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Supershielding: Confinement of Magnetic Fields

Robert W. Brown and Shmaryu M. Shvartsman
Phys. Rev. Lett. 83, 1946 – Published 6 September 1999
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Abstract

In open-shield systems, we have derived current conditions that lead to remarkable magnetic-field confinement, which we call “supershielding.” The freedom to vary both primary and shield currents is important in solving the conditions. Solutions leading to very effective shielding are illustrated by the simple system of two parallel flat strips. Generalizations include other geometries, internal shielding, and electric-field confinement. An industrial coil design serves as a reference for practical issues. We discuss mathematical limits, via a “seesaw” approach, to “perfect shielding.”

  • Received 5 March 1999

DOI:https://doi.org/10.1103/PhysRevLett.83.1946

©1999 American Physical Society

Authors & Affiliations

Robert W. Brown and Shmaryu M. Shvartsman

  • Department of Physics, Case Western Reserve University, Cleveland, Ohio 44106-7079

See Also

A Super Field Shield

Phys. Rev. Focus 4, 13 (1999)

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Issue

Vol. 83, Iss. 10 — 6 September 1999

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