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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Ainslie, Md
King's College London
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2023Record field in a 10 mm-period bulk high-temperature superconducting undulatorcitations
- 2023Record field in a 10 mm-period bulk high-temperature superconducting undulator
- 2022Simulation of mechanical stresses in reinforced REBaCuO ring bulks during pulsed-field magnetization
- 2020Numerical simulation of flux jump behavior in REBaCuO ring bulks with an inhomogeneous Jc profile during pulsed-field magnetizationcitations
- 2020Composite stacks for reliable > 17 T trapped fields in bulk superconductor magnets
- 2019Influence of Inner Diameter and Height of Ring-Shaped REBaCuO Bulks on Trapped Field and Mechanical Stress during Field-Cooled Magnetizationcitations
- 2019Design Optimization of a Hybrid Trapped Field Magnet Lens (HTFML)citations
- 2019Composite stacks for reliable > 17 T trapped fields in bulk superconductor magnetscitations
- 2017Numerical modelling of iron-pnictide bulk superconductor magnetizationcitations
- 2017Numerical modelling of iron-pnictide bulk superconductor magnetisation
- 2016Pulsed Field Magnetization of Single-Grain Bulk YBCO Processed from Graded Precursor Powders
- 2015Pulsed Field Magnetization of Single-Grain Bulk YBCO Processed from Graded Precursor Powderscitations
- 2014Computation of the field in an axial gap, trapped-flux type superconducting electric machinecitations
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article
Design Optimization of a Hybrid Trapped Field Magnet Lens (HTFML)
Abstract
The concept of a hybrid trapped field magnet lens (HTFML) was recently proposed by the authors, which consists of a trapped field magnet (TFM) cylinder exploiting the “vortex pinning effect,” combined with a superconducting bulk magnetic lens exploiting the “diamagnetic shielding effect.” This HTFML can generate, within its bore, a magnetic field higher than the applied magnetic field, even after external field decreases to zero. In this paper, a design optimization of the inner GdBaCuO magnetic lens within the GdBaCuO TFM cylinder was carried out using numerical simulations based on the finite element method, in order to maximize the concentrated magnetic field. The HTFML with an optimized shape and size achieved a concentrated magnetic field of Bc = 5.6 and 12.8 T at the center of the lens for applied magnetic fields of Bapp = 3 and 10 T, respectively. A maximum tensile stress of +135 MPa exists in the outer GdBaCuO TFM cylinder during the magnetizing process for Bapp = 10 T, which exceeds the fracture strength of the bulk. This result suggests that mechanical reinforcement is necessary to avoid mechanical fracture under such high magnetic field conditions.