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HIRFL-CSR重离子束内散射效应(英文)
Intrabeam Scattering of Heavy Ions at HIRFL-CSR
【摘要】 电子冷却本质上是电子冷却作用与重离子束内散射作用的动态平衡过程.在Bjorken和Mtingwa束内散射理论的基础上,应用对称椭圆积分的方法做束内散射增长率的数值模拟,并应用于HIRFL-CSR的磁铁聚焦结构.计算结果表明,束内散射不会成为CSR磁聚焦结构设计的障碍,并且CSR可以达到冷却设计指标.
【Abstract】 Small-angle multiple intrabeam scattering(IBS)is an important effect for heavy-ion storage rings with electron cooling,because the cooling time is determined by the equilibrium between cooling and IBS process.All usually used numerical algorithms of IBS growth rate calculations are based on the model of the collisions proposed by A.Piwinski,but this result is a multidimensional integral.In this paper,the IBS growth rates are simulated for HIRFL-CSR using symmetric elliptic integral method,and compared with several available IBS code results.
【关键词】 电子冷却;
束内散射;
发射度;
动量分散;
【Key words】 electron cooling; intrabeam scattering; emittance; momentum spread;
【Key words】 electron cooling; intrabeam scattering; emittance; momentum spread;
【基金】 国家杰出青年基金(10325522)资助~~
- 【文献出处】 高能物理与核物理 ,High Energy Physics and Nuclear Physics , 编辑部邮箱 ,2007年10期
- 【分类号】O571.6
- 【被引频次】1
- 【下载频次】39