Adjusting energy of a particle beam
First Claim
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1. A particle accelerator comprising:
- a coil to provide a magnetic field to a cavity;
a particle source to provide a plasma column to the cavity;
a voltage source to provide a radio frequency (RF) voltage to the cavity to accelerate particles from the plasma column, the magnetic field causing particles accelerated from the plasma column to move orbitally within the cavity;
an enclosure containing an extraction channel to receive the particles accelerated from the plasma column and to output the particles from the cavity; and
an actuator to change an energy level of the particles received by the extraction channel by physically changing a position of the coil.
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Abstract
An example particle accelerator includes a coil to provide a magnetic field to a cavity; a particle source to provide a plasma column to the cavity; a voltage source to provide a radio frequency (RF) voltage to the cavity to accelerate particles from the plasma column, where the magnetic field causes particles accelerated from the plasma column to move orbitally within the cavity; an enclosure containing an extraction channel to receive the particles accelerated from the plasma column and to output the received particles from the cavity; and a structure arranged proximate to the extraction channel to change an energy level of the received particles.
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Citations
25 Claims
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1. A particle accelerator comprising:
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a coil to provide a magnetic field to a cavity; a particle source to provide a plasma column to the cavity; a voltage source to provide a radio frequency (RF) voltage to the cavity to accelerate particles from the plasma column, the magnetic field causing particles accelerated from the plasma column to move orbitally within the cavity; an enclosure containing an extraction channel to receive the particles accelerated from the plasma column and to output the particles from the cavity; and an actuator to change an energy level of the particles received by the extraction channel by physically changing a position of the coil. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system comprising:
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a magnet comprising one or more coils to conduct current to generate a magnetic field, the magnetic field to affect output of radiation to a target, the magnet being configured for movement relative to the target; and one or more actuators that are controllable to move the one or more coils physically based on the movement of the magnet. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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21. A particle accelerator comprising:
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superconducting coils for conducting current to generate a magnetic field; a cryostat for holding the superconducting coils, and for maintaining the superconducting coils at superconducting temperatures; magnetic structures adjacent to the cryostat, the magnetic structures at least partly defining a cavity; a particle source to provide a plasma column to the cavity; a voltage source to provide a radio frequency (RF) voltage to the cavity to accelerate particles from the plasma column within the cavity, the magnetic field causing particles accelerated from the plasma column to move orbitally within the cavity; an extraction channel to receive the particles from the cavity, and to direct the particles for output from the particle accelerator; and one or more actuators that are controllable to move the cryostat physically. - View Dependent Claims (22, 23, 24, 25)
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Specification