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

来源：

Chinese Physics C | 2013年 / 09期

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

页码：1 / 6

页数：6

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