低能电子储存环lattice设计  

Lattice design for a low energy electron storage ring

作　　者：王琳[1] 徐宏亮[1] 冯光耀[1] 李为民[1] 刘祖平[1] 

机构地区：[1]中国科学技术大学国家同步辐射实验室,安徽合肥230029

出　　处：《中国科学技术大学学报》2007年第4期446-450,共5页JUSTC

基　　金：国家自然科学基金(10575096)资助

摘　　要：描述了一台低能电子储存环的lattice设计,包括线性光学参数设计和非线性动力学孔径优化.该储存环有两种运行模式,在低发射度模式下束流发射度接近软X射线衍射限制发射度,光源亮度远高于合肥光源,同时用于安装插入元件的直线节数目较多;在等时性模式下线性动量紧缩因子连续可调,能够较方便地调节束团长度.The lattice design for a low energy electron storage ring was described in detail, including linear optical parameters and nonlinear dynamic aperture. There are two operation mode of this ring. First, with low emittance lattice configuration, beam emittance can be decreased approaching the diffraction limit of soft X-ray, which is very helpful to enhance brilliance, aiid the number of straight section for insertion device is greater than that of current Hefei light source. Secondly, with isochronous mode, the momentum compaction factor can be varied continuously, which is essential for bunch length adjustment.

关 键 词：储存环 lattice参数 发射度 动量紧缩因子 动力学孔径 

分 类 号：TL501.2[核科学技术—核技术及应用]