BEPC中电子云导致的束团横向尺寸增长研究(英文)  

Transverse Blowup along Bunch Train Caused by Electron Cloud in BEPC

作　　者：刘瑜冬[1] 国智元[1] 秦庆[1] 王九庆[1] 赵政[1] 

机构地区：[1]中国科学院高能物理研究所,北京100049

出　　处：《高能物理与核物理》2006年第3期260-263,共4页High Energy Physics and Nuclear Physics

基　　金：国家自然科学基金(10275079,10375076)资助~~

摘　　要：多束团正电子储存环中可能发生电子云不稳定性．由于电子云导致的束团横向尺寸增长已经成为提高对撞机对撞亮度的主要限制因素之一．介绍了在BEPC储存环中,利用条纹相机直接测量由于电子云导致的束团横向尺寸增长结果,并与模拟计算进行了比较．Electron cloud instability （ECI） may take place in a storage ring when the machine is operated with a multi-bunch positively charged beam. Transverse blowup due to electron cloud has been observed in some machines and is considered to be a major limit factor in the development of high current and high luminosity electron positron colliders. With a streak camera, the transverse blowup along the bunch train was first observed in an experiment at the Beijing Electron-Positron Collider （BEPC） and the simulation results were used to compare with the observation.

关 键 词：电子云 条纹相机 单束团不稳定性 头尾模型 

分 类 号：TL594[核科学技术—核技术及应用] U462.21[机械工程—车辆工程]