saez de Jauregui, David 2; Mueller, Anke-Susanne ORCID iD icon; Assmann, Ralph [Hrsg.]; McIntosh, Peter [Hrsg.]; Fabris, Alessandro [Hrsg.]; Bisoffi, Giovanni [Hrsg.]; Andrian, Ivan [Hrsg.]; Vinicola, Giulia [Hrsg.]
1 Institut für Beschleunigerphysik und Technologie (IBPT), Karlsruher Institut für Technologie (KIT)
2 Institut für Beschleunigerphysik und Technologie (IBPT)

Abstract:

One of the key issues in the technology of superconductors is the protection against quenches. When designing a superconductor as a magnet, a coil or even current leads, the design should be made such that the superconductor withstands all operational conditions as fast discharges, pulsed loads or even rapid transient background fields.
Computational modeling of pulsed-current characterization in a self-field NbTi racetrack sample coil has been performed using the finite element modelling software Opera as a step towards understanding the thermal and electromagnetic processes during a quench. The pulse was modelled to be generated by discharging a capacitor into an RLC circuit, which includes the NbTi racetrack coil as the sample under test. The coil was driven to the resistive state and the quench occurred by applying the pulse with a peak value exceeding the critical current of the sample coil.
This contribution presents the results obtained from investigating a pulsed NbTi coil in a model based on an electromagnetic analysis. In addition, a comparison to the theoretical expectations derived for the damped oscillations in the pulse-driving circuit is given. ... mehr


Verlagsausgabe §
DOI: 10.5445/IR/1000163592
Veröffentlicht am 31.10.2023
Originalveröffentlichung
DOI: 10.18429/JACoW-IPAC2023-WEPM070
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Beschleunigerphysik und Technologie (IBPT)
Publikationstyp Proceedingsbeitrag
Publikationsdatum 26.09.2023
Sprache Englisch
Identifikator ISBN: 978-3-95450-231-8
ISSN: 2673-5490
KITopen-ID: 1000163592
HGF-Programm 54.11.11 (POF IV, LK 01) Accelerator Operation, Research and Development
Erschienen in 14th International Particle Accelerator Conference (IPAC‘23), Venedig 7th - 12th May 2023
Veranstaltung 14th International Particle Accelerator Conference (IPAC 2023), Venedig, Italien, 07.05.2023 – 12.05.2023
Verlag JACoW Publishing
Seiten 3735-3738
Schlagwörter Accelerator Physics, mc7-accelerator-technology-and-sustainability - MC7: Accelerator Technology and Sustainability, mc7-t10-superconducting-magnets - MC7.T10: Superconducting Magnets
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