用于高平均功率FEL的DC-SC光阴极注入器
DC-SC photocathode injector for high average power FEL
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摘要: 为获得用于高平均功率自由电子激光（FEL）的高平均流强电子束，设计了一种新型的DC-SC光阴极注入器。该注入器由皮尔斯直流引出结构、1+1/2超导腔和同轴功率耦合系统组成，可以提供高品质、CW模式或高占空比的电子束。对DC-SC光阴极注入器进行了优化设计和束流动力学研究。模拟和优化结果表明DC-SC光阴极注入器完全可以用于高平均功率自由电子激光。模型腔实验验证了理论模拟的可靠性。Abstract: To obtain high average current electron beams for high average power Free Electron Laser (FEL), a DC-SC photocathode injector is designed. It consists of DC extraction gap, 1+1/2 superconducting cavity and coaxial input system. High quality electron beams of CW mode or high duty factor can be obtained. The optimization of the injector and simulation of beam dynamics have been done. Model cavity experiments showed the correctness of the simulation.
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Key words:
- injector /
- superconducting cavity /
- fel
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