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Active return system

  • US 8,791,656 B1
  • Filed: 05/31/2013
  • Issued: 07/29/2014
  • Est. Priority Date: 05/31/2013
  • Status: Active Grant
First Claim
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1. A particle accelerator comprising:

  • a magnet to generate a magnetic field, the magnet comprising first superconducting coils to pass current in a first direction to thereby generate the first magnetic field, the first magnetic field being at least 4 Tesla (T);

    an active return system comprising second superconducting coils, each of the second superconducting coils surrounding, and being concentric with, a corresponding first superconducting coil, the second superconducting coils for passing current in a second direction that is opposite to the first direction to thereby generate a second magnetic field having a magnetic field of at least 2.5 T, the second magnetic field having a polarity that is opposite to a polarity of the first magnetic field; and

    a single structure on which at least one first superconducting coil and corresponding second superconducting coil are mounted.

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