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基于中物院通红外自由电子激光装置，采用一种注重横向问题的整体数值模拟方法进行了计算．并将结果与随机抽样的计算结果作了比较，发现两者差异较大，自由电子激光的性能强烈地依赖于电子束性质．采用这种整体数值模拟方法对于较准确地计算和预计自由电子激光器诸光学参量是必要的．
Based on Zhongwuyuan Infrared Free Electron Laser Device, an overall numerical simulation method focusing on lateral problems was used to calculate. The results are compared with the results of random sampling and found that the difference between the two is quite large. The performance of the free electron laser strongly depends on the nature of the electron beam. The use of such a holistic numerical simulation method is necessary to more accurately calculate and predict the optical parameters of the free electron laser.