Effect of Light Transmission Characteristic of Scintillator on the Intrinsic Time Resolution of ETOF

LI Xin; TANG Ze-Bo; CHEN Hong-Fang; LI Cheng; SHAO Ming

Chinese Physics C> 2006, Vol. 30> Issue(10) : 1001-1005

Effect of Light Transmission Characteristic of Scintillator on the Intrinsic Time Resolution of ETOF

Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China

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Abstract：
In order to find rational explanation to the experimental result and possible methods to improve the performance of End-cap Time-of-Flight detector (ETOF) in BESⅢ, the Monte Carlo simulation of the detector is carried out by using Geant4 software package. The simulation data of PMT signal and the time resolution of the ETOF are given. The simulation and data analysis are mainly focused on studying the effect of the light transmission characteristic in scintillator when particle hits different position and different thresholds of PMT signal are chosen. The study can make reference for the improvement of ETOF detector in BESⅢ.

References

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. AN Shao-Hui, WU Chong, LI Xin et al. HEP NP, 2005,29(8): 775(in Chinese)(安少辉, 吴冲, 李昕等. 高能物理与核物理, 2005, 29(8): 775)2. LI Xin, WU Chong, AN Shao-Hui et al. HEP NP, 2005,29(6): 586(in Chinese)(李昕, 吴冲, 安少辉等. 高能物理与核物理, 2005, 29(6): 586)3. Geant4 User's Guide: For Application Developers(Version:Geant4 3.1). 20014. Geant4 Physics Reference Manual. December 22 , 20005. ZHANG Li-Ming, PENG Hai-Ping, ZHANG Zi-Ping et al.Meas. Sci. Technol., 2004, 15: N54|N576. Mattew Jones CDF/DOC/TOF/CDFR/5358. 2000

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LI Xin, TANG Ze-Bo, CHEN Hong-Fang, LI Cheng and SHAO Ming. Effect of Light Transmission Characteristic of Scintillator on the Intrinsic Time Resolution of ETOF[J]. Chinese Physics C, 2006, 30(10): 1001-1005.

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Received: 2006-02-13
Revised: 2006-03-03

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