论文标题
玛丽Xfel的常规和双C-Chicane对第一束压缩机方案的比较研究
Comparison study on first bunch compressor schemes by conventional and double C-chicane for MaRIE XFEL
论文作者
论文摘要
我们报告了我们在750 MEV处的第一阶段电子束压缩方案，使用传统和双C-Chicane用于开发的X射线游离电子激光器（XFEL），用于在Los Alamos国家实验室中的极端项目（Marie）项目中的物质辐射相互作用。 Compared to the performance of the conventional C-chicane bunch compressor, the double C-chicane scheme exhibits the capability of utilizing the transverse momentum shift induced by the coherent synchrotron radiation (CSR) in the second C-chicane to compensate that generated in the first C-chicane, resulting in a compressed electron bunch with minimized transverse momentum along the beam.还发现，可以设计双C-风琴方案，以便在压缩过程中明显更好地保留束发射。这对于玛丽XFEL的激光性能严重取决于保留超低束发射率，这是特别有益的。
We report our comparison study on the first stage electron bunch compression schemes at 750 MeV using a conventional and a double C-chicane for the X-ray free electron laser (XFEL) under development for the Matter-Radiation Interactions in Extremes (MaRIE) project at Los Alamos National Laboratory. Compared to the performance of the conventional C-chicane bunch compressor, the double C-chicane scheme exhibits the capability of utilizing the transverse momentum shift induced by the coherent synchrotron radiation (CSR) in the second C-chicane to compensate that generated in the first C-chicane, resulting in a compressed electron bunch with minimized transverse momentum along the beam. It is also found that the double C-chicane scheme can be designed to significantly better preserve the beam emittance in the course of the bunch compression. This is particularly beneficial for the MaRIE XFEL whose lasing performance critically depends on the preservation of the ultralow beam emittance.
