Particle beam scanning
First Claim
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1. A particle therapy system comprising:
- a synchrocyclotron to output a particle beam;
a scanning system to receive the particle beam from the synchrocyclotron and to move the particle beam across at least part of an irradiation target; and
one or more processing devices to control the scanning system to move the particle beam across the at least part of the irradiation target according to an irregular grid pattern, where at least some spots of the particle beam in the irregular grid pattern are not along lines located at regular locations along the at least part of the irradiation target.
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Abstract
An example particle therapy system includes: a synchrocyclotron to output a particle beam; a magnet to affect a direction of the particle beam to scan the particle beam across at least part of an irradiation target; scattering material that is configurable to change a spot size of the particle beam, where the scattering material is down-beam of the magnet relative to the synchrocyclotron; and a degrader to change an energy of the beam prior to output of the particle beam to the irradiation target, where the degrader is down-beam of the scattering material relative to the synchrocyclotron.
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Citations
31 Claims
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1. A particle therapy system comprising:
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a synchrocyclotron to output a particle beam; a scanning system to receive the particle beam from the synchrocyclotron and to move the particle beam across at least part of an irradiation target; and one or more processing devices to control the scanning system to move the particle beam across the at least part of the irradiation target according to an irregular grid pattern, where at least some spots of the particle beam in the irregular grid pattern are not along lines located at regular locations along the at least part of the irradiation target. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 24, 25, 28, 30)
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11. A particle therapy system comprising:
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a synchrocyclotron to output a particle beam; a magnet to move the particle beam across at least part of an irradiation target; and one or more processing devices to control the magnet to move the particle beam across the at least part of the irradiation target according to an irregular grid pattern and to control an energy of the particle beam between scanning of different cross-sections of the irradiation target, where at least some spots of the particle beam in the irregular grid pattern are not along lines located at regular locations along the at least part of the irradiation target. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 26, 27, 29, 31)
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Specification