论文标题
CSR唤醒表达式具有两个弯曲磁铁和多转型ERL CBETA的仿真结果
CSR wake expressions with two bending magnets and simulation results for the multi-turn ERL, CBETA
论文作者
论文摘要
本文由有关相干同步辐射（CSR）的两个主要部分组成。第一部分将两个粒子相互作用的CSR理论从一个弯曲磁体系统的系统扩展到两个弯曲磁体，在该系统中，唤醒可以从第一个到第二个漏磁体。新理论与既定的仿真代码BMAD都很吻合。本文的第二部分介绍了CBETA上的CSR模拟结果，Cornell BNL能量恢复林纳克（ERL）测试加速器，其中磁体彼此之间如此接近，并且新的扩展理论变得很重要。 CBETA是第一个具有超导射频（SRF）加速腔和固定场交流梯度（FFA）光束线的多转移ERL。模拟表明，企业社会责任导致相位空间稀释，随着束电荷和再循环的数量增加，它变得越来越重要。正在研究减轻CSR效应的潜在方法，包括增加真空室屏蔽和增加的束长度。
This paper consists of two main parts regarding Coherent Synchrotron Radiation (CSR). The first part extends the CSR theory of two particle interaction from a system of one bending magnet to two bending magnets, where the wake can leak from the first to the second. The new theory agrees well with the established simulation code Bmad. The second part of the paper presents the CSR simulation results on CBETA, the Cornell BNL Energy-Recovery-Linac (ERL) Test Accelerator, in which the magnets are so close to each other and the new extended theory becomes important. CBETA is the first multi-turn ERL with Superconducting Radio Frequency (SRF) accelerating cavities and a Fixed Field Alternating gradient (FFA) beamline. Simulations show that CSR causes phase space dilution that becomes more significant as the bunch charge and the number of recirculation passes increase. Potential ways to mitigate the CSR effects, including adding vacuum chamber shielding and increasing bunch length, are being investigated.
