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Radiation therapy systems and methods

  • US 10,307,618 B2
  • Filed: 12/21/2017
  • Issued: 06/04/2019
  • Est. Priority Date: 04/01/2016
  • Status: Active Grant
First Claim
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1. A radiation therapy system, comprising:

  • an accelerator and beam transport system that generates a beam of particles, wherein the accelerator and beam transport system comprises focusing magnets along the path of the beam; and

    a nozzle operable for aiming the beam toward an object, wherein the nozzle comprises;

    scanning magnets operable for steering the beam toward different locations within the object; and

    a beam energy adjuster configured to adjust the beam by affecting energies of the particles in the beam, wherein the beam energy adjuster comprises a range modulator comprising a plurality of arms extending from a hub, the arms having non-uniform thicknesses, wherein the range modulator is operable to rotate about the hub allowing the beam to pass through at least one of the arms to place different thicknesses of material in the path of the beam to change the energies of at least a portion of the particles and achieve a Spread Out Bragg Peak.

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