Compensating effect of the coherent synchrotron radiation in bunch compressors
Compensating effect of the coherent synchrotron radiation in bunch compressors
复制标题
DOI：
10.1103/physrevstab.16.060704
复制
发表时间：
2013-06
影响因子：
--
通讯作者：
Y. Jing;Y. Hao;V. Litvinenko
中科院分区：
文献类型：
--
作者：
Y. Jing;Y. Hao;V. Litvinenko
高增益自由电子激光器（FEL）的典型束团压缩要求很大的压缩比。通常，这种压缩沿着束传输线分布在多个阶段。然而，对于由能量回收直线加速器（ERL）驱动的高增益自由电子激光，压缩必须在位于束线末端的单个强压缩器中完成，否则电子束将受到ERL弧中的相干同步辐射（CSR）的严重影响。在这样的方案中，来自强压缩器的CSR会大大降低电子束的质量。在本文中，我们提出了一个聚束压缩器，将限制CSR对电子束质量的影响，我们的设计。我们讨论了我们的研究结果，从这样的压缩机，并详细说明其潜在的自由电子激光驱动的多程ERL开发的电子相对论重离子对撞机。
Typical bunch compression for a high-gain free-electron laser (FEL) requires a large compression ratio. Frequently, this compression is distributed in multiple stages along the beam transport line. However, for a high-gain FEL driven by an energy recovery linac (ERL), compression must be accomplished in a single strong compressor located at the beam line’s end; otherwise the electron beam would be affected severely by coherent synchrotron radiation (CSR) in the ERL’s arcs. In such a scheme, the CSR originating from the strong compressors could greatly degrade the quality of the electron beam. In this paper, we present our design for a bunch compressor that will limit the effect of CSR on the e-beam’s quality. We discuss our findings from a study of such a compressor, and detail its potential for an FEL driven by a multipass ERL developed for the electron-Relativistic Heavy Ion Collider.