摘要: A combination of a Medical Gantry and Patient Positioning System is required to direct particle therapy beam supine patient from variety angles. The requirements direction size for precision treatment result in stringent criteria the magnetics mechanical structure gantry. In this paper large gantries ion will be discussed. energies up beyond 250 MeV have been designed, constructed are being planned. alignment discussed compared with actual performance where available. optics also amongst different gantry designs.
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