According to the characteristic of the wiggler magnetic field in this amplifier, proper magnetic field input method is chosen in the process of PIC simulated research.

• 针对该放大器中摇摆器磁场的特点,选择了适当的磁场输入形式,顺利实现了对该结构摇摆器自由电子激光放大器的粒子模拟研究。