由串列升级工程部研制的医用回旋加速器的主磁铁和主真空系统已安装并调试完成,在此基础上,对已有机械设计进行了以下改进。1)医用回旋加速器对磁场均匀性有很高的要求,而决定磁场均匀性的关键技术在于磁极材料以及加工安装精度的一致性。目前,医用回旋加速器的磁场测量工作已完成,分析测量结果,加速 The main magnet and main vacuum system of the medical cyclotron developed by the serial upgrading engineering department have been installed and debugged. Based on this, the following improvements have been made to the existing mechanical design. 1) The medical cyclotron has high requirements on the uniformity of the magnetic field. The key technology that determines the uniformity of the magnetic field lies in the consistency of the magnetic pole materials and the machining and installation accuracy. At present, the medical cyclotron magnetic field measurement has been completed, the analysis of measurement results, acceleration