Bortot, L. ; Mentink, M. ; Petrone, C. ; Van Nugteren, J. ; Kirby, G. ; Pentella, M. ; Verweij, A. ; Schöps, S. (2020)
Numerical analysis of the screening current-induced magnetic field in the HTS insert dipole magnet Feather-M2.1-2.
In: Superconductor Science and Technology, 33 (12)
doi: 10.1088/1361-6668/abbb17
Artikel, Bibliographie
Dies ist die neueste Version dieses Eintrags.
Kurzbeschreibung (Abstract)
Screening currents are field-induced dynamic phenomena which occur in superconducting materials, leading to persistent magnetization. Such currents are of importance in ReBCO tapes, where the large size of the superconducting filaments gives rise to strong magnetization phenomena. In consequence, superconducting accelerator magnets based on ReBCO tapes might experience a relevant degradation of the magnetic field quality in the magnet aperture, eventually leading to particle beam instabilities. Thus, persistent magnetization phenomena need to be accurately evaluated. In this paper, the 2D finite element model of the Feather-M2.1-2 magnet is presented. The model is used to analyze the influence of the screening current-induced magnetic field on the field quality in the magnet aperture. The model relies on a coupled field formulation for eddy current problems in time-domain. The formulation is introduced and verified against theoretical references. Then, the numerical model of the Feather-M2.1-2 magnet is detailed, highlighting the key assumptions and simplifications. The numerical results are discussed and validated with available magnetic measurements. A satisfactory agreement is found, showing the capability of the numerical tool in providing accurate analysis of the dynamic behavior of the Feather-M2.1-2 magnet.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2020 |
| Autor(en): | Bortot, L. ; Mentink, M. ; Petrone, C. ; Van Nugteren, J. ; Kirby, G. ; Pentella, M. ; Verweij, A. ; Schöps, S. |
| Art des Eintrags: | Bibliographie |
| Titel: | Numerical analysis of the screening current-induced magnetic field in the HTS insert dipole magnet Feather-M2.1-2 |
| Sprache: | Englisch |
| Publikationsjahr: | 2020 |
| Ort: | Bristol |
| Verlag: | IOP Publishing |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Superconductor Science and Technology |
| Jahrgang/Volume einer Zeitschrift: | 33 |
| (Heft-)Nummer: | 12 |
| Kollation: | 15 Seiten |
| DOI: | 10.1088/1361-6668/abbb17 |
| Zugehörige Links: | |
| Kurzbeschreibung (Abstract): | Screening currents are field-induced dynamic phenomena which occur in superconducting materials, leading to persistent magnetization. Such currents are of importance in ReBCO tapes, where the large size of the superconducting filaments gives rise to strong magnetization phenomena. In consequence, superconducting accelerator magnets based on ReBCO tapes might experience a relevant degradation of the magnetic field quality in the magnet aperture, eventually leading to particle beam instabilities. Thus, persistent magnetization phenomena need to be accurately evaluated. In this paper, the 2D finite element model of the Feather-M2.1-2 magnet is presented. The model is used to analyze the influence of the screening current-induced magnetic field on the field quality in the magnet aperture. The model relies on a coupled field formulation for eddy current problems in time-domain. The formulation is introduced and verified against theoretical references. Then, the numerical model of the Feather-M2.1-2 magnet is detailed, highlighting the key assumptions and simplifications. The numerical results are discussed and validated with available magnetic measurements. A satisfactory agreement is found, showing the capability of the numerical tool in providing accurate analysis of the dynamic behavior of the Feather-M2.1-2 magnet. |
| Freie Schlagworte: | high-temperature superconductors, screening currents, magnetic fields, magnetization, finite-element analysis, superconducting coils, accelerator magnets |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 600 Technik, Medizin, angewandte Wissenschaften > 621.3 Elektrotechnik, Elektronik |
| Fachbereich(e)/-gebiet(e): | 18 Fachbereich Elektrotechnik und Informationstechnik 18 Fachbereich Elektrotechnik und Informationstechnik > Institut für Teilchenbeschleunigung und Theorie Elektromagnetische Felder > Computational Electromagnetics 18 Fachbereich Elektrotechnik und Informationstechnik > Institut für Teilchenbeschleunigung und Theorie Elektromagnetische Felder |
| Hinterlegungsdatum: | 07 Mär 2024 10:29 |
| Letzte Änderung: | 07 Mär 2024 10:29 |
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Numerical analysis of the screening current-induced magnetic field in the HTS insert dipole magnet Feather-M2.1-2. (deposited 05 Mär 2024 10:51)
- Numerical analysis of the screening current-induced magnetic field in the HTS insert dipole magnet Feather-M2.1-2. (deposited 07 Mär 2024 10:29) [Gegenwärtig angezeigt]
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