BEPC电子直线加速器束流线改进和e,π试验束  

A Test Beam Upgrade Based on the BEPC-LINAC

作　　者：李家才[1] 吴元明[1] 崔象宗[1] 张良生[1] 周宝庆[1] 刘正全[1] 张少平[1] 刘士兴[2] 孙长春[1] 沈激[2] 阴泽杰[2] 张永明[2] 陈子瑜[2] 张竹湘[1] 张彩娣[1] 郑林生[1] 

机构地区：[1]中国科学院高能物理研究所,北京100049 [2]中国科学技术大学近代物理系,合肥230027

出　　处：《高能物理与核物理》2004年第12期1269-1277,共9页High Energy Physics and Nuclear Physics

基　　金：国家BEPC改进专项经费~~

摘　　要：在BEPC电子直线加速器上建立起了E1,E2 ,E3试验束 ,其中E1初级束专门提供给强流慢正电子装置应用 ,E2束是初级正 /负电子束 ,E3为次级高能e± ,π± 和质子等单粒子试验束 ,其动量连续可调 .粒子定位误差 0 .2— 0 .4mm ,混合负粒子计数率 3— 4Hz .已成功地为BESⅢ的TOF探测器模型测试提供试验束流 .A total of three beam lines, E1, E2 and E3 have based on the LINAC of BEPC. The E1 beam is to be used for intense slow-positron facility. The E2 is a primary positron or electron beam with an energy of 1.3—1.5GeV. The E3 is a secondary electron or pion test beam with a momentum can be adjustable continuously. The position accuracy of a detected particle is 0.2—0.4mm with an event rate of 3—4Hz.This beam has been successfully used for some detectors beam test.

关 键 词：试验束 BEPC 单粒子 束流 正电子 BES 高能 电子直线加速器 计数率 探测器 

分 类 号：TL53[核科学技术—核技术及应用]