摘要: 武威医用重离子加速器是目前世界上最紧凑的重离子加速器治癌装置，同步环周长小至56.1 m，其中很多关键元件的安装定位精度要求达到亚毫米量级，四极透镜的定位精度要求0.1 mm。结合激光跟踪仪的特点和测量学知识通过三维控制网及多重坐标系的转换，探索了一种在元件自身坐标系下调节准直的方法，提高了准直安装的工作效率，使得最后所有的元件安装各向误差均控制在0.1 mm以内，其结果优于该装置的精度要求，使得同步环在短时间内顺利调束成功，从而验证了同步环准直测量的可靠性与准确性。

Wuwei Heavy ion medical machine (HIMM) is the most compact accelerator facility for heavy ion therapy in the world,which has a circumference about 56.1 m.The alignment accuracy of many components of the machine should be submillimeter level.For example,the positioning accuracy of quadrupoles should be within 0.1 mm according to design target.With the combination of laser tracker and surveying knowledge,we develop a method that adjusts and collimates elements under the elements themselves coordinates via three-dimensional control network and the transformation of multiple coordinates to improve the efficiency of installation alignment.By this way,the deviation of each direction from all elements is under 0.1 mm and the result is better than the design target,which leads to the successful commission of Wuwei HIMM.Consequently,the feasibility of this method developed is verified.