Design Study of a 250 MeV Isochronous Cyclotron for Proton Therapy
IEEE Transactions Applied Superconductivity(2016)
摘要
In this paper, the magnetic field design of a superconducting fixed-frequency isochronous cyclotron with four spiral sectors for proton therapy was performed. The basic parameters of the isochronous cyclotron magnet and its characteristics are described. Several magnet sectors were designed during the iteration process to achieve an isochronous magnetic field. The result of 3-D magnetic field simulation using OPERA-3D and the analysis of the designed magnetic field are presented. A special geometry was introduced into the sector gap to achieve the isochronous condition, and the spiral angle was adjusted to control the vertical focusing parameter. The equilibrium orbits were checked for the designed magnetic field, and a single particle tracking simulation was performed with CYCLONE code.
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关键词
cyclotrons,magnetic fields,radiation therapy,superconducting magnets,3D OPERA,3D magnetic field simulation,CYCLONE code,isochronous cyclotron design study,isochronous cyclotron magnet,isochronous magnetic field,magnet sector,proton therapy,single particle tracking simulation,spiral sector,Isochronous cyclotron,proton therapy,superconducting magnet
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