均匀取样电磁量能器能量纵向泄漏的修正  

Longitudinal Leakage Correction of Uniformly Sampling Electromagnetic Calorimeter

作　　者：李祖豪[1] 陈国明[1] 陈刚[1] 杨长根[1] 杨民[1] 王小斌[1] 张少鹤[1] 杨曌宇[1] 吕雨生[1] 陈和生[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》2004年第11期1188-1192,共5页High Energy Physics and Nuclear Physics

基　　金：国家自然科学基金 (10 0 9963 1)资助~~

摘　　要：研究对铅 -闪烁光纤夹层电磁量能器能量纵向泄漏的纠正 .对AMS0 2电磁量能器 2 0 0 2年束流测试的数据进行了分析 ,用Γ函数拟合的方法和末层沉积能量法对量能器的能量纵向泄漏进行了修正 .经过修正后的能量线性变好 ,能量分辨率显著提高 .末层沉积能量法对于能量分辨率的提高效果更为明显 .Correction of longitudinal energy leakage for a lead scintillating fiber sandwiched electromagnetic calorimeter was studied. Electron data from AMS beam test in 2002 was analyzed. Γ-Function-Fit and Last-Layer-Energy-Deposit methods were used to correct longitudinal energy leakage. The linearity and resolution of energy were clearly improved after the correction. And the Last-Layer-Energy-Deposit method is more effective on energy resolution improving.

关 键 词：电磁量能器 Γ函数 能量分辨率 线性 束流 修正 AMS 沉积能量 拟合 

分 类 号：TL817[核科学技术—核技术及应用]