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CHARGED PARTICLE BEAM ACCELERATION AND EXTRACTION METHOD AND APPARATUS USED IN CONJUNCTION WITH A CHARGED PARTICLE CANCER THERAPY SYSTEM

  • US 20100006770A1
  • Filed: 07/06/2009
  • Published: 01/14/2010
  • Est. Priority Date: 05/22/2008
  • Status: Active Grant
First Claim
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1. An apparatus for tumor therapy using charged particles, the charged particles accelerated by a rounded corner polygon synchrotron, said synchrotron comprising:

  • a center; and

    a charged particle circulation beam path running;

    about said center;

    through straight sections; and

    through turning sections,wherein each of said turning sections comprises a plurality of bending magnets,wherein at least two of said plurality of bending magnets further comprise a magnetic field focusing section, said focusing section comprising;

    a geometry tapering from a first cross-sectional area to a second cross-sectional area, said second cross-sectional area comprising less than two-thirds of an area of said first cross-sectional area, said second cross-sectional area proximate said charged particle beam path.

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