A 3.5 Tesla Laboratory Electromagnet

We report the design and construction of a laboratory electromagnet utilizing HTS coils in an iron yoke with a magnetic flux density of 3.5 Tesla in a 50-mm air-gap. With continuing improvement in the performance of HTS 'BSCCO' wire, several niche HTS magnet applications have become viable...

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Bibliographic Details
Main Authors: Pooke, D M, Chamritski, V, Gibson, S, Fee, M, King, T, Staines, M P, Flower, N E, Buckley, R G
Format: Conference Proceeding
Language:English
Online Access:Get full text
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Summary:We report the design and construction of a laboratory electromagnet utilizing HTS coils in an iron yoke with a magnetic flux density of 3.5 Tesla in a 50-mm air-gap. With continuing improvement in the performance of HTS 'BSCCO' wire, several niche HTS magnet applications have become viable at current wire prices. In this instance, the HTS conductor confers the advantages of high field strength combined with compact size and energy efficiency, in an electromagnet of a format suitable for many materials' characterization techniques, such as vibrating-sample magnetometry, for which the current magnet will be employed. The magnet employs four HTS coils, with a total of 1.6 km of BSCCO wire, which are conduction cooled using a single-stage Gifford-McMahon cryocooler, delivering approximately 25 W of cooling power at the target 35 K operating temperature; HTS current leads are utilized to minimize heat leak to the cryogenic environment.
ISSN:0094-243X
DOI:10.1063/1.1774759