北京正负电子对撞机试验束描迹仪的应用  

Application of particle track system BEPC test beam

作　　者：刘士兴[1] 张永明[1] 张健[1] 卫小乐[1] 阴泽杰[1] 刘正全[2] 崔象宗[2] 李家才[2] 

机构地区：[1]中国科学技术大学近代物理系,安徽合肥230027 [2]中国科学院高能物理研究所,北京100039

出　　处：《强激光与粒子束》2004年第7期939-942,共4页High Power Laser and Particle Beams

基　　金：BEPC改造子项目经费资助课题

摘　　要：　试验束能提供不同种类、一定动量的单粒子束流。用三个多丝正比室做探测器,采用阴极感应电荷重心读出的方法,由单个多丝室对粒子击中点的二维坐标进行定位,粒子在三个室平面上的二维坐标经拟合后精确地描绘出北京正负电子对撞机试验束单粒子束流的径迹及入射方向。对阴极感应电荷重心读出的理论、实现方法及数据处理做了详细论述,并给出了实验结果。Test beam provides single particle beam for different experimentation. There multi-wire proportional chambers are used as detectors to describe single particle track of BEPC (Beijing Electron Positron Collider) test beam. The method of dimensional readout centroids of the charge signals induced on the cathodes of the chamber was discussed. The determination of the charge centroid gives two coordinates in one chamber. Beeline fittings of 3 two coordinates' position paints single particle track accurately. The principle and circuit of charge amplifier, data processing and analysis result was written up.

关 键 词：试验束单粒子束流 描迹仪 多丝正比室 阴极感应电荷重心读出 

分 类 号：TL506[核科学技术—核技术及应用]