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利用 Madey’s theorem计算了电磁驻波摆动器的自由电子激光的小信号增益 .结果表明它与普通静磁摆器自由电子激光的增益具有相似表达形式 .
The small-signal gain of free electron laser of electromagnetic standing wave oscillator is calculated by Madey’s theorem.The result shows that it has the similar expression with the gain of common static magnet free-electron laser.