衍射极限储存环束流注入物理方案的设计及模拟  

Design and simulation of beam injection scheme fordiffraction limited storage ring

作　　者：王佩宁 杨鹏辉 刘刚文 白正贺 李为民[1] Wang Peining;Yang Penghui;Liu Gangwen;Bai Zhenghe;Li Weimin(National Synchrotron Radiation Laboratory,University of Science and Technology of China,Hefei 230029,China)

机构地区：[1]中国科学技术大学国家同步辐射实验室,合肥230029

出　　处：《强激光与粒子束》2023年第12期89-96,共8页High Power Laser and Particle Beams

基　　金：国家自然科学基金青年基金项目(12005226)。

摘　　要：衍射极限储存环(DLSR)作为第四代同步辐射光源,正得到世界各国的大力发展和建设。如何在尽量减小对存储束流扰动情况下,高效率地将束流注入到储存环中,是衍射极限储存环设计与运行中的重要课题之一。传统的局部凸轨注入法有着很长的历史,应用广泛且技术成熟,但是传统凸轨注入法会对存储束流造成扰动,且衍射极限储存环的动力学孔径较小,这给传统凸轨注入法的应用带来了困难。为了解决这些问题,改进了一些传统的离轴注入法,提出并发展了一些在轴的注入方法。合肥先进光源(HALF)是规划建设中的衍射极限储存环光源,基于HALF储存环的物理设计方案,设计并应用了几种离轴或在轴的注入方案,通过粒子跟踪和模拟的方法验证了它们的可行性并研究了注入效率等物理问题,并对模拟结果进行了讨论和总结。As the fourth synchrotron radiation light source,diffraction-limited storage rings(DLSRs)are beingvigorously developed and constructed around the world.How to efficiently inject beam into the storage ring whileminimizing the disturbance to the stored beam is one of the important issues in the design and operation of DLSRs.The conventional bump injection which has a long history is widely used and has mature technology.However,itdisturbs the stored beam and the small dynamic aperture of DLSRs,which makes it difficult to apply the conventionalbump injection on DLSRs.To solve these problems,some conventional off-axis injection method have been improvedand several on-axis injection methods have been proposed and developed.Hefei Advanced Light Facility(HALF)is aDLSR under planning and construction.Based on the physical design of the HALF storage ring,a couple of off-axis oron-axis injection schemes have been designed and applied.Their feasibility has been verified through particle trackingand simulation,and physical issues such as injection efficiency have been studied.Discussion of results andconclusion are also presented.

关 键 词：衍射极限储存环 离轴注入 在轴注入 动力学孔径 合肥先进光源 

分 类 号：TL501[核科学技术—核技术及应用]