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Radiation therapy systems and methods for delivering doses to a target volume

  • US 9,855,445 B2
  • Filed: 04/01/2016
  • Issued: 01/02/2018
  • Est. Priority Date: 04/01/2016
  • Status: Active Grant
First Claim
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1. A radiation therapy system, comprising:

  • an accelerator that accelerates particles in a beam;

    a nozzle that receives the beam of particles downstream of the accelerator, the nozzle configured to affect energies of the particles in the beam to create a first adjusted beam that delivers a first dose with a first Spread Out Bragg Peak (SOBP) along a first target line segment in a target volume and to create a second adjusted beam that delivers a second dose with a second SOBP along a second target line segment in the target volume, wherein the second target line segment is displaced from the first target line segment; and

    a focusing magnet along the path of the beam that adjusts the energies of the particles in the beam to vary sizes of spots where the beam intersects a layer of the target volume.

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