Magnetic shims to alter magnetic fields

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United States of America Patent

PATENT NO 9185789
APP PUB NO 20140094371A1
SERIAL NO

14039073

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An example particle accelerator includes a coil to provide a magnetic field to a cavity; a cryostat comprising a chamber for holding the coil, where the coil is arranged in the chamber to define an interior region of the coil and an exterior region of the coil; magnetic structures adjacent to the cryostat, where the magnetic structures have one or more slots at least part-way therethrough; and one or more magnetic shims in one or more corresponding slots. The one or more magnetic shims are movable to adjust a position of the coil by changing a magnetic field produced by the magnetic structures.

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Patent Owner(s)

  • MEVION MEDICAL SYSTEMS, INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gall, Kenneth P Harvard, US 18 472
Sobczynski, Stanislaw P Boxford, US 3 128
Van, der Laan Jan Danvers, US 9 309
Zwart, Gerrit Townsend Durham, US 28 770

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