Gantry for medical particle therapy facility
First Claim
Patent Images
1. A particle therapy gantry for delivering a particle beam to a patient comprising:
- a beam tube having a curvature defining a particle beam path; and
a plurality of fixed field permanent magnets sequentially arranged along said beam tube for guiding the particle beam along said particle path, wherein said fixed field permanent magnets are arranged in a series of unit cells, each cell comprising two bending dipole magnets, a focusing quadrupole magnet and two defocusing quadrupole magnets, said bending dipole magnets performing the function of bending the particle beam along said particle beam path, said focusing quadrupole magnet performing the function of focusing the particle beam along said particle beam path and said defocusing quadrupole magnets performing the function of defocusing the particle beam along said particle beam path.
2 Assignments
0 Petitions
Accused Products
Abstract
A particle therapy gantry for delivering a particle beam to a patient includes a beam tube having a curvature defining a particle beam path and a plurality of fixed field magnets sequentially arranged along the beam tube for guiding the particle beam along the particle path. In a method for delivering a particle beam to a patient through a gantry, a particle beam is guided by a plurality of fixed field magnets sequentially arranged along a beam tube of the gantry and the beam is alternately focused and defocused with alternately arranged focusing and defocusing fixed field magnets.
55 Citations
17 Claims
-
1. A particle therapy gantry for delivering a particle beam to a patient comprising:
-
a beam tube having a curvature defining a particle beam path; and a plurality of fixed field permanent magnets sequentially arranged along said beam tube for guiding the particle beam along said particle path, wherein said fixed field permanent magnets are arranged in a series of unit cells, each cell comprising two bending dipole magnets, a focusing quadrupole magnet and two defocusing quadrupole magnets, said bending dipole magnets performing the function of bending the particle beam along said particle beam path, said focusing quadrupole magnet performing the function of focusing the particle beam along said particle beam path and said defocusing quadrupole magnets performing the function of defocusing the particle beam along said particle beam path. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A particle beam therapy system comprising:
-
a source of particles; an accelerator for accelerating the particles as a particle beam; an injector for transporting particles from said source to said accelerator; a patient treatment station including a rotatable gantry for delivering a particle beam to a patient, said gantry including a beam tube having a curvature defining a particle beam path and a plurality of fixed field permanent magnets sequentially arranged along said beam tube for guiding the particle beam along said particle path; and a beam transport system for transporting the accelerated beam from said accelerator to said patient treatment station, wherein said fixed field permanent magnets of said gantry are arranged in a series of unit cells, each cell comprising two bending dipole magnets, a focusing quadrupole magnet and two defocusing quadrupole magnets, said bending dipole magnets performing the function of bending the particle beam along said particle beam path, said focusing quadrupole magnet performing the function of focusing the particle beam along said particle beam path and said defocusing quadrupole magnets performing the function of defocusing the particle beam along said particle beam bath. - View Dependent Claims (11, 12, 13, 14, 15)
-
-
16. A particle therapy gantry for delivering a particle beam to a patient comprising:
-
a beam tube having a curvature defining a particle beam path; and a plurality of fixed field permanent magnets sequentially arranged along said beam tube for guiding the particle beam along said particle path, wherein each of said fixed field permanent magnets is a separate function magnet performing only one of a bending function, a focusing function and a defocusing function along said particle path.
-
-
17. A method for delivering a particle beam to a patient through a gantry comprising the steps of:
-
bending the particle beam with a plurality of fixed field permanent magnets sequentially arranged along a beam tube of the gantry, the particle beam traveling in said beam tube; alternately focusing and defocusing the particle beam traveling in said beam tube with alternately arranged focusing and defocusing fixed field permanent magnets; and
delivering said particle beam from said gantry to a patient, wherein said beam is strongly focused in both the horizontal and vertical planes,wherein said fixed field permanent magnets are arranged in a series of unit cells, each cell comprising two bending dipole magnets, a focusing quadrupole magnet and two defocusing quadrupole magnets, said bending dipole magnets performing the function of bending the particle beam along said particle beam path, said focusing quadrupole magnet performing the function of focusing the particle beam along said particle beam path and said defocusing quadrupole magnets performing the function of defocusing the particle beam along said particle beam path.
-
Specification