重离子的束内散射  

Intrabeam Scattering in Heavy Ion Beam

作　　者：饶亦农[1] 原有进[1] 夏佳文[1] 魏宝文[1] 

机构地区：[1]中国科学院近代物理研究所

出　　处：《高能物理与核物理》1996年第5期430-437,共8页High Energy Physics and Nuclear Physics

摘　　要：本文在Ｂｊｏｒｋｅｎ和Ｍｔｉｎｇｗａ束内散射理论的基础上进一步推导出了束内散射率的普遍表达式，并将该表达式应用于ＨＩＲＦＬ—ＣＳＲ的磁铁结构（ｌａｔｔｉｃｅ），计算并得到了束流横向发射度和纵向动量散度随时间变化的规律，结果表明，束内散射不会成为ＣＳＲｌａｔｔｉｃｅ设计的障碍．FolloWing the intrabeam scattering(IBS)theory of Bjorken and Mtingwa,more general formulae for the growth rates of horizontal,vertical emittance and longitudinal momentum spread are deduced in a simpler form of elliptic integrals.The formulae are applied to the proposed HIRFL-CSR. By means of numerical integration,continuous variations of emittances and momentum spread with time are obtained.The results show that the IBS growth rates are not rapid enough to be a design constraint of CSR lattice.

关 键 词：磁铁结构 束内散射 发射度增长率 重离子 

分 类 号：TL501.5[核科学技术—核技术及应用]