MAGNETIC SHIMS TO ALTER MAGNETIC FIELDS
First Claim
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1. A particle accelerator comprising:
- a coil to provide a magnetic field to a cavity;
a cryostat comprising a chamber for holding the coil, the coil being 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, the magnetic structures having 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 being movable to adjust a position of the coil by changing a magnetic field produced by the magnetic structures.
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Abstract
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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Citations
35 Claims
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1. A particle accelerator comprising:
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a coil to provide a magnetic field to a cavity; a cryostat comprising a chamber for holding the coil, the coil being 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, the magnetic structures having 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 being movable to adjust a position of the coil by changing a magnetic field produced by the magnetic structures. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An electromagnet comprising:
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a superconducting coil arranged in a substantially circular configuration to generate a magnetic field; magnetic structures adjacent to the superconducting coil, the magnetic structures having 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 being movable to adjust a position of the coil by changing a magnetic field produced by the magnetic structures. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A method of adjusting a position of a superconducting coil in an electromagnet, the method comprising:
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determining a rotational position associated with the electromagnet; and based on the rotational position, controlling a position of one or more magnetic shims in a magnetic structure proximate to the superconducting coil. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30)
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31. A particle accelerator comprising:
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a coil to provide a magnetic field to a cavity in which particles are accelerated; a cryostat comprising a chamber for holding the coil; magnetic structures adjacent to the cryostat, the magnetic structures having 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 being movable to adjust a magnetic field in the cavity in order to affect a particle orbit within the cavity. - View Dependent Claims (32, 33, 34, 35)
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Specification