10mm 单层结构蜂窝状漂移室的制作与测试  

Production and Test of 10 mm Single Layer Honeycomb Drift Chamber(HDC)

作　　者：姜春华[1] 朱自安[1] 孙汉生[1] 金艳[1] 张建[1] 杨杰[2] 陈伯显[2] 王经瑾[2] 

机构地区：[1]中国科学院高能物理研究所 [2]清华大学工程物理系

出　　处：《核电子学与探测技术》1998年第1期63-67,共5页Nuclear Electronics & Detection Technology

摘　　要：本文总结了ＨＥＲＡ－Ｂ外部径迹系统北京合作组关于ＭＣ２－１０型蜂窝状漂移室的制作和测试情况。室平均效率近似为（９９．５±０．８）％，当高压大于２３００Ｖ时，效率呈饱和状态。在气体ＣＦ４／ＣＨ４（８０／２０）中，高压为２４００Ｖ时室的串扰小于３％。室中电子平均漂移速度约为１０５μｍ／ｎｓ，最大漂移时间小于８０ｎｓ。以上测试结果均达到了设计要求。We have made and tested ten 10mm single layer HDC for HERA-B.Efficency study shows that the mean efficency of HDC chamber is about (995±08%) and there is a saturation effect of efficiency for voltages above 2300 V.In mixture gas CH4/CH4(80/20),the cross talk between wires is less than 3% at voltage 2400V. The mean drift volicity of electron in a HDC cell is about 105μ m/ns, and the full drift time is less than 80ns. All the items tested have reached their designed goal.(

关 键 词：外部径迹系统 漂移室 蜂窝状 平均效率 

分 类 号：TL815[核科学技术—核技术及应用]