高平均功率FEL的标度律
Ｓcale law of the high power free electron laser
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摘要: 讨论了设计高平均功率康普顿型自由电子激光（FEL）装置的基本思路与相关的标度律。强调了除电子束平均流强外，能量抽取率是装置实现高平均功率的决定性因素。这个量的标度律基本上由摇摆器参数（周期数）单独确定，与摇摆器周期长度和强度无关，与激光波长无关。指出如无能量回收系统，按目前光阴极电子枪+超导射频加速结构装置可预期的电子束团100 pC/bunch，平均电流为mA情况下，15MeV电子束能给出的激光平均输出功率为百瓦量级。
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关键词:
- 自由电子激光的标度律 /
- 平均功率
Abstract: The scale law and design procedure of the high power FEL are discussed. It is pointed out that the extraction efficiency which is the critical factor of the output power besides the power of the electron beam is uniquely determined by the number of wiggler period and has almost nothing to do with other parameters of FEL such as period and normalized strength of wiggler and laser wavelength.-
Key words:
- the scale law of fel /
- average power
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