欧洲 XFEL 基于束流的波荡器轨迹对准
Beam based undulator trajectory alignment at European XFEL
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中文总结 AI 辅助
欧洲 XFEL 研究波荡器轨迹对准直线问题,采用基于电子束和光子束的方法并结合基于性能的逐步优化,确保约 250 米长波荡器系统大部分长度轨迹成直线,利于高保真 SASE 及非标准运行模式。
中文摘要 AI 辅助
将波荡器轨迹精确对准直线是高保真自放大自发辐射(SASE)运行的前提条件,这反过来也能实现如自种子注入或双色运行等非标准运行模式。在欧洲 XFEL,基于电子束和光子束的方法与基于性能的逐步优化相结合,以确保在约 250 米长的波荡器系统的大部分长度上轨迹处于直线上。
英文摘要
Precise alignment of the undulator trajectory onto a straight line is a per-requisite for high fidelity SASE operation, which in turn also enables non-standard operation modes like self-seeding or two-color operation. At European XFEL electron and photon beam-based method are combined with a step-by-step performance-based optimization to ensure that the trajectory is on a straight line over most of the length of the about 250 m long undulator system.