The elementary principle of the medical cyclotron is analyzed.Medical cyclotron which is mainly used to produce the positron emitting medicament in PET/CT system is introduced.

• 主要应用拉摩定律及等时性回旋加速器的理论,对回旋加速器的基本原理进行分析,介绍了专门用于PET/CT大型诊断系统中为生产正电子药物的医用回旋加速器的基本特点与结构。