A GEANT4 simulation study of BESⅢ endcap TOF upgrade

被引:0
|
作者
张辉 [1 ]
邵明 [2 ,1 ]
李澄 [2 ,1 ]
陈宏芳 [2 ,1 ]
衡月昆 [3 ]
孙勇杰 [2 ,1 ]
唐泽波 [2 ,1 ]
姬长胜 [2 ,3 ]
陈天翔 [1 ]
杨帅 [1 ]
机构
[1] Department of Modern Physics University of Science and Technology of China
[2] State Key Laboratory of Particle Detection and Electronics,University of Science and Technology of China
[3] Institute of High Energy Physics,Chinese Academy of Sciences
基金
中国国家自然科学基金;
关键词
D O I
暂无
中图分类号
O572.214 [];
学科分类号
070202 ;
摘要
A GEANT4-based Monte-Carlo(MC) model is developed to study the performance of endcap timeof-flight(ETOF) at BESⅢ.It’s found that the multiple scattering efects,mainly from the materials at the MDC endcap,can cause multi-hit on the ETOF’s readout cell and significantly influence the timing property of ETOF.A multi-gap resistive plate chamber(MRPC) with a smaller readout cell structure is more suitable for the ETOF detector due to significantly reduced multi-hit rate(per channel),from 71.5% for currently-used scintillator-based ETOF to 21.8% or 16.7% for MRPC-based ETOF,depending on the readout pad size used.The timing performance of an MRPC ETOF is also improved.These simulation results suggest and guide an ETOF upgrade efort at BESⅢ.
引用
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页码:1 / 6
页数:6
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