摘要：A proton therapy facility based on a linac injector and a slow cycling synchrotron is proposed. To achieve effective treatment of cancer, a scanning gantry is required. The flexible transmission of beam and high beam position accuracy are the most basic requirements for a gantry. The designed gantry optics and scanning system are presented. Great efforts are put into studying the sensitivity of the beam position in the isocenter to the element misalignments. It shows that quadrupole shift makes the largest contribution and special attention should be paid to it.

摘要：离子治疗装置gantry超导线圈的高精度成型问题的研究,可以一台小尺寸斜绕线螺线管型超导四极磁体样机为目标,开展倾斜螺线管型超导线圈的三维设计、复杂线圈成型设备研制、超导线圈成型工艺研究和超导线圈样机性能测试等工作,旨在验证三维线圈高精度成型设备系统及工艺方案的可行性,为倾斜螺线管型线圈应用于离子治疗装置积累宝贵经验。通过分析测试数据,确认小尺寸倾斜螺线管型四极磁体制作工艺符合预期目标。

摘要：A conception design of the Advanced Proton Therapy Facility （APTF） has been carried out. The system intentionally employs a slow-cycling synchrotron with a maximum energy of 250 MeV, two rotating gantries and two fixed beam nozzles for the treatment. In this paper, we try to compare the strength and weaknesses between the two treatment methods： the beam spreading and the pencil beam scanning. The application of the pencil beam scanning method and the double-scattering method together with the related nozzle design at APTF is also given. The simulation results of employing the double-scattering method have been given during the preliminary design.