一、TRANSPORT程序的功能及其局限性TRANSPORT程序是一个采用一、二阶传输矩阵和束矩阵计算粒子运动轨迹和束包络的计算程序。所计算的系统包括漂移空间、两极磁铁、四极磁铁、六极磁铁、螺线管、行波加速段等。该程序能够处理束心位移、元件不准直和绕光轴旋转公差等问题。并且,能够自动进行系统优化设计,自动调整元件的参数以满足对系统在聚焦成象和象差修正方面的要求。 First, the function of the TRANSPORT program and its limitations TRANSPORT program is a use of a second-order transfer matrix and beam matrix calculation particle trajectory and beam envelope calculation program. The calculated system includes drift space, two-pole magnet, four-pole magnet, six-pole magnet, solenoid, traveling wave acceleration section and so on. The program handles issues such as beam center displacement, component misalignment, and rotation around the optical axis. And, the system can be optimized automatically design, automatic adjustment of component parameters to meet the system in focus imaging and aberration correction requirements.