Selective passive shielding and the Faraday bracelet

Bidinosti, C. P.; Hayden, M. E.
October 2008
Applied Physics Letters;10/27/2008, Vol. 93 Issue 17, p174102
Academic Journal
We describe a general approach for the design of passive conducting structures that preferentially shield the ac magnetic field produced by a specific coil geometry. We demonstrate the utility of selective passive shielding with the Faraday bracelet, an open-access shield for saddle-shaped rf coils. Our data also corroborate the poorly known fact that effective shielding can occur when the ratio of shield thickness to skin depth is much less than unity.


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