小型医用回旋加速器工程化、标准化技术研究

目前，中国原子能科学研究院已研发出适用于PET的小型回旋加速器CYCIAE-14，为适应医院单独使用及即时药物配送中心的需求，本文对CYCIAE-14加速器开展了工程化、标准化研究：将离子源和注入线由安装于加速器上方改为下方，使加速器实现自屏蔽结构；主励磁线圈由原来几十路水电接头改为两路，提高可靠性；所有电源采用工程化设计，减小电源体积，实现紧凑、使用便捷、信号控制快速传输的功能；主真空统一采用冷泵，保证真空室的洁净度；所有线缆布置规范化、工程化；水路管道标准化、接头快捷、统一；生产靶采用大体积、高效率结构，实现国产化。并在上述工程化、标准化技术研究与实践的基础上，制定、颁布了国标GB/T 34127-2017，为我国核医学“一县一科”的普及发展起助推作用。

Technology Research on Engineering and Standardization of Small Medical Cyclotron

At present, a small medical cyclotron of 400 μA/14 MeV for PET, CYCIAE-14, was developed in China Institute of Atomic Energy (CIAE). To satisfy the requirement of hospital use lonely and radioisotopes drug distribution center, some engineering and standardization researches on the CYCIAE-14 cyclotron were carried out, such as the ion source and injection line were changed from the top to the bottom of the accelerator for the self-shielding using in the workshop, the cyclotron main coils were changed from dozens of water cooling pipe connections to two paths to improve reliability, all the power supplies used engineering design to reduce the size and get convenient and fast signal control transmission, main vacuum used cryopump to ensure the cleanliness of vacuum chamber, all the cooling water pipes layout was standardized, and the liquid target was large volume and high efficiency structure. Based on the above engineering and standardization technology research, the national standard GB/T 34127—2017 was formulated and promulgated, which will promote the popularization and development of nuclear medicine in China.