摘要
在北京正负电子对撞机 (BEPC)中 ,正负电子束团的长度及其拉伸是束流性能重要指标之一 ,它直接影响到物理实验的效率 ,对BEPC的改进和性能进一步提高也起着关键的作用 .由于用条纹相机测束团长度 ,具有精度高 ,且直观的特点 ,因此 ,近年来条纹相机在加速器束团测量领域得到了广泛的应用 .本文将介绍用条纹相机测量BEPC储存环束团长度的原理、方法、系统配置。
In the BEPC electron positron storage ring, the bunch length and its lengthening are quite important characters. It determines the efficiency of getting physical events and the luminosities achievable, and it plays a key role in the upgrade of BEPC. Because of advantages of precision and visualisation, streak camera is commonly used to measure the beam length in accelerators. In this paper we describe the operation principle, the features and the basic system configuration of the streak camera. The systematic and random errors in the measurement are analysed. Some typical results of measurement in recent years are presented.
出处
《高能物理与核物理》
CSCD
北大核心
2003年第4期359-362,共4页
High Energy Physics and Nuclear Physics
基金
国家自然科学基金 ( 19975 0 5 6)资助~~
