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dc.contributor.authorGiunchi, Giovanni
dc.contributor.authorCoppi, Bruno
dc.date.accessioned2012-06-14T20:31:52Z
dc.date.available2012-06-14T20:31:52Z
dc.date.issued2010-06
dc.date.submitted2009-10
dc.identifier.issn1051-8223
dc.identifier.issn1558-2515
dc.identifier.otherINSPEC Accession Number: 11323405
dc.identifier.urihttp://hdl.handle.net/1721.1/71160
dc.description.abstractA hybrid solution is proposed for the IGNITOR research fusion machine by using of superconducting coils for some poloidal magnets, in association with high field copper magnets for the central solenoid and for the toroidal field coils. The choice to be made among the various superconductors is based on the materials performances in high magnetic field, on the mechanical strength of the conductors and on the cost of manufacturing large coils. In this study we analyze a coil based on MgB₂, a "medium temperature" superconducting material that we expect will avoid, in association with others high temperature superconductors, the use of liquid He in future machines. The external poloidal magnet, 5 m in diameter and subjected to a magnetic field of 5 T, represents a real test bench of the technical issues which should be addressed in the exploitation of the future fusion reactors. To fulfil the technical characteristics of the selected magnet we must optimize the fill factor of the superconducting MgB₂ wires, increasing the presently obtained 30% value. Accordingly, the effective current density in the superconducting wire should be of about 1500 A/mm[superscript 2] (@10 K, 5 T), a value which is compatible with the present best MgB₂ laboratory short wires, doped by C or SiC.en_US
dc.language.isoen_US
dc.publisherInstitute of Electrical and Electronics Engineersen_US
dc.relation.isversionofhttp://dx.doi.org/10.1109/TASC.2010.2043664en_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.sourceIEEEen_US
dc.titleMgB₂ Coil Options for Fusion Poloidal Magnetsen_US
dc.typeArticleen_US
dc.identifier.citationGiunchi, Giovanni, and Bruno Coppi. “MgB₂ Coil Options for Fusion Poloidal Magnets.” IEEE Transactions on Applied Superconductivity 20.3 (2010): 1610–1613. Web. ©2010 IEEE.en_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Physicsen_US
dc.contributor.approverCoppi, Bruno
dc.contributor.mitauthorCoppi, Bruno
dc.relation.journalIEEE Transactions on Applied Superconductivityen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dspace.orderedauthorsGiunchi, Giovanni; Coppi, Brunoen
dc.identifier.orcidhttps://orcid.org/0000-0002-4920-8617
mit.licensePUBLISHER_POLICYen_US


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