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Magnetic flux density distribution in the air gap of a ferromagnetic core with superconducting blocks: three-dimensional analysis and experimental NMR results

2015-12Journal article Restricted access
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dc.contributor.authorRoque, António
dc.contributor.authorSousa, Duarte M.
dc.contributor.authorMargato, Elmano
dc.contributor.authorMachado, Vítor Malo
dc.contributor.authorSebastião, Pedro J.
dc.contributor.authorMarques, G. D.
dc.date.accessioned2016-02-24T15:12:07Z
dc.date.available2016-02-24T15:12:07Z
dc.date.issued2015-12
dc.description.abstractThe design of magnetic cores can be carried out by taking into account the optimization of different parameters in accordance with the application requirements. Considering the specifications of the fast field cycling nuclear magnetic resonance (FFC-NMR) technique, the magnetic flux density distribution, at the sample insertion volume, is one of the core parameters that needs to be evaluated. Recently, it has been shown that the FFC-NMR magnets can be built on the basis of solenoid coils with ferromagnetic cores. Since this type of apparatus requires magnets with high magnetic flux density uniformity, a new type of magnet using a ferromagnetic core, copper coils, and superconducting blocks was designed with improved magnetic flux density distribution. In this paper, the designing aspects of the magnet are described and discussed with emphasis on the improvement of the magnetic flux density homogeneity (Delta B/B-0) in the air gap. The magnetic flux density distribution is analyzed based on 3-D simulations and NMR experimental results.pt_PT
dc.identifier.citationROQUE, António; [et al.]Magnetic flux density distribution in the air gap of a ferromagnetic core with superconducting blocks: three-dimensional analysis and experimental NMR results. IEEE Transactions on Applied Superconductivity. ISSN. 1051-8223. Vol. 5, N.º 6 (2015), pp. 1-9pt_PT
dc.identifier.doi10.1109/TASC.2015.2483599pt_PT
dc.identifier.issn1051-8223
dc.identifier.issn1558-2515
dc.identifier.urihttp://hdl.handle.net/10400.21/5728
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherIEEE-Institute Electrical Electronics Engineers INCpt_PT
dc.relation.ispartofseries4301609
dc.relation.publisherversionhttp://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=7283571&tag=1pt_PT
dc.subjectFast field cycling (FFC)pt_PT
dc.subjectFringing effectpt_PT
dc.subjectHomogeneity; Magnetic corept_PT
dc.subjectMagnetic uniformitypt_PT
dc.subjectNuclear magnetic resonance (NMR)pt_PT
dc.subjectSuperconductors (SCs)pt_PT
dc.titleMagnetic flux density distribution in the air gap of a ferromagnetic core with superconducting blocks: three-dimensional analysis and experimental NMR resultspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage9
oaire.citation.issue6pt_PT
oaire.citation.startPage1
oaire.citation.volume5pt_PT
person.familyNameMargato
person.givenNameElmano
person.identifier.ciencia-id2F12-3295-B091
person.identifier.orcid0000-0002-8601-9145
person.identifier.scopus-author-id6505972972
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication9f983bef-f0ef-4660-b6e9-e9beebaf6acc
relation.isAuthorOfPublication.latestForDiscovery9f983bef-f0ef-4660-b6e9-e9beebaf6acc

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