Energy modulation of a cyclotron beam
First Claim
Patent Images
1. A radiation therapy system comprising:
- a cyclotron that outputs a charged particle beam;
a first apparatus adapted to receive and decelerate said charged particle beam to produce a reduced energy charged particle beam, said first apparatus comprising a radio frequency structure;
a second apparatus adapted to receive and accelerate said charged particle beam to produce an increased energy charged particle beam, said second apparatus comprising a radio frequency structure; and
a set of switching dipoles adapted to receive and direct said reduced energy charged particle beam and said increased energy charged particle beam.
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Abstract
In various embodiments, a radiation therapy system can include a cyclotron that outputs a charged particle beam. In addition, the radiation therapy system can include an apparatus to receive the charged particle beam from the cyclotron. The apparatus decelerates or further accelerates the charged particle beam to produce a reduced or increased energy charged particle beam. The apparatus can include a radio frequency structure.
75 Citations
20 Claims
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1. A radiation therapy system comprising:
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a cyclotron that outputs a charged particle beam; a first apparatus adapted to receive and decelerate said charged particle beam to produce a reduced energy charged particle beam, said first apparatus comprising a radio frequency structure; a second apparatus adapted to receive and accelerate said charged particle beam to produce an increased energy charged particle beam, said second apparatus comprising a radio frequency structure; and a set of switching dipoles adapted to receive and direct said reduced energy charged particle beam and said increased energy charged particle beam. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method comprising:
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generating a charged particle beam with a cyclotron; directing said charged particle beam to a first apparatus or a second apparatus; if said first apparatus receives said charged particle beam, decelerating said charged particle beam with said first apparatus to produce a reduced energy charged particle beam, said first apparatus comprising a radio frequency structure; if said second apparatus receives said charged particle beam, accelerating said charged particle beam with said second apparatus to produce an increased energy charged particle beam, said second apparatus comprising a radio frequency structure; and directing said reduced energy charged particle beam or said increased energy charged particle beam with a set of switching dipoles. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A radiation therapy system comprising:
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an isochronous cyclotron that outputs a substantially fixed energy charged particle beam; a decelerating apparatus adapted to receive and decelerate said substantially fixed energy charged particle beam to produce a reduced energy charged particle beam, said decelerating apparatus comprising a radio frequency structure; an accelerating apparatus adapted to receive and accelerate said substantially fixed energy charged particle beam to produce an increased energy charged particle beam, said accelerating apparatus comprising a radio frequency structure; and a set of switching dipoles adapted to receive and direct said reduced energy charged particle beam and said increased energy charged particle beam to a nozzle. - View Dependent Claims (17, 18, 19, 20)
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Specification