螺线管磁场缺陷对电子束横向温度的影响  

Influence of Magnetic Imperfection on Transerse Temperature of Electron Beam

作　　者：杨晓东[1] 宋明涛[1] 夏佳文[1] 张文志[1] 原有进[1] 魏宝文[1] 

机构地区：[1]中国科学院近代物理研究所,甘肃兰州730000

出　　处：《原子核物理评论》2001年第2期105-108,共4页Nuclear Physics Review

基　　金：国家重大科学工程 HIRFL-CSR项目

摘　　要：分析了直螺线管磁场缺陷的来源 ,考虑了电子束的空间电荷作用 ,采用数值方法模拟计算了磁场缺陷对电子束横向温度的影响 ,获得了电子冷却装置中直螺线管磁场的均匀性要求 .结果表明 ,当相对磁场缺陷小于 1× 1 0 -3时 。In order to obtain the tolerance requirement for the magnetic field homogeneity of the solenoids in electron cooling device, the source of the magnetic imperfection and its influence on the transverse temperature of electron beam were investigated by means of numerical simulation, and taking the space charge effect of electron beam into account. The calculated result shows that the influence of the imperfection of magnetic field will be negligible when the relative magnetic field perturbation is less than 1×10 -3 .

关 键 词：电子冷却 磁场误差 横向温度 螺线管 电子束 兰州重离子加速器 

分 类 号：TL56[核科学技术—核技术及应用]