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Design of magnets inside cylindrical superconducting shieldsThe design of magnets inside closed, cylindrical, superconducting shields is discussed. The Green function is given for the magnetic vector potential for cylindrically symmetric currents inside such a shield. The magnetic field everywhere inside the shield can be obtained from this function, which includes the effects of the induced shield currents exactly. The field is given for a thin solenoid as an example and the convergence of the series solution for this case is discussed. The shield can significantly reduce the strength and improve the homogeneity of a magnet. The improvement in homogeneity is of particular importance in the design of correction coils. These effects, and the maximum field on the shield, are examined for a typical solenoid. The results given are also useful, although not exact, for long shields with one or two open ends.
Document ID
19880040243
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Rigby, K. W.
(Stanford University CA, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1988
Publication Information
Publication: Review of Scientific Instruments
Volume: 59
ISSN: 0034-6748
Subject Category
Electronics And Electrical Engineering
Accession Number
88A27470
Funding Number(s)
CONTRACT_GRANT: JPL-957448
Distribution Limits
Public
Copyright
Other

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