Effects of a uniform magnetic field superposing a space-period magnetic field on the gain of the free-electron laser were analysed and calculations were carried out.

分析了在空间周期磁场的摆动器上，再迭加轴向均匀磁场后对自由电子激光器增益特性的影响，并进行了数值计算。

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This paper presents a digital method to calculate the EM response of a three-dimen-tional conducting permeable body which is subjected to an alternating magnetic dipole field in free space.

本文提出一种关于自由空间三维导电导磁体在谐变磁偶极场中电磁响应的数值计算方法。

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