×

Magnetic field control method and apparatus used in conjunction with a charged particle cancer therapy system

  • US 8,637,818 B2
  • Filed: 04/26/2012
  • Issued: 01/28/2014
  • Est. Priority Date: 05/22/2008
  • Status: Active Grant
First Claim
Patent Images

1. An apparatus for providing a uniform magnetic field, comprising:

  • a first magnet, said first magnet comprising an incident surface;

    a non-magnetic isolating layer, said isolating layer comprising a thickness of at least about 0.05 mm and less than about one-half millimeter, said isolating layer comprising a first side and a second side;

    a magnetic penetration layer, said magnetic penetration layer comprising an inner surface and an outer surface, said incident surface of said first magnet affixed to said first side of said isolating layer, said second side of said isolating layer affixed to said inner surface of said magnetic penetration layer,wherein said thickness of said non-magnetic isolating layer provides a distance to even out and blend non-uniform properties of said first magnet,wherein said surface polish of said foil yields the uniform magnetic field.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×